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Accelerometer Data Collection and Scoring Protocol

1. 10 2 Charging Testing Initializing and Delivering Actigraphs 13 A Dattenes old models ONY bd 13 ew models only ion aa 13 WE 14 D Initializing older models ohnly eere 14 E Initializing new models ohnly eee 15 p The Ac praph to riir AE in 16 G Instructions for Wearing the Actigraph cessere 16 Recruitment Script Examples n ta erre 18 IMs T E T E E LL 1 1 L7 1 7 T 19 3 Compliance Tips and Prompting 4 8 20 EE BIRD 20 D DH IDs UENIRE ODE cR SM 21 C Call Descripiotis rio peer ro PER re edes 22 te Paci AD AIAG PREND 25 A Downloading Actigraph Data from old models Actisoft software 25 B Downloading Actigraph Data from new models Actilife software 26 C Configuring Meter Plus to Screen 26 28 E Valid Wearing Time 1 29 E Invalid Wearing Time Exariples rant
2. 49 D gt lt 51 9 IFEN Study SDOCIHC ER ERES 52 10 55 As Meter 55 B Meter graphs for 56 o 57 D Eiter or 58 E eset pc ee 59 D add RUE 60 Checklist for in person delivery 0 61 H Meter Calibration older models only eese 62 NOLS Senior Cut point Memorandum eere 63 J Compliance and Return rates Equipment loss Device malfunctions 64 Accelerometer Manual 4 1 Preparing for ActiGraph Data Collection z A Equipment There are several different ActiGraph models that are used in our studies Below is a brief description of each For NQLS Adult NQLS Senior we used both the 7164 and 71256 models Within IPEN a variety of models have been used We are conducting studies to determine if a correction factor 1s necessary to allow us to use different Actigraph models in a pooled dataset So far the evidence from laboratory studies suggest th
3. Vek Hows 122222006 12 23 2005 122422006 12 25 2005 1 25 2005 1227 2005 1 28 2005 122922006 1 30 2005 173172006 21 2006 227 2006 23 2005 Reports Serial Number SM501 30 Start Time 00 01 00 Start Date 02 10 2006 Epoch Pernod hh mm ss 00 01 00 Download Time 14 47 57 Download Date 02 22 2006 Current Memory Address 0 Battery Life Remaining 3811 hre Current Memory Address 0 in the header of the file is always a red flag This means the device stopped recording new data at some point Close same Actigraph unit 2 different participants showing repeated data starting 2 16 2006 27 MeterPlus default mpo default File Tools Reports Help Help SACSA DatasActigraph TrainingFirstmeters 6101320 REPEAT dat Date Yale Hours Valid Dau Day Of Week 2711 2005 Saturday afl 2 2005 i 3 es Sunday 221372006 17 es Monday 21472006 17 Yes Tuesday es Wednesday E ey Thursday Friday Saturday Sunday Monday Tuesday Wednesday Thureda SAME DATA Accelerometer Manual 32 J Shift Worker we MeterPlus default mpo Daily Info for Monday September 18 2006 SACSA Data Colombia Training MeterFiles_Examyp Number of Data Points each Hour 60 2180 3214 2643 2604 2195 2643 2001 1746 2094 2175 Date VaidHous Valid Day 549 28 47 145 108 447 754 1042 36 935 33 37 852 1052 136 3 15 2005 7 No 0 0 0 0 0 0 0 0 0 0 0 0 0 22 0
4. Should we ask participants to complete a log of when they put the unit on and take it off Although we can get at most wear patterns by looking at the raw data we always ask participants to complete a log of dates and times when they wear the meter and when they took it off for more than 5 minutes It can be useful when screening data and helps with compliance by serving as a reminder Should we ask participants to re wear the Actigraph if not enough good data are collected the first time Yes We ask for re wears if participants don t meet the criteria for compliance This drastically increases the amount of useable data we retrieve see compliance rates in Appendix pg 64 We generally don t send more than two meters to any one person unless of equipment not participant error or we feel confident that they will wear and return the device We make sure to tell participants that this is our procedure upfront What is enough wearing time to be considered compliant and therefore not asked to do a re wear For compliance screening for both adults and seniors we wanted 5 valid days containing at least 10 valid hours or at least 66 valid hours across all wearing days How should we define a valid hour For NQLS Adult we originally defined non wear time as more than 30 minutes of consecutive zero counts For NQLS Senior we originally defined it as no more than 45 minutes of consecutive zeros However based on a few studies and o
5. epoch 2 minute interruption Save Save and Close Exit Energy Expenditure Note MeterPlus can calculate these variables from 5 10 15 20 30 or 60 second epoch data There is no need to convert to 60 second files prior to analyzing energy expenditure 0 MeterPlus Options View Data Score Data Categories Filename Bouts kCals Fiters v Include caloric output in file Choose Formula Work Energy Theorem Kca s min 0 cour sminute body mass in kg Freedson Equation 0 0009A counts mintues 0 1346 body mass in kg 37418 Combination greaterthan 71942 Accelerometer Manual 40 Time Filters E idm Apply to Days Weekends Only Specific Date 5 16 2009 Sum data within these time periods m Start Time 09 00 AM End Time 0500 All Days Weekdays Only Scoting Using Meter Plus 0 MeterPlus Options View Data Score Data Categories Filename Bouts kCals Filters v Create Time Filter Output File 08 00 AM 12 00 PM Weekends Only 03 00 PM 07 00 PM Weekdays Only Add Filter Edit Delete See MeterPlus User s Manual Section 13 for more details Select your group of cut points or create your age file to use age specific scoring Create your participant weight file to use in energy expenditure calculations and or select a default
6. valid days from screening process valid hours from screening process optional actual dates worn as verified from log or seen in data will help with scoring later Day 1 date these variables are helpful to spot trends in compliance issues Day 1 day of week Day 1 valid or not reason if not valid e g put on too late took off too early Day 1 comments repeated for however many days you need Comments Flags for the following situations may also be helpful O O O O O O OOO Actigraph not downloaded because participant dropped etc yes no Actigraph lost yes no Actigraph sent for repair yes no Actigraph not worn at all no data to save yes no Actigraph worn overnight or other odd patterns in data comment Aberrant data all one value 32767 values all 5 digit counts Other data problems comment Re wear needed yes no Re wear requested yes no Activity graphs requested yes no We also create a table in the database to inventory each unit that includes the following variables O serial number Accelerometer Manual 11 comments notes text field O status checkboxes for Active Lost Broken and On Loan o calibration date older units only o d calibration adjusted older units only 2 Before each scheduled meter delivery create a new record in the database and enter the relevant information participant serial date delivered etc Put a small sticker on each ActiGraph
7. Accelerometer Data Collection and Scoring Manual For Adult amp Senior Studies Kelli L Cain M A Carrie M Geremia B A University California San Diego San Diego State University James Sallis Active Living Research Lab June 2012 This comprehensive accelerometer data collection data screening and data processing manual was created as part of the Neighborhood Quality of Life and the Senior Neighborhood Quality of Life Studies both of which used mail delivery and retrieval methods This manual was started in 2002 and is based on the cumulative experience of our research team We have adapted our protocols and materials for children and teens and successfully collected accelerometer data from over 5000 adults seniors teens and children The protocol has also been adapted for an international study in 12 countries that will pool accelerometer data from over 8000 participants Although this manual is focused on data collection in adults and seniors a version focused on children and adolescents will be posted soon Suggested Citation Cain Kelli L amp Geremia Carrie M 2012 Accelerometer Data Collection and Scoring Manual For Adult amp Senior Studies San Diego State University San Diego CA Available for download at http sallis ucsd edu measures html Updated June 6 2012 3 SAN DIEGO STATE UNIVERSITY UCSD Revised June 2012 to update compliance table new contact information new ActiGraph mod
8. Date Valid Hours Valid Day Day Of Week 2 5 3 2008 No 5 4 2008 0 No Daily Info for Wednesday 14 2008 eee T Mi Number of Data Points each Hour 120 5 7 2008 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 8 2008 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 3 2008 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 510 20 11 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 11 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 aa 5713 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 14 20 10 515 20 3 N 0 0 0 26 93 16 83 391 30 0 0 0 35 21 4 0 B ss i 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 16 20 0 No 0 0 0 0 0 0 0 0 0 0 0 0 37 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 568 0 678 2 42 31 69 0 0 49 97 0 0 1t 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 44 125 16 0 0 0 0 0 0 B4 0 0 10 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 62 0 0 0 0 41 0 21 482 1555 905 316 33 0 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 20 4 B5 28 0 0 0 0 0 30 4 0 0 25 0 0 8t 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 19 0 0 0 0 19 0 0 0 0 0 0 0 0 v Non wearing day 1 Shows 10 valid hours in MeterPlus but opening the raw data show that is either a mail day or a day when the meter was kept in a car There are low counts and an abundance of zeros The wear time pattern is present but the pattern of zeros interspersed with periodic low count indicates time spent w
9. Date Valid Hours Valid Dad Number of Data Points each Hour 60 0 3 14 2006 3 15 2006 3 16 2006 3 17 2006 3 18 2006 9 19 2006 9 20 2006 3 21 2006 3 22 2006 3 23 2006 3 24 2006 3 25 2006 9 26 2006 9 27 2006 9 28 2006 9 29 2006 ecOocococccoococcc 102 27 638 202 31 69 0 272 551 1087 305 284 815 124 472 1 476 350 72 j e J oo Change Valid Value Save Change Close m K Valid Wear Time Criteria Neighborhood Quality of Life Study NQLS Adult ages 20 65 Participants measured for seven consecutive days using a 60 second epoch A X 5 Participants are required to have at least 5 valid days for each meter wearing A valid bn BOR OO day 1s defined as a day containing at least 10 valid hours A valid hour 1 one that does QuALITY OF LIFE stypy not contain a string of 30 or more zeroes equivalent of 30 minutes For scoring we used 8 hours as the minimum to include a few more participants in the accelerometer Accelerometer Manual 33 oo NEIGHBORHOOp J ALITY OF Lj FE STUDY FOR SEN IORS INTERNATIONAL PHYSICAL ACTIVITY AND THE ENVIRONMENT NETWORK sample Exception A participant can have less than 5 valid days if they have at least 66 valid hours over the course of the time they wore it These days are manually changed to valid in MeterPlus Neighb
10. Step 1 Adjust again as necessary d Calibration should be recorded in the Meter Database the Master Meter Form Find the meter and record the date and calibration reading Accelerometer Manual 61 NQLS SENIOR CUT POINT MEMORANDUM March 13 2008 From Terry Conway amp Kelli Cain Subject NQLS Senior proposed cut points for accelerometer counts minute for different physical activity PA intensity categories To come up with proposed ranges of accelerometer counts minute for different PA intensity categories in the NQLS Senior study of older adults 66 years of age we compared cut point ranges previously used in the NQLS Prime study of adults 18 65 years of age Troiano et al s 2007 study of a national sample of adults 18 70 years of age and data from the LIFE P study of somewhat impaired older adults 70 85 years of age who completed a 400m walk test When considering what ranges of accelerometer counts minute would be best to reflect PA intensity levels in NQLS Seniors we had 2 primary criteria 1 maintain sufficient consistency with cut point ranges used in NQLS Prime so that samples in the Prime and Senior studies could be combined and compared if desired at a later point e g to compare PA and relationships across a broad range of age groups and 2 make adjustments in the categories to capture lower intensity PA levels in seniors that might be important for functioning and well being To meet these criteria we p
11. person who worethe Wear the meter attached to the belt around your weist just above your piat hipbone movement meter for sufficient amount of time The bottom graph is from a person who You can wear it either underneath or on top of your clothing didn t wearthe meter for long enough and had to wear t amp Wear the meter so that the star sticker is facing up This person did greatjob of wearing ther meter an you can see on fne graph hey putt E on when fey woke Wear the meter snug against your body If you have to pou can adjust the belt by up atabout 7 30 in pulling the end of the strap to make it lighter Or to loosen the bell push more of the rinm ru strap through the loop Wear the belt tight enough so that the meter does not y ud 8 30 atnight Move when you are being active Please put it on first thing in the morning either just after you get out of bed or just after vou shower or take a bath in the morning Do not submerge the meter in water swimming bathing etc This person Heepthe acbvity meter on all day unless swimming or m the wabe would have to At night take it off right before you go to bed You should be wearing the meter wear meter agam They putiton Do not let anyone else wear it when they woke up atabout9 00 in fhe morning butiookitoff at The meter has a very short battery life about20in The last full day that it will work is If
12. the meter needs to be sent to MTI for repair 4 In the downloading process the Actigraph software gives you an error that reads the Actigraph is no longer sending data do you want to save this data anyway You will select no although the software will save a version regardless You will need to then go into the files folder to delete the dat file for this meter first check that it is in fact empty then proceed to download again This happens from time to time mostly when multiple programs tasks are happening simultaneously on the computer while downloading Most of the time it will download properly after this error Here are some other specific issues and troubleshooting advice based on our experiences Question I set up the RIU using the USB connection and I also installed the driver for the USB adapter as recommended for computers with window XP Putting the actigraph in the RIU unit shows continuous flash rate on the reflective surface of the reader unit but no information displays on the INFO column in the bottom corner of the Actisoft Analysis Software screen Clicking the Actigraph info or initialize from the left hand menu bar of the screen display No Actigraph in Reader OR default port has changed or Error Actigraph Initialization Failed Ensure Actigraph is in Reader respectively However clicking initialize display the number of battery hours in the bottom right hand corner of the Actisoft Software screen says 40
13. 23 2007 18 9 30 2007 18 10 1 2007 17 10 2 2007 20 10 3 2007 19 10 4 2007 19 10 5 2007 10 6 2007 8 10 7 2007 0 10 8 2007 2 10 9 2007 5 5 0 I J e MA ceo oo 10 10 2007 10 11 2007 ecCoglococoococococ a e e C3 oO C r c co c cgo ko J c5 e a co n3 c 4 pos 4 J e 9 7 855 co eo oon A dg Meter worn overnight MeterPlus will show each day as valid with valid hours to 24 The data will be mostly clumped in the waking hours of the day but will show scattered counts throughout the sleeping hours Flag these files in the tracking database so they can be cleaned later We could manually replace these data with 0 values or use Time Filters to summarize activity during waking hours only Accelerometer Manual 30 H Meter malfunction examples counts over 16000 repeating counts counts within a restricted range arranged in a columnar pattern etc SACSA Data NQLS CSA files TEAN Files bad data 31 404501 3084_1 dat Date ValidHours Valid Day Day Of Week 12 30 1899 24 Yes Saturday Activity 12 31 1888 24 Yes Sunday Activity 1 1 1900 24 Yes Monday Activity 1 2 1300 24 1 3 1900 24 1 4 1900 24 1 5 1900 24 1 6 1900 24 D
14. 9 16 2006 10 Yes 0 114 739 190 562 224 423 0 0 2 0 0 0 0 9 17 2006 11 Yes 13 151 1 18 137 143 28 135 355 17 21 103 67 D 4 9 18 2006 11 Yes 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9 19 2006 7 No 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9 20 2006 10 Yes 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 21 2006 9 No 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9 22 2006 2 N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 q 23 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 B 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9 24 2006 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9 25 2006 8 No 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9 26 2006 4 No 0 0 0 D D 0 0 0 0 0 0 0 0 0 0 93 27 2006 1 No 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 28 2006 0 No 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9 28 2006 0 No 178 166 454 133 D 0 0 0 0 0 241 58 358 291 599 128 41 84 75 8 37 102 27 546 35908 5051 3511 3061 27 327 145 726 3070 933 1213 735 638 202 241 304 411 231 92 71 S 498 25 0 43 31 11 17 31 69 2885 3411 2113 40 452 1188 2199 1324 3842 2168 588 82 0 0 D 0 0 0 0 E21 ana A34 FR FNA 272 ER1 An A71 E14 623 i Change Valid Value C Save Change Close Make time adjustment using Meter Start Time for Participant Time Zone to make data fit into days The reason you might want to do this is to avoid losing partial days at the beginning and ending of the wear time because they might not have enough valid hours to be considered valid on their own SACSA Data Colombia Training M eterF ilc Daily Info for Monday September 18 2006
15. M de Bourdehaudhuij I Androutsos Manios Y Felso Kovacs E Doessegger A Bringolf Isler B te Velde SJ Brug J Chinapaw MJM Study protocol of physical activity and sedentary behaviour measurement among school children by accelerometry Cross sectional survey as part of the ENERGY project BMC Public Health 2011 11 182 Edwardson CL Gorely T Epoch Length and Its Effect on Physical Activity Intensity Med Sci Sports Exerc 2010 42 5 928 934 Penpraze V Reilly J MacLean C et al Monitoring of physical activity in young children how much is enough Pediatr Exerc Sci 2006 18 483 49 1 McClain JJ Abraham T Brusseau T Tudor Locke C Epoch Length and Accelerometer Outputs in Children Comparison to Direct Observation Med Sci Sports Exerc 2008 40 12 2080 2087 Baquet G Stratton G Van Praagh E Berthoin S Improving physical activity assessment in prepubertal children with high frequency accelerometry monitoring a methodological issue Prev Med 2007 44 2 143 147 Vale S Santos R Silva P Soares Miranda L Mota J Preschool children physical activity measurement importance of epoch length choice Pediatr Exerc Sci 2009 21 4 413 420 Sirard JR Slater ME Compliance with Wearing Physical Activity Accelerometers in High School Students J Phys Act Health 2009 6 1Suppl S148 S55 Masse LC Fuemmeler BF Anderson CB Matthews C E Trost SG Catellier DJ et al 2005 Accelerometer data reduction a comparison of
16. Most helpful is the constant prompting and communication with participant phone email mail texting and not giving up Project websites useful for demystifying the Actigraphs can also be a place for FAQs Email address and toll free number encourages communication Actigraph generated Excel charts of valid and non valid wearing days to increase compliance showing these to participants before their wearing time gives them a sense of the output encourages complete valid days Let them know they will have to re wear if they don t provide enough valid data Visuals have worked best with kids but telling adults we will check their wearing time seems to work well Participant materials Helpful to increase the amount of expected valid wearing time on all materials e g instructing participants to wear the meter for 12 hours in order to get 10 provide an when the meter will run out of batteries or memory this has improved our return times by 3 days on average Including 8 days on the log resulted in 20 of sample providing 8 valid days instead of 7 they were asked for Sending stamped return envelopes offering in home pickup if local Meter logs see example provide participants with a daily assignment that can help improve compliance They are also helpful when making decisions about wear time during data processing Meter Log Wear the movement meter for seven 7 consecutive days the table b
17. Nillson A Ekelund U Yngve A Sj str m M Assessing physical activity among children with accelerometers using different time sampling intervals and placements Pediatr Exerc Sci 2002 14 87 96 Esliger DW Copeland JL Barnes JD Tremblay MS Standardizing and optimizing the use of accelerometer data for free living physical activity monitoring J Phys Act Health 2005 3 366 383 Calibration studies for adult and senior cut points Freedson P S Melanson E amp Sirard J 1998 Calibration of the Computer Science and Applications Inc accelerometer Med Sci Sports Exerc 30 5 777 781 Matthews CE Chen KY Freedson PS Buchowski MS Beech BM Pate RR Troiano RP Amount of Time Spent in Sedentary Behaviors in the United States 2003 2004 American Journal Of Epidemiology 167 no 7 2008 875 81 Sasaki J John D amp Freedson P 2010 Calibration of the Actigraph GT3X Activity Monitor ICPAPH conference Pruitt LA Glynn NW King AC et al Use of accelerometry to measure physical activity in older adults at risk for mobility disability Journal of Aging amp Physical Activity 2008 16 4 416 434 Copeland JL Esliger DW Accelerometer assessment of physical activity in active healthy older adults Journal of Aging amp Physical Activity 2009 17 1 17 30 Calibration studies for youth cut points Trost SG Loprinzi PD Moore R Pfeiffer KA Comparison of accelerometer cut points for predicting activity intensity in
18. P walkers to be classified as low moderate counts minute would have to be in roughly the upper quartile of LIFE P walkers and to be classified as high moderate counts minute would have to exceed the maximum value seen in the somewhat impaired LIFE P seniors who were instructed to walk at their usual pace without overexertion Accelerometer Manual 62 Comparison of accelerometer counts minute cut points for different physical activity intensity categories Study clon Counts per Minute for Intensity Ranges amm Low High Moderate Moderate Vigorous Sedentary Light Light 1 NQLS Senior Seniors 1953 3300 proposed 57254 categories 88 years 3299 5724 threshold is below 149 counts min See 70 which was minimum value in 400m walk threshold is above 3133 counts min 25 value 78 tile 929 tiles 1960 n a counts mi 929 counts min n in 1831 in 400m 400m counts mi walk walk n in 400m walk NQLS Prime Adults 18 65 years 100 101 1952 1953 5724 1 5725 1 Adults 18 04 ria etal ears 2020 5998 5999 national sample which was maximum value in 400m walk Accelerometer Manual 63 Ed Wearing Time Guidelines Compliance Rates Return Time Equipment Loss Rate and Device Malfunction Rate for Studies in Adults Seniors Children and Adolescents Seniors Adults Children n person M
19. additional modes of data collection at this time Change the epoch 60 sec for our adult and senior studies However our advice is usually to go as short as your memory will allow You can always aggregate up to a longer epoch but can never reduce to a shorter epoch Shorter epochs tend to be used in the newer algorithms being developed e g Crouter 2 regression equation Leave Filter Option as Normal However based on recent study findings it has been determined that the Low Frequency Extension produces single axis output more similar to the older models which may actually be more accurate paper in process Change the start time to 12 00am midnight and change the start date to the day that you d like the Actigraph to start recording data For mailing protocols this 1s between 3 and 5 days depending on how far they will be sent and the postal service selected For in person delivery this 1s usually the following day END DATE AND TIME Make sure the Enable Stop Time is unchecked Change the subject name using the participant ID It can also be helpful to add in additional information 1n the Name because this can be used to create separate variables the ID can be parsed in the output file Click OK Initialize GT3X Select Other Optional Modes Epoch Period Epoch GT3X Mode M in seconds 60 Activity Default Mode Step Count Flash LED Dual Axis Start Date amp Time 4 20 201
20. and filtering selection Longer battery life should work for most studies Less expensive Raw data may provide access to new activity classification algorithms e g pattern recognition Cons Data may not be comparable to older models without using the Low Frequency Extension doesn t apply to step counts which are not comparable with or without the low frequency extension publication in process inclinometer not validated users don t have guidance about Hertz selection E B Determining Inventory Needs To determine how many units you need there are a few estimations that need to be made a How many participants do you want to measure in what amount of time b How many units will be lost in this amount of time see our loss rates in Appendix pg 64 c What will be your average return time and in office turnaround time The following will affect your return time and loss rates Accelerometer Manual 6 o How will your units be delivered and retrieved o What population are you working with o How well staffed you are for prompting the return of the units We developed a formula for helping determine the number of devices needed to complete data collection efficiently days of data collection return time in office time X X loss rate Y X Y the of time the unit can go out in data collection period used above 7 Number of participants to measure Z desired inventory to meet your measurement goals pope
21. and not just for a few hours Computer Equipment failure The recruiter needs to call and ask the participant to re wear the Actigraph 10 can be offered as compensation for the inconvenience Re wear Call Script Hi this is First Name from the study name Is participant s first name available Hi participant s first name I m calling because we received your materials back in the mail thank for sending those back to us Unfortunately we took a look at the meter data and it looks like we don t have enough data Explain how many valid days are needed discuss reasons for non valid days not enough hours etc I m calling to see if you would be able to wear the meter again for amount of time needed full days Thank you We really appreciate your help I will send you a meter today and will give you a call in a couple of days to check in Accelerometer Manual 35 5 Cleaning and Scoring Data Before the scoring process can proceed screened files called MeterPlus data MPD files must be created from DAT files This feature allows the user to exclude days when the Actigraph was not being worn was in the mail etc and deals with non wearing time within valid days A Configuring MeterPlus to Clean Data MeterPlus Options Hours required Far a valid day 1 0 Mumber af consecutive zeros to make an hour invalid 30 Value ta use for undefined field IN LLL Replace strings of zeros with the followin
22. areas summary of Recommendations for Scoring Actigraphs for IPEN Non wear definition 60 minutes of consecutive zeroes for all Actigraph models supported by previous studies Winkler Rowlands 2009 Evenson 2009 and our in house validation study No recommendation for Actical Manually screen for non wearing days especially if using 7164 model Instructions and examples using MeterPlus are provided in IPEN accelerometer protocol Require 10 hours of wearing time for valid day however we are asking that ALL wearing days are saved even if less than 10 valid hours Screenshots with correct MeterPlus settings are below After screening and identifying valid days send MPD files to IPEN Coordinating Center for further processing along with raw data files DAT or CSV files The IPEN Coordinating Center will score files using these guidelines Freedson 1998 cutpoints 21952 for moderate intensity 100 cpm for defining sedentary behavior Matthews 2008 Treuth 2004 Evenson 2008 10 min bouts with 2 min tolerance possible Segmenting day into different time periods possible Will use accelerometer model as covariate in analyses this will control for differences in sensitivity by model For countries that have already created MPD files using the previous recommendations 30 minutes to define non wear the Coordinating Center will re create the MPDs with the new recommendations In this case please send both MPD and DAT CSV file
23. been recovered Our mailing address 15 We look forward to hearing from you soon Sincerely The Neighborhood Quality of Life Study Accelerometer Manual 59 CHECKLIST FOR ACTIVITY METER DELIVERY Meter Delivery CHECKLIST L L OG LI LI LE Lg LI L Make link between device serial number and participant Show participant the graphs of compliant and noncompliant data patterns Offer to provide personalized graphs to participants when they are done Adjust belt to fit participant and show them how to wear it Make sure participant can start right away no travel plans Give participant meter log and explain Give participant meter instructions and review Give participant your contact information Make sure all talking points are covered How to wear the meter o Wear for 7 complete days Wear for 12 hours every day Wear during waking time don t wear it to bed at night Need to start right away battery will only last 10 days Will ask for re wear if don t get enough wearing time Go about your normal activities don t do anything different OO Ooo Tips for compliance Put next to bed or cell phone where you will see it first thing each morning Complete meter log each day as a reminder How to care for meter Valuable for research no monetary value Don t get meter wet o Don t let anyone else wear it it s only for you Stay in contact Someone from our office will call yo
24. call us at tel number or go to our website at web site address Please remember to start wearing the meter tomorrow morning Thank you The Project staff REWARD LETTER Dear We are writing because we have not received your activity meter We have made numerous attempts to contact you by phone The meters are very valuable to us and other participants are waiting to wear the meter If you have temporarily misplaced the meter please make every effort to locate it To stress the importance of you getting the meter back to us we will pay you 50 00 to send the meter back in the enclosed envelope regardless of whether you have worn it Please return the meter even if you have not yet worn it because the battery has expired and it 1 no longer recording anything We will continue to contact you if we do not receive the meter very soon If you have any questions please call us at our toll free number number Thank You The Project Team Accelerometer Manual 58 LOST MAIL LETTER Mail Recovery Center P O Box 7872 San Francisco CA 94120 7872 To Whom It May Concern The Neighborhood Quality of Life Study is a research study based in San Diego CA and Cincinnati OH and we are currently studying neighborhoods in Seattle WA King County Our study relies heavily upon the mail system and we send and receive letters and packages on a daily basis One package that we mail to our participants and that we later recei
25. for 22 days and the long term 71256 meters for 91 days If the meter has been recording for longer than the maximum time the data will not be lost Continue downloading the meter as usual 1 If the meter is flashing the slow 1 1 1 sequence but the meter has not been out longer than its run time 22 or 91 days and it did indeed get initialized something else may be wrong Download the meter An error saying the current memory address is zero may appear This indicates a problem with the meter and regardless of the outcome you will need to send the meter for repairs In order to attempt to retrieve the data go to Admin then Recovery Mode You will then have to select the number of epochs to download Calculate the number of epochs by multiplying the number of days it has been running by 1440 the number of minutes in one day Enter that number into the program and hit return to begin downloading 2 Whenever you have a 0 memory address in a file the data need to be scrutinized carefully This means that at some point the unit stopped collecting new data and the file contains a combination of old and new data Accelerometer Manual 45 You will have to determine the point at which the malfunction occurred by comparing data files from previous wearings side by side 3 Whenever you have to force a download check the battery life If the battery life has increased from the time the meter was sent out to the time it was received
26. four reduction algorithms on select outcome variables Med Sci Sports Exerc 37 11 Suppl 5544 554 Catellier DJ Hannan PJ Murray DM et al Imputation of missing data when measuring physical activity by accelerometry Med Sci Sports Exerc 2005 37 11 Suppl S555 S562 Welk G J Schaben J A amp Morrow J R Jr 2004 Reliability of accelerometry based activity monitors a generalizability study Med Sci Sports Exerc 36 9 1637 1645 Yngve A Nilsson A Sjostrom M amp Ekelund U 2003 Effect of monitor placement and of activity setting on the MTI accelerometer output Med Sci Sports Exerc 35 2 320 326 Accelerometer Manual 48 Troiano R P Berrigan D Dodd K W Masse L C Tilert T amp McDowell M 2008 Physical activity in the United States measured by accelerometer Med Sci Sports Exerc 40 1 181 188 Ward D S Evenson R Vaughn A Rodgers A B amp Troiano R P 2005 Accelerometer use in physical activity best practices and research recommendations Med Sci Sports Exerc 37 11 Suppl 5582 588 Mattocks C Ness A Leary S et al Use of accelerometers in a large field based study of children protocols design issues and effects on precision J Phys Act Health 2008 5 1Suppl S98 S111 Trost SG Pate RR Freedson PS Sallis JF Taylor WC Using objective physical activity measures with youth How many days of monitoring are needed Med Sci Sports Exerc 2000 32 2 426 431
27. gentle force to release the battery This method prevents damage to the small nibs that retain the battery The idea here is to use minimal force to avoid permanently deforming the battery holder retaining nibs 4 Insert new battery into the holder by snapping into place The positive terminal faces up B Charging new models only ActiGraphs will be initialized the day BEFORE they will be distributed or mailed to participants Therefore each unit must be fully charged and initialized with plenty of time before they are to be distributed The ActiGraph GT3X s rechargeable Lithium Ion battery is capable of providing power for 31 days without recharging GT1M is 14 days and GT3X is 21 days Recharging is automatic and is accomplished by connecting the ActiGraph to a standard USB port Charging time will depend on the battery life but will typically not exceed three hours for a fully depleted battery When connected to the USB port of a computer the LED will FLASH until data collection starts This indicates that the ActiGraph is charging Once the battery is completely charged the LED light inside the device will remain lit it will no longer flash This is something useful to tell participants if delivering in person so they don t think the meter has stopped working if the light stops flashing When the device 15 removed from the charging hub the LED will go off A fully charged battery will have just over 4 0 volts If the battery
28. goes below 3 1 volts the device will not have sufficient power to initialize and download The battery level reported in volts can viewed using the Actilife lifestyle software Just plug the device into a computer and the remaining voltage will appear on the default screen Accelerometer Manual 13 A USB hub should be used to charge multiple ActiGraph units Each hub can be connected to an electrical outlet or to the computer For most studies we use two USB hubs enabling us to charge up to 14 devices at one time You can purchase these hubs from any vendor not just ActiGraph C Testing Test each unit by initializing and wearing it for at least 24 hours Our preference for new units is to wear them as a pretest for 7 days to identify faulty batteries that cause the device to fail after 4 or 5 days Download and check that the device recorded data and the counts are within a reasonable range 16 000 cpm IPEN study investigators can send any questionable files to the IPEN Coordinating Center for a determination of the next steps D Initializing older models only 1 Actisoft software must be installed on the computer you are using and initialization and download should happen on the same computer 2 Place the Actigraph in the carriage label side up and serial number facing away from you notch facing you 3 Open the Windows program Actigraph exe 4 Choose the Initialize option at the top left corner
29. indicating the side Also label with an address and phone number so it can be returned if it 1s lost Example Label NQLS Study 3900 5 Avenue Suite 310 San Diego CA 92103 If found please call 1 877 555 9200 x When the Actigraph returns and 1s screened enter the relevant information date received date downloaded or not downloaded valid days etc 1n the database gamble meter tracking form a Data Probl LAM Lou Database ata Problems ear lime Log Day 1 Country Not Downloaded Day Date Time on City Never Worn Stage Other Data Problems Tire re EE Recruiter n Round Valid hours Reason for invalid day Serial Comments DAY 2 Last Day battery or memory Day Date Outgoing Time on Date Delivered Time ove Date Activated Date Charts Prepared Date Sent for Repair Date Sent to IPEN CC for consult Lenath of Time Out DAY 3 22 Day Date m Date Retrieved 055 Tre removes Valid Days Valid hours T Reason for invalid daf If not enough valid days valid hours DAY 4 Rewear Requested Day Ts Y Drop Time on Time off LEN Tre removes 8 Valid hours Reason for invalid dy Valid hours uM Reason for invalid tracking database is available upon request Accelerometer Manual 12 2 Charging Testing Initializing and Delivering Actigraphs m A Batteries old mode
30. pe FOR EXAMPLE Suppose we needed to measure 100 people one time across a 12 month period using a mail out and mail return protocol Using this formula and assuming a 30 day average return time 5 days of in office time and 4 loss it would be determined that 10 ActiGraphs were needed So we would need to have 10 ActiGraphs for every 100 participants to measure C Budget and Staffing Below are the costs you can use to estimate budget and staffing 2011 2012 costs These estimates include recruitment and data collection We always assume postage rates will increase several times throughout the course of the study Data collection costs Actigraphs 250 per unit Supplies 13 per participant Postage 17 per participant mail delivery and retrieval USPS Priority Mail Phone expenses assuming existing phone equipment 7 per participant Equipment accessories belts clips 5 unit per year newer units and 25 unit per year older units e Incentives 15 per measurement is our guideline Actigraph alone 15 survey Actigraph 30 e Travel costs varies based on study design Staff at least 1 half time person Some studies need the equivalent of 3 full time staff It is important to have staff available for the follow up and prompting this is KEY to quick return time and low loss rate Also a dedicated staff member to work with the equipment is highly recommended D Data Decisions There are quite a few decisio
31. s name I gave you a call this week but haven t been able to reach you by phone I wanted to check in to make sure everything is going ok with wearing your meter The meter contains very valuable data from past participants so please return it to us as soon as you are finished If you have any further questions please write me back or call us at toll free or local number Thanks and have a great day staff name study name Accelerometer Manual 23 4 Receiving ActiGraph Data 10 11 12 MeterPlus v Downloading ActiGraph Data from Old Models Actisoft software SANTECH INC When the Actigraph is returned wipe it with a sanitizing cloth to clean it Put belt in designated to be washed location Record date Actigraph received and date downloaded verified in the meter Access form Record number of days that meter was out Place the Actigraph in the carriage label side facing up and serial number facing away from you notch facing toward you Open the Windows program Actigraph exe Scroll over Stop Actigraph and click on the Stop amp Download option that will appear Select download data filename will pop up click OK and if it is a long term meter you will receive another pop up warning that it could take some time click OK again At this time check that the battery life from the returned meter corresponds to the amount of time the meter ha
32. the meter while showering bathing or swimming If it gets slightly wet please dry it off and it should be fine When you have completed wearing the meter please send it back as soon as possible The meter runs on a battery and if not returned promptly the data will be lost You will find a log in the package to record the dates and times that you put on and take off the meter Please keep the log in a place where you will see it every day perhaps next to where you put the meter when you are sleeping to remind you to keep track daily If you chose to complete the survey in writing you also find the written survey in the package If you chose to complete the survey online you will receive an emailed link to the beginning of the survey in a few days If you chose to complete the survey over the phone a staff member will be calling you in a few days to schedule this Please do not fill out the survey until you are finished wearing the meter for 7 full days When you have completed the survey and finished wearing the meter please return everything meter survey and meter log in the enclosed stamped envelope as soon as possible It is important that we receive your materials a timely manner so that we can send you your incentive It is also important to note that 1t may take up to 2 3 months for you to receive your check We will call you in a couple of days to answer any questions you might have If you need any assistance please
33. time difference between San Diego CA and Baltimore MD You ll notice a shift 1n the data when you make this change and the days should look more normal We don t typically worry about this unless looking at hourly patterns or matching with other data e g GPS or activity log To clean files affected by time change modify DAT file by either adding an hour of zero counts or deleting an hour of zero counts Accelerometer Manual 26 NM D Screening Data Why do I need to screen data When screening the data you are looking for several things 1 The first is to determine if the data are valid You will see some examples of invalid data below 2 The second is to determine if there 1s enough wearing time in the file to be considered compliant without asking for a re wear It is important to screen the data right away in case you to go back to a participant for a re wear It is imperative to screen the data prior to initializing it for another wearing in case the unit has malfunctioned and you need to take it out of the rotation How to screen data in MeterPlus See MeterPlus User s Manual section 5 Viewing Actigraph files for detailed information about Viewing Files in MeterPlus 1 Find the participant s DAT or CSV file and drag it into MeterPlus It 1s helpful to have the log to look at simultaneously 2 Go to Reports then Header Details to screen for errors f using an older model 7164 or 71256 current memory addre
34. to role play delivery of Actigraph and compliance re wear requests Accelerometer Manual 42 e Provide a checklist of talking points but not necessarily a script Emphasize the importance of details such as serial numbers participant IDs dates etc C Checking Quality Control e The recruitment database should be checked weekly for cases that may have fallen between the cracks e Outstanding units should also be queried periodically and reviewed to be sure that appropriate action 1 being taken to retrieve them When surveys are completed they should be screened for completeness before data entry Multiple quality check points are important to avoid any mistakes in the data Data entry should be done in duplicate or all data entry should be checked by supervisor until a person is certified lt 0 0125 error rate errors keystrokes in survey e Ideally the same person should screen and score all the data Regular reliability checks should be conducted by managers and investigators Managers and investigators should be available to evaluate ambiguous files Remember that nobody becomes an expert in a few months so we encourage and expect staff to consult you about ambiguous files and cases D Electronic Tracking Review the electronic database forms queries reports Accelerometer Manual 43 Examples of recruitment and data collection database forms Participant
35. weight in kgs Browse for the folder that contains your mpd files and browse for the location to save your output Name your output file Score Particpant Age Data for Scoring Participant Age Data Participant Weight Data Leave blank if you dont have an age file Age file for fou have specified to include Kcals the output so participants you need to provide the participant s weight for scoring A Weight file for is participant s age is use the following EENI category group or specify an age A Category Group Adult age 18 to 64 v If a participant s weight is unknown use the following Scoring Folders weight Adult age 18 to 64 hoo NIK age 6 to 11 Weight 100 TEAN age 12 to 15 pu Senior age 55 to 100 Select the folder that you would like to scan to create scoring file C Users Kelli Documents MeterPlus 4 Enter the name of the file that you would like to your scoring file as C Users Kelli Documents MeterPlus 4 DefaultScoring csy For explanations of scored variables and files see MeterPlus User s Manual Section 14 Accelerometer Manual 41 6 Management and Training 7 A Hiring Qualities to look for in Data Collectors When hiring data collectors it is important to look for certain qualities that would make for an effective data collector o The obvious look for data collectors who are r
36. yau afierncon for af feast 12 hours each day cannot begin wearing it by please call 1 877 440 4832 a5 soon as possible If you have any questions about your meter or if you would like your own copy of There i amp no or ewiteh that you need bo worry about timing on or off every day The adin ty meter runs on graph please let us know by calling 1 619 We would be glad to help batbery and is programmed ba nun continuously without you reading fo bum on Please do not try to open Ta SARA Rp Agr 2010 45 meter Example handout for participants Wet page on the left is for wear instructions Ihe page on the right is used to help participants understand compliance expectations Accelerometer Manual 17 m H Recruitment Script Examples Some excerpts from recruitment script We would like you to wear a movement meter for 7 days It is similar to a pedometer except it measures general movement To the best of your ability go about your usual days don t do anything different Try to wear it all the time you are awake The only time you should take it off is when you shower or if you swim because it s not waterproof We would like you to wear it for at least 12 hours of the day If you don t wear it for long enough each day or for enough days we will ask you to wear it again Make sure to put it on first thing tomorrow morning take off last thing at
37. you needing to turn it on Please do not try to open the activity meter Accelerometer Manual 54 How LONG SHOULD I WEAR MY MOVEMENT METER When you send your meter back we will see how many hours you wore it each day If we see that you didn t wear it for at least 7 days for at least 12 hours per day we may have to ask you to wear it again We determine how long you wore the device by looking at a graph that we download from your meter Below are some examples The top graph is from a person who wore the movement meter for a sufficient amount of time The bottom graph is from a person who didn t wear the meter for long enough and had to wear it again 12000 This person did a great job of wearing their meter As you can see on the graph they put it on when they woke up at about 7 30 in the morning and kept it on until about 8 30 at night 10000 8000 Activity This person would have to wear the meter again They put it on when they woke up at about 9 00 in the morning but took it off at about 2 00 in the afternoon 2000 1500 Activity 1000 VR SS S stash ast ath St ast ust ast est qu gat qur que que gah 9 qu 9 d Kd Kd Kd Kd HAA AD PAP d S wh oP e AT oF o e If you have any questions about your meter or if you would like your own copy of your graph please let us know by calling 1 619 XXX
38. you through the process of creating a new file Be sure to use the start date and time from the meter Access database Checking the battery initializing downloading performing any of these functions results in the error activity monitor did not respond First check to make sure that the meter is firmly placed in the carriage and then try it again The Actigraphs are sensitive so sometimes the carriage cannot read the information on the first try If the problems persist wiggle the wires connected to the carriage to ensure they haven t come loose Also you can blow gently on the carriage and try it again sometimes dust or dirt will stop the meter from being read When you place a meter in the carriage to download the red light 1s not rapidly flashing like it should be if it s still recording data The first step 15 always to attempt to download the meter anyway a Ifthe meter still flashes the 1 2 3 sequence it means the meter never initialized in the first place Check the ini file to verify the meter was initialized correctly and for the correct date and time If the ini file is correct this could indicate a serious problem with the computer or software Contact MTI and your IT person to help troubleshoot the problem b If the meter is flashing the slow 1 1 1 sequence it means the meter was either never initialized check ini file or it means the meter 1s full of data and 1s no longer recording The short term 7164 meters record
39. younger children The reason we want to clean these data is so we don t inflate sedentary estimates Sleeping typically records as valid sedentary wearing time 5 Should we summarize data within certain time periods e g morning hours Accelerometer Manual 10 l This is becoming a popular way to look at accelerometer data MeterPlus has a Time Filter feature that will allow you to segment the day and activity levels are summarized within the defined time periods Work time weekends and leisure time such as after work hours are examples of time filters that could be used for PA and sedentary behavior E Tracking ActiGraphs Inventory We always create Microsoft Access databases to inventory and track our ActiGraphs We have found it helpful to create a record for each wearing so we can look things up by participant ID or by ActiGraph serial We also like to look at trends of Actigraph malfunction to identify units that should be pulled out of rotation and inspected The following variables may be useful to create in an Access database O Q OO QO O CO CD 2 OUD OD XO Q 0 Participant ID number Actigraph serial number Recruiter data collector identifier stage wave of data collection including re wear round number of times an ActiGraph has been used date delivered or mailed date activated initialized date battery and or memory will run out useful for prompting date received date downloaded
40. 0 Midjyyyy 5 00 AM v Filter Option Normal 3rd Axis Stop Date amp Time Inclinometer Enable Stop Time Status Information Device Detected GT3X Memory Available 16 MB Battery Voltage 3 91 V Maximum record time based on selected settings 5734d 9h 35m Os Subject Information Mame Not Initialized Up to 16 characters Accelerometer Manual 15 Cancel 11 The program will take a few seconds to initialize Wait while this occurs Sending Initialize Command and Data Status Status Sending Initialize command waiting For reply From hardware BEEN 12 A verification screen will appear Be sure that the dates and times are correct and click ok 13 You may now disconnect the ActiGraph from the USB cable The LED will FLASH until it begins to collect data and then it will turn off NM Attaching the Actigraph to a Belt 1 Belts are made from 4 webbing material and dual adjustable side release buckles The belts can be purchased through Actigraph but we choose to make them ourselves Here 1s the purchasing information for our Source 0 0 Meter Belts 1 black webbing SKU CDC Joann Fabric and 102226 Craft Store online WWW joann com 44 99 50 yards about 0 42 unit Best Buy Button and depending on quantity Belt Buckles 3 4 PH328 Buckle www plastic buckle com ordered 2 Choose the belt size that the participant requested We find it u
41. 0 0 0 0 10 0 0 0 0 643 33 112 0 0 18 0 0 0 10 55 10 0 24 2 0 0 0 3 14 0 371 43 5 0 5 50 23 1073 229 0 20 39 0 43 62 72 117 156 1830 319 27 8 631 230 16 58 6 167 16 31 31 467 134 133 35 134 13 873 130 1446 1060 1104 1048 1009 505 49 2215 174 0 64 32 0 0 0 0 5 0 1572 141 0 0 0 0 44 0 0 0 0 0 0 1285 0 0 0 0 14 52 0 0 0 12 75 0 0 0 0 31 1260 2287 2530 1886 33 153 1 2 56 81 10 73 333 344 543 361 30 201 17 13 10 0 0 0 0 0 0 424 373 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 549 118 1001 423 198 1327 39 348 2048 2933 372 750 665 35 0 0 0 0 0 0 0 0 0 0 0 0 0 102 320 170 0 0 382 53 73 343 50 462 1370 2112 2002 22 403 76 3061 355 0 0 292 0 161 424 316 413 0 16 1302 1908 2012 776 10 533 243 800 1466 1422 2982 2260 1251 1014 1921 1172 785 2090 2250 407 24 n n n n n n n n n n n n n n n n n n n n n Red Flag stopped recording after 5 days This is usually seen with the new models and wouldn t happen if battery were fully charged Most likely not fully charged when it went out or has a faulty battery Test the unit several times before using again Send to Actigraph for repair if problem happens again File Tools Reports Help SACSA Datav4ctigraph TrainingFirstmeterh 76101320 REPEAT dat ef 11 2006 ef 12 2006 2 13 2006 2 14 2006 ef 15 2006 ef 16 2006 ef 72006 ef 10 2006 2 13 2006 ef 20 2006 2 21 2006 222272006 22372006 2 data files from I MeterPlus File Tools SACSA Data vActigraph T Date
42. 0 0 836 0 0 832 0 0 840 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 781 0 0 0 769 0 0 781 0 0 769 0 0 782 0 0 806 0 0 795 0 0 800 0 0 797 n 0 803 0 n ana n n 798 n n ann n n ana n n 913 n lt n Change Valid Value Valid C Invalid OK Change Valid Value Valid Invalid Save Change Close 7 Accelerometer Manual 31 a MeterPlus 3 METS mpo File To SACSA DataNNQLS CSA files TEAN Files dat files 43027900401 2443027900401 2_1 dat ols Reports Help Vald Hours Valid Day Day Of Week 11 27 2009 No Friday Activity 11 28 2009 No Saturday Activity 11 28 2003 0 Sunday Activity 11 30 2003 12 Yes Monday Activity 12 1 2003 1 Tuesday Activity 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 253 116 0 0 0 0 16 0 0 0 0
43. 00 for most of the actigraphs Answer This error before and it usually means one of two things 1 You may have a dead battery that has been dead for a long time When this happens the light will still flash and you may get a misleading reading of 4000 hours You can put a fresh battery in one of the units and try again 2 Your computer is not recognizing the port you have used for the RIU reader USB cord or hub Here is a trick from Actigraph to help resolve this issue Go to your Start Menu Control Panel System Hardware Device Manager expand the Ports and USB controllers and select each one Nothing will change when you select them but sometimes the act of clicking on them will wake them up Close the Device Manager and try again You can also try right clicking on the port go to Properties Port Settings Advanced and change the Port to 2 regardless of what is says currently Restarting your computer is another trick that works sometimes Accelerometer Manual 46 Equipment new models _ ctiGraph Various problems can arise during different stages of Actigraph use With newer models GT3X GT3x most of these problems have been eliminated The common problems we have experienced with these models relate to faulty batteries that don t hold their charge for more than a few days This 1s usually identified within the first few uses of the device and can be sent back to Actigraph for repair u
44. 009 Evenson 2009 and our own in house validation study we have concluded that 60 minutes of consecutive zeros maximizes the detection of sedentary behavior People can sit very still no movement registered on the meter for at least an hour Therefore we are changing our procedure from 30 minutes of zeros to 60 minutes for future studies and re analysis of NQLS Adult and NQLS Senior data The studies we are referring to including our own were conducted in adults It is not clear yet what might be appropriate for seniors but it may be longer than 60 minutes Note this definition makes it very difficult to distinguish non wear days such as mailing WITHOUT MANUALLY SCREENING the data Screening is essential as we have found that more than half of mail days will have gt 10 valid hours using 60 min of zeros With the new models this is not really an issue NM L When do you need a re wear l The participant did not wear the Actigraph for enough days In this case the recruiter needs to call the participant and see 1f they will wear the Actigraph again and fill out another log to make up for the missing data Accelerometer Manual 34 The participant wore the Actigraph for enough days but for not enough valid hours in each day In this case the recruiter needs to call and have the participant wear the Actigraph again and fill out another log for how many days they re missing Emphasize that the Actigraph needs to be worn the entire day
45. 1507 13010 21507 13040 32766 21507 10044 4819 21507 8002 21507 16368 31231 12243 591 21507 1 22 1300 828 13008 2 21507 7491 3137 12306 10952 16787 0 548 24131 316 20035 24243 1 23 1300 8146 28675 3987 1056 12857 28163 12867 28675 11587 15424 9475 12306 10962 15680 769 1 24 1900 2322 1554 1810 1042 1298 12674 1612 1357 3141 3395 12306 16606 6726 17920 2650 1 25 1900 7759 1024 8015 1535 12306 27968 2124 2381 2638 2895 7750 17920 3678 3678 3678 1 26 1900 7503 512 7759 1024 8015 1536 12306 27968 332 0 333 512 334 1024 335 1 27 1900 6977 1536 12306 5341 322 0 333 512 334 1024 335 1536 5971 18239 8006 1 28 1900 28385 3219 3108 11329 7489 512 7745 1024 8001 1536 12306 9924 12306 25788 2876 1 23 1900 1 30 1900 gt Red flag Valid Value Valid Invalid Save Change Close Meter malfunction examples Daily Info for Monday June 06 2005 Daily Info for Saturday June 01 2002 Number of Data Points each Hour 60 Number of Data Points each Hour 60 Change Valid Value Valid Invalid DK Daily Info for Monday September 01 2003 Number of Data Points each Hour 60 i Daily Info for Wednesday May 05 2010 Number of Data Points each Hour 120 0 0 0 0 0 0 0 0 0 0 0 0 811 0 0 818 0 0 814 0 0 818 0 0 0 0 809 0 0 818 0 0 809 0 0 821 0 0 0 0 817 0 0 823 0 0 820 0 0 824 0 0 0 0 818 0 0 823 0 0 818 0 0 829 0 0 0 0 820 0 0 829 0 0 819 0 0 828 0 0 0 0 827 0 0 837 0 0 828 0 0 836 0 0 0 0 832
46. 3 sequence Also verify the countdown time until initialization 11 When an Actigraph is initialized an INI file will be created in the files folder and will contain all initialization information Do not erase or remove this file as the Actigraph will not download unless this file is kept in its initialized folder location 12 Take note of the battery life for the meter Access database remove the Actigraph from the reader and press OK Accelerometer Manual 14 E Initializing new models only l Once all ActiGraphs are fully charged then you can begin the initialization process The Actilife software amp drivers must be installed on your computer but unlike with the older models the meters don t need to be initialized and download on the same computer Connect the Actigraph to the USB port by opening the rubber cover protecting the USB outlet on the ActiGraph unit and plugging the small end of the USB cord into this outlet making sure that no other ports are being used and open the Actilife software On the main Actilife page go to Options then select Device Information When connected properly the software will recognize that a device 1s connected Click OK to continue Verify that the device is fully charged over 4v before initializing Go back to the main page and click the Start icon This will bring up the initialization screen Make sure that Activity Default mode has been selected You can select
47. ID First name in 7 Date 1st vist Date 2nd vist Next Call or Action Code final outcome SEE visit Other name Comment po Addres Date 3rd visit Date 4th visit an Time 3rdvist 4 Telephone 4 Click for Data Collection Screen Outcome 3rd visit Outcome 4th visit Alternate phone dog a Gender Date 1st vist Date2ndvist Datetstvist Belt size Time 4st vist Tmeistvst Time2ndvist Recruiter Outcome 1st vist 7 Outcome 2nd vist 7 Outcome tstvist 7 Outcome 2nd vist 7 Data collector S Comment Comment Comment Between 18 and 65 Live 3 months Disability Date 3rd visit Date 4th visit Date 3rd visit Date 4th visit Eligible Time 3rd vist Tmeathvist Time 3rd vist Time 4th vist Dicen Sd uli Outcome 4th visit mmm Outcome 3rd visit Outcome 4th visit Consent Meter Comment Comment Comment Comment Consent date Reason for refusal Data Collection Meter serial number Second Call Second Call Date meter delivered 1st Call Date 22 Call Date 1st Call Date 2 Call Date Rewear serial number 1st Call Time 2nd Call Time 1st Call Time 2nd Call Time Date rewear meter delivered 1st Call Outcome 2nd Call Outcome 1st Call Outcome 2nd Call Outco Comment Comment Comment Comment 3rd Call Date 4thCallDate 3rd Call Time 4thCallTime 3rd Call
48. Outcome 4th Call Outcome Meter valid days Comment Comment Comment Comment Need rewear 1 ss Date rewear meter received Valid days rewear Asking for rewear t Valid days total 1st Call Date 2nd Call Date 1st Call Time 2nd Call Time Retrieval Date survey retrieved Survey complete Third Call Fourth Call 3rd Call Time 3rd Call Outcome 4th Call Time 4th Call Outcome Date Meter received Date survey entered 3rd Call Date 4th Call Date Incentive 1st Call Outcome 2nd Call Outcome comments comments Date payment sent Lost meter 3rd Call Date Meter lost 3rd Call Time Meter serial number 3rd Call Outcome comments Copies of tracking and recruitment Access databases are available upon request Accelerometer Manual 44 7 Troubleshooting A Equipment older models Below are some of the more common occurrences l 3 Downloading the older model Actigraph results in the error that the ini file for this meter 1s missing If you think that there should be an ini file for this meter choose CANCEL to try to locate the original file If it is not available you will need to create a new file using the start date and time from the meter Access database Press OK to create a new ini file you will receive a notice that the file may not be exactly as the one initially created for this monitor The program will lead
49. XXXX We would be glad to help Accelerometer Manual 55 m ES Meter Log Wear the movement meter for seven 7 consecutive days In the table below write down the dates and days on which you wear the meter Note the times including a m or p m that you put it on and take it off during each day Also note the reason you took it off Below is a sample entry Feb 26 2005 Saturday On 7 30 AM 1 00 PM 1 45 PM 10 45 PM Day We have included extra spaces rows in case you need to take off the meter during the course of the day If you take the meter off for more than 5 minutes such as showering record when you take it off and put it back on If you are unable to wear the meter for seven 7 consecutive days add additional days at the end of the week FOR OFFICE USE ONLY Serial Number Date Initialized Participant ID Recruiter Valid Days METER COVER LETTER Dear Participant Thank you for participating in the name Study We appreciate your interest and hope that your involvement will be a positive experience Enclosed you will find a movement meter You will wear it for seven complete days beginning when you wake up tomorrow morning Here are a few things you should know e Please take care of the meter It contains valuable information that is important to our study e tis not waterproof but 1s water resistant So it should not be immersed in water so please don t wear
50. a Daily Info for Thursday August 22 2002 AA 1 Number of Data Points each Hour 60 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 a 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 198 164 344 148 311 108 207 fis 14 06 22 58 127 260 95 20 37 TI 211 12 24 0 10 0 4 11 0 0 0 0 6 4 0 5 0 0 8 8 2 0 0 0 0 0 0 87 2 0 195 315 0 11 15 20 19 13 71 49 4 6 5 0 253 1131 951 182 251 6 1480 83 90 11 0 162 269 83 0 280 16 96 194 138 28 150 426 12 513 173 246 39 202 15 195 132 223 382 196 45 101 82 1233 7 1213 3832 0 0 0 0 0 0 0 12 423 469 1133 488 392 197 816 834 1063 900 386 760 208 537 90 160 265 1079 558 1332 1090 862 453 873 1338 1963 2133 1U 3 64 1093 147 20 70 62 334 531 846 1231 768 153 385 1634 1898 209 539 2076 2167 22275 310 321 3136 26 5 616 525 772 132 149 125 33 49 99 98 490 638 261 126 34 544 1022 319 239 310 15 0 1 26 83 38 0 43 7 0 0 1 2 0 0 0 0 0 0 127 0 0 0 9 0 0 28 2 0 0 1 104 0 0 0 0 0 6 0 n n n n n n TIR 314 agad RRA 242 419 291 159 4 m F Typical Wearing Day There are rows of zero counts during sleep and the activity starts at the 7th row or 7am There are low counts throughout but they are sporadic and they re not consecutive This is a very typical pattern and would likely have 13 or 14 valid hours of wear F Invalid Wearing Time Examples
51. ail Delivery Retrieval Method Mail Mail Mail Mail Actigraph Model 7164 71256 7164 71256 7164 71256 Valid Wearing Compliance Compliance Time Guidelines 5 valid days lt 45 minutes of consecutive 0 counts per hour 5 valid days lt 30 minutes 5 valid days lt 60 minutes 5 valid days 1 weekend 30 minutes 3 valid days lt 30 minutes 6 valid days 1 weekend lt 20 minutes 3 valid days lt 20 minutes with 1st wearing 81 0 after rewears 96 5 Return Equipment Time median mean 20 EVA 26 6 days 20 32 0 23 32 3 19 days 28 6 days Device Loss Rate Malfunction Rate 2 6 Accelerometer Manual 64
52. aily Info for Thursday January 11 1900 Number of Data Points each Hour 60 Tuum 0 14080 16 16 20704 15616 4320 16128 31966 16384 1706 16896 21690 17152 27326 17734 65 16963 17477 17991 18432 0 770 3 768 772 2 1280 520 2 1 8 1900 24 0 3802 19 1024 4386 4 31572 25729 29472 26995 8289 8277 16722 21536 29810 1 3 1300 24 5892 17 13532 0 0 272 0 0 0 528 0 0 0 769 7900 121021900 24 23588 15936 28160 12306 3299 12306 214 12306 6371 3602 3858 7756 1536 3678 16016 1 11 1900 24 1810 1554 2066 2322 2578 2834 3346 3999 6184 3616 7590 1024 1024 4904 2336 1 12 1900 24 15140 16272 8446 12332 3656 2121 2378 2635 2883 16208 2 12324 16272 8446 8492 1413 1900 24 12097 3935 12257 16304 128 22820 16099 7763 16205 3950 2127 16205 3961 2383 12109 1 14 1900 24 544 8531 15932 2207 29999 14144 6 2888 2115 1887 2136 2409 2666 2923 3007 151900 24 1060 6227 2403 2659 2915 3144 0 3145 512 3146 1024 3147 1536 15681 15169 1 15 1900 24 579 18947 8002 20493 3971 2852 8057 3876 8067 6948 8067 13348 8067 21796 8067 1477900 24 18435 16963 22019 7231 14992 6144 800 21053 22019 5695 17043 22019 1060 15072 16384 1718 1900 24 572 17043 22275 4900 8002 18435 20042 20446 14339 16963 22275 8002 19495 8019 591 1131890 24 8067 8740 12163 8996 8067 11044 8067 14116 14396 12944 10495 20995 808 12306 5334 nnam 12866 19971 572 12866 19971 12946 19971 548 23619 316 19523 14913 12353 9579 12306 inam 26684 4803 21507 8002 21507 15368 31231 12243 581 21507 12994 21507 13040 32766 2
53. alid hours for all of our adult and senior studies However for NQLS Adult and NQLS Senior scoring a valid day contained at least 8 valid hours For IPEN we are using 10 valid hours for both compliance and scoring Should we have different valid wear time criteria for weekday vs weekend days No we don t for adults and seniors although we reduce the usual 10 hour criterion to 8 hours on weekends for adolescents What software should we use to screen and score the Actigraph data We use MeterPlus www meterplussoftware com for all of our studies What epoch should we use The meter collects samples acceleration data 30 times every second and then sums them across a period of time referred to as an epoch The resulting value is referred to as a count For adults and seniors we analyze our data using a 60 second epoch which is generally accepted for this population and is consistent with the calibration studies that most cut points were derived from However many of the new algorithms use shorter epochs and since it is easy to aggregate up and impossible to reduce down we now use the shortest epoch that the Actigraph memory will allow With the newest model the device collects raw data and the epoch applied after data are downloaded This provides a lot of flexibility so we will reintegrate to 60 seconds for applying cut points and still have the ability to use shorter epochs for other purposes e g pattern recognit
54. art Time for Participant s Time one HH actual meter start hour in 24 hour time 0 start minutes are read from the file header Same Day C Next Day C Previous Day Configuration Setting Description Hours required for a valid day The minimum number of valid hours recorded in the raw data file for a day to make the day valid This can be overridden by double clicking on a day in the day view list of the Main application window and forcing a day to be valid or invalid MINUTES of consecutive zeros to define non wear time The Actigraph records an activity count per epoch period It will record a 0 if there was no movement If there are at least as many minutes in a row consecutive as this value then it is considered non wearing time Actigraph Start Time for MeterPlus will read the start time from the header of Participant s Time Zone the file and there is no need to make adjustments unless the unit was initialized in a different time zone from where data were collected For example If a unit is initialized in the Pacific Time Zone and sent to the Eastern Time Zone an adjustment of 3 hours should be made by adding 3 hours to the actual start time in the header If the header indicates a midnight start time 0 00 00 the start time should be changed to 3 When screening or scoring files from Baltimore the Meter Start Time for Participant s Time Zone should be changed to 3 to account for the
55. at the different models are comparable when Freedson 1998 MVPA cut points are applied John 2010 Corder 2007 however it has been suggested that there 1s less comparability on the lower end of the spectrum Kozey 2010 Rothney 2008 Our studies in free living adults and youth are showing that the single axis data are comparable between the new models 1 GTIM vs GT3X GT3X but are not comparable between the old 7164 and new models in sedentary light or moderate intensity 100 cpm for sedentary and Freedson 98 for light and moderate However when the Low Frequency Extension 1 applied to the data from the GT3X the differences are no longer significant papers in process Our studies indicate the ActiTrainer by ActiGraph is comparable to the new models at all intensities We do not yet know the compatibility of the Actical Respironics MiniMitter with these Actigraph models but our colleagues in New Zealand are conducting analyses to help determine this 7164 This is the oldest model and is sometimes referred to as CSA or MTI monitor It has a 22 day memory when used with 60s epoch and collecting activity data only If collecting step counts or using a 30s epoch the memory 1 reduced to 11 days It runs on a coin battery that lasts approximately 6 months This model 1 initialized and downloaded using an RIU reader and either DOS or Windows based Actisoft software This model requires periodic calibration The calibrator is a separ
56. ate piece of equipment This model 1s prone to developing a battery holder malfunction that occurs about 5 of the time It causes the device to stop 7164 and 71256 collecting new data This model was used in our NQLS Adult NQLS Senior later models came in and IPEN studies red and blue Pros Long battery life often acquired at low cost Cons Short memory unit malfunction more common no longer supported by MTI so can t be repaired requires calibration 71256 This was a newer version of 7164 that had increased memory 91 days with 60s epoch and activity only Everything else 1s the same as the 7164 model This model was used in our NQLS Adult NQLS Senior and studies Pros Memory increased often acquired at low cost Cons Unit malfunction more common no longer supported by MTI so can t be repaired requires calibration The 7164 and 71256 are referred to as older models throughout the manual Accelerometer Manual 5 The GT1M and GT3X look is identical The GT1M GI3X and GI3X are referred to as new models throughout the manual The GT3X looks similar but has a more secure USB plug The uses new accelerometer technology It has a rounded casing and is initialized and downloaded using a USB connection and Actilife software all new models work with Actilife It has a rechargeable battery that lasts about 14 days It has IMB of memory 340 days with 60
57. cipants will be instructed to wear the unit all day while they are awake The only times they should remove the units are when they go to bed at night or if the unit would become completely wet e g swimming showering Instructions are mailed to participants along with the meter log describing how to wear the device see full copy in Appendix These instructions should also be explained in person or on the phone The graphs on the right are used to help participants know what we look for when deciding on the need for a re wear This helps compliance how to Wear the Activity Meter HOW LONG SHOULD I WEAR MY MOVEMENT METER This amall meter records general movement and allows to get a better idea af your overall actwdy level Wve wall not be able to tell what kind of specific activity 15 happening Al first the belt may feel slightly awkward but after a few hours you will probably get used to it and not When you send your meter back we will see how many hours you wore it each day we see that you didn twesritforstlesst7 days for atleast 12 hours per day we may tas much Eis extremely important For our study that you wear the meter properly If it is ini n not wom properly we may have te send it back for you bo wear again Please follow these We determine how long you wore the device by looking st s graph thst we download from instructions carefully your meter Below some examples The top graph is from
58. el general updates and new references Revised July 2011 to update IPEN scoring protocols based on our sedentary validation study and to update references Revised June 2010 for IPEN accelerometer trainings with new Actigraph models only co authored by Dr Simon Marshall NIH National Cancer Institute R01 CA127296 PI James Sallis Co investigators Owen N De Bourdeauduy I Conway T L Kerr J Adams M Revised September 2004 to adapt for Senior Neighborhood Quality of Life Study NIH National Heart Lung and Blood Institute RO1 HLO77141 PI Abby C King Co investigators Sallis J F Conway T L Frank L D Saelens B E Kerr J Original protocol developed in 2002 for the Neighborhood Quality of Life Study NIH National Heart Lung and Blood Institute R01 HL67350 PI James F Sallis Co investigators Conway T L Frank L D Saelens B E Slymen D D For questions contact Kelli Cain kcain ucsd edu oo NEIGHBORHOOD EGE BORMOOD OF LIFE STUDY L FLIF FOR SENIORS E STUDY Accelerometer Manual 2 Table of Contents 1 Prepatine for Acapbxaph Data Collection 25259916 5 ME Sine HEEL SUL OTT 5 D Inventote INEEOUS i s eoo essa 6 Oir RE E 7 1 8 E Tracking Actigraphs
59. eliable trustworthy and hard working o Resilient they can t take rejection personally o Personable likeable outgoing o Come across as professional and knowledgeable o Ability to think on their feet o Not as easy as it may seem o Remember that data collectors may be interacting with participants so it 1s important to have data collectors who participants feel comfortable with A data collector who possesses these qualities and comes across as a professional would be a great addition to the team Qualities to look for in a Data Manager The main role of a data manager 15 to manage data collection efforts and to monitor that data are being collected according to protocol e Attention to detail e Invested in getting quality data above all else e Organized can manage incoming outgoing re wears screening calls from participants questions from data collectors at the same time e Confident to make decisions based on training amp experience but not so confident that won t ask for a 2 opinion e Comfortable looking at numbers figuring out the puzzle e We have atest exercise we use when hiring to try to assess these qualities in potential candidates B Delivery and Compliance Training As part of their training data collectors must wear an Actigraph for several days This allows the data collectors to speak from experience when interacting with study participants Provide opportunities for data collectors
60. elow write down the dates and days on which you wear the meter Note the times including a m or p m that you putit on and take it off during each day Also note the reason you took it off Below is a sample entry 7 30AM 1 00PM 145PM 10 45 PM We have included extra spaces rows in case you need totake offthe meter during the course ofthe day If you take the meter ck on off for more than 5 minutes such as showering record when you take it off and put it back on f you are unable to wear the meter for seven 7 consecutive days add additional days at the end of the week FOROFFICE USE ONLY Serial Number Date Initialized Participant ID Valid Days Example of meter log to be given to participants to help data decisions and improve compliance Accelerometer Manual 20 Reminders to put Actigraph next to bed or with cell phone someplace where they ll see it every morning e Offer incentive usually 15 USD for Actigraph but subject to providing enough valid data B Prompting Procedures Following these procedures has been shown to result in 1 month mean return time MC Meter Check Call MR Meter Reminder Call MP Meter Prompt Call Standard 7 day wear contact schedule Length of time before next contact 1 Make your MC call the day you expect Schedule your next call for 3 days later your participant to receive the meter 2 Make your MR call to check in again a
61. erate 3300 5724 Vigorous 5725 2 Should we analyze patterns of PA such as bouts If so how should we define them We haven t analyzed bouts in our studies but a 10 minute bout of MVPA with a 2 minute allowance is common Sedentary bouts is becoming more popular also and MeterPlus version 4 3 is able to do this We are planning to analyze sedentary bouts in both the NQLS Adult and NQLS Senior data in 2012 3 How should we deal with participants who have varying days of data collected Some researchers impute values or use probability statistics Catellier 2005 Troiano 2008 but we choose to create a mean activity score across valid days In some analyses we use wearing time to statistically adjust for these differences This seems to make a big difference with sedentary outcomes in our NQLS Senior data as the differences in wearing time are likely sedentary activity We focus a lot of time and resources on strategies to boost compliance to maximize each wearing time opportunity and use re wears when necessary 4 How should we deal with participants who wore the Actigraph 24 hours per day We have a cleaning protocol to screen for overnight wearing using a maximum hourly count during overnight sleep hours Then the pattern of data can be identified through visual inspection and the count values during sleep replaced with 0 values in the CSV files This has not been a big issue with adults and seniors but common in
62. es 31 G e uic nod ms 32 H Meter Malluncpon ESSIDDIeS Aa 32 1 Mean Adress 34 EE CADO 09909 35 Valid Wear Time Criteria c ccc cece ccc ccccccccccccccccccccccccecs 35 L WHEN do VOU need Te WOSE 36 M Eea tre PENES 37 Accelerometer Manual 3 5 Chean no and Scotti DUE 38 A Configuring MeterPlus to Clean 38 B Selecting Days to be Scored Creating MPD files 40 C Preparing Re wear files for Scoring eroris 40 D Configuring MeterPlus to Score Data eee 41 E eirca Meet 43 6 Manasement and CANINO 44 Dis EE ILIUM 44 Delivery and Compliance Training 44 Seek Quality Gonttol 45 D 45 Te UR s M 47 A Bquipmehbt older MOdElS ssi anire 47 p Egutpment new models irri 93 RR 49 MeterPlus Questions 49 D IPEA
63. files that will be scored with the same scoring options should be placed together in the same folder Accelerometer Manual 37 E B Selecting Days to be Scored Creating MPD files When the wearing days have been selected and any desired overrides to the valid day criteria have been made these days will need to be saved as an MPD file by clicking on the Save Selected Days button If all days are to be saved the user can click on the Save AII button A message will confirm how many days were saved and the location of the file The location of the MPD files 1s selected 1n the Score Data tab Note that valid and or invalid days can be saved to this file The valid or invalid designation is used to code each day as a valid or invalid day in the final output The user selects whether to include invalid days of data in the output in the Score Data tab This selection is applied during the batch scoring process not here meterPlus default mpo File Tools Reports Help C Documents and Settings kcain ALA My Documents 324025042 PLUS Rts Date ValidHous Valid Day Day Of Week 1 31 2009 No Saturday 2 1 2003 0 Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sunday Monday Tuesday Wednesday 2 10 2003 2 11 2003 Get Total Vaid recommend saving ALL WEARING TIME not just valid days at this stage EE C Preparing Re wear files for Scoring Seles 2 j 8 days were successfully
64. for our study that you wear the meter properly If it is not worn properly we may have to send it back for you to wear again Please follow these instructions carefully Wear the meter attached to the belt around your waist just above your right hipbone You can wear it either underneath or on top of your clothing Wear the meter so that the star sticker is facing up Wear the meter Snug against your body If you have to you can adjust the belt by pulling the end of the strap to make it tighter Or to loosen the belt push more of the strap through the loop Wear the belt tight enough so that the meter does not move when you are being active Please put it on first thing in the morning either just after you get out of bed or just after you shower or take a bath in the morning Do not submerge the meter in water swimming bathing etc Keep the activity meter on all day unless swimming or in the water At night take it off right before you go bed You should be wearing the meter for at least 12 hours each day Do not let anyone else wear it The meter has a very short battery life The last full day that it will work is If you cannot begin wearing it by please call 1 877 440 4832 as soon as possible There is no ON or OFF switch that you need to worry about tuming on or off every day The activity meter runs on a battery and is programmed to run continuously without
65. g value 999 Zeros nw an De raniaced X flere iz a ning Par meer fhe above fo make an mea Output Totals and Daily for Valid and Invalid Days Parameter Activity Directory to mpd files ICAD acuments and Settingeshparada D esktep HP Actigraph s Save Save and Close Exit Configuration Setting Description Hours required for a valid The minimum number of valid hours recorded in the day raw data file for a day to make the day valid for scoring purposes MINUTES of consecutive The Actigraph will record a 0 count value for an zeros to define non wear epoch if there was no movement This setting will time cause MeterPlus to replace a zero count value with the Replace strings of zeros setting value if at least this number of minutes of consecutive zero counts were recorded This is so the correct differentiation is made between a not wearing and a sedentary but wearing value Value to use for undefined Data files being processed in the same folder can have field varying amounts of data in them This setting determines how to deal with the missing hours or days of data User can select NULL or another missing data value Replace strings of zeros with Zero counts that have been classified as not wearing the following value default by the Number of zeros in a row to define non wear Accelerometer Manual 36 is 999 do not change time setting are
66. iods from Accelerometer Habitual Physical Activity Children And Exercise XXV Choi L Liu Z Matthews C Buchowski M 2011 Validation of Accelerometer Wear and Nonwear Time Classification Algorithm MSSE 43 2 357 364 Actigraph model comparisons Corder K Brage S Ramachandran A Snehalatha C Wareham N Ekelund U Comparison of two Actigraph models for assessing free living physical activity in Indian adolescents J Sports Sci 2007 25 1607 1611 John D Tyo B Bassett DR Comparison of four ActiGraph accelerometers during walking and running Med Sci Sports Exerc 2010 42 2 368 374 Kozey SL Staudenmayer JW Troiano RP Freedson PS Comparison of the Actigraph 7164 and the Actigraph GT1M during self paced locomotion 2010 Medicine and Science in Sports and Exercise 42 971 976 Rothney M P Apker G A Song Y and Chen 2008 Comparing the performance of three generations of ActiGraph accelerometers J Appl Physiol 105 1091 1097 Accelerometer Manual 50 9 Study specific Guidelines INTERNATIONAL PHYSICAL ACTIVITY AND THE ENVIRONMENT NETWORK Sample For IPEN the minimum sample size for valid accelerometer data 1 250 Valid accelerometer data 1s described below The sample should vary by walkability with roughly equal numbers in each walkability category and with a relatively equal gender distribution Recruitment should occur simultaneously in high and low walkable
67. ion 12 Should we collect any additional data e g step counts How should we process it use 1t We don t typically collect additional data but MeterPlus version 4 2 and newer can now process data from multiple axes step counts and inclinometer data GT3X and only There has been one calibration study conducted with adults on a treadmill to come up with cut points for the composite score of the three axes Vector Magnitude Sasaki 2010 The values are for the Vector Magnitude are Light gt 2490 Moderate 2491 5944 Hard 5945 10 536 Very hard gt 10 536 Accelerometer Manual 9 Post data collection 1 Whatcut points should we use For adult and senior studies we use the Freedson adult cut points Freedson 1998 and the 100 cpm sedentary cut point Here are the adult categories programmed in MeterPlus in counts per minute e Sedentary 0 100 Light 101 1952 Moderate 1953 5724 Hard 5725 9498 Very hard 9499 16000 Out of range 16001 100000 optional MVPA For NQLS Senior we also used alternative cut points that we derived based on a few previous studies Pruitt 2008 Sallis 2009 We wanted to examine associations with lower intensity PA levels in seniors while still maintaining standardization for comparison with the NQLS Adult sample See memo in the Appendix for more details Here are the cut points we used Sedentary 0 100 Low Light 101 929 High Light 930 1952 Low Moderate 1953 3299 High Mod
68. ith a person but not being worn Accelerometer Manual 29 MeterPlus4 ActiGraph Version BEES Fil nis m eps 2002 Date Valid Hours V alid D ai 0 0 0 0 0 0 0 0 0 0 0 0 0 8715 2002 11 Yes 7 A x 3 5716 2002 0 No 0 D 0 0 0 T T T 0 0 0 0 0 0 97122002 0 7 0 0 0 0 D 0 0 0 0 T 0 D 0 g 18 2002 12 es 0 0 0 0 0 0 0 0 0 0 0 0 8 13 2002 17 Yes 0 0 0 0 0 0 0 0 0 0 0 8 20 2002 13 Yes 0 0 0 0 0 0 0 0 0 0 0 8 21 2002 15 Yes D D 0 0 4 0 5 0 0 0 0 0 0 0 B 22 2002 17 Yes 127 1 0 0 1 0 0 0 0 0 0 0 0 0 8 23 2002 12 Yes 0 0 0 0 0 0 0 0 0 0 0 D D 0 872422002 2 Ma 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 25 2002 10 Yes 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 D is D 0 0 0 0 0 0 0 0 0 0 0 0 0 n a 5 No 0 0 0 0 0 0 0 0 0 0 0 0 0 0 30 0 9 16 2 2 23 B 14 0 10 23 11 0 0 16 7 0 0 9 1 0 13 B4 T 13 2 0 110 20 21 11 0 0 0 95 16 123 1 0 0 0 0 0 0 0 32 B2 1 7 35 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 n n n n n 18 E 15 n n 163 E Jn Non wearing day 2 Shows 10 valid hours in MeterPlus but opening the raw data show that is likely a mail day There are low counts and an abundance of zeros that do not follow the typical wear time pattern Also the day is after the cluster of wearing time separated by a non valid day and 1 day prior to download all indicators of mail time 9 28 2007 3
69. ls only The old models run on a lithium coin cell battery CR2430 3 volt that last approximately 4000 or between 5 and 6 months It depends somewhat on the frequency of data downloads and the capacity of the particular manufacturer s battery You have to keep track of when you change the batteries and schedule the next rotation You trust the battery life reported by the software From Actisoft User s Manual To replace the battery follow these steps carefully Reliability of the ActiGraph can be greatly affected if battery replacement is not carried out properly good quality 0 Phillips head screwdriver is required We purchase ours at Sears 2 Carefully remove the four screws on the back corners of the ActiGraph After all four screws have been removed carefully pry off the plastic cover to expose the battery and holder It 1s helpful to use one of the loose screws to extract the cover This 1s done by catching the threads in one of the holes and pulling away from the case Caution Do not attempt remove the circuit boards from the metal box or touch the sensor Touching the sensor even lightly can damage it 3 Remove the battery by inserting a small common blade jeweler screwdriver between the battery and the center of the battery holder opposite the leaf spring Do not pry on the plastic nibs that hold the battery in This will cause damage to the battery holder Note that this terminal position 1 near the sensor Use
70. me Min Value Max Value JAdult age 20 to 100 Not wearing 999 999 Sedentary 0 100 Light 101 1952 Moderate 1953 5724 Hard 5725 9498 Very hard 9499 100000 Add Category Edit Delete Save Save and Close Exit Filename 1 MeterPlus Options View Data Score Data Categories Varlables Bouts kCals Filters Parse data file name inta variables Begin parsing for variables after the last E character source data file name ta Filename Sample file name Variables Add Variable for 5 9 City 0 1 Neighborhood 1 3 Walk ability 3 4 Grou 4 5 E 5 9 Save Cancel Accelerometer Manual 39 Bouts Bouts of activity are sustained periods of elevated counts to identify exercise times MeterPlus will provide information on bouts of activity such as the frequency when the bouts occurred and how long they lasted The user can designate the intensity that must be maintained the minimum length of the bout and the tolerance for gaps within the bout 99 MeterPlus Options 10 minute bout View Data Score Data Categories Filename Bouts kCals FF Include Bouts in output Moderate activity lower Bout length minutes fo threshold cut point for Lower limit activity count 1953 adults Freedson for 60s Upper limit activity count 5724 epoch Tolerance minutes 2 Moderate activity upper threshold cut point for adults Freedson for 60s
71. message with you Leave message with phone number and reminder If person is on the phone Hi participant s first name I m calling to make sure everything is going okay with the meter and survey e finthe mail When did you mail it if less than five days ago Great it could still be in the mail look for it in the next few days Set call back date for when it s expected to arrive e If participant can t find lost the activity meter The meter is extremely valuable to us and to our research Please look for it and call you back in a couple of days to see if it s been recovered Set next call date for 2 3 days later e If participant hasn t started wearing the meter Unfortunately the meter runs on a battery with a short life so you ll need to send it back We will send you a new meter in the mail when we get this one back from you e Answering Machine Message Hi this is recruiter s name from the study name calling for participant s name calling to make sure everything is going ok with wearing your meter and to remind you to return it using the prepaid envelope as soon as you have completed your week of wearing The meter contains very valuable data from past participants so please remember to bring it with you to the clinic If you have any further questions please call us at toll free or local number Thanks and have a great day e E mail message if appropriate Dear participant
72. meter If participant That s great Do you have questions about wearing the meter How IS wearing the about completing the log I will check back in a few days to see how meter things are going Call me at local number if you have any questions Terminate call If participant As we discussed the meter runs on limited battery life I m concerned has NOT because if we don t have enough days before the battery runs out you started will need to re wear the meter Is it possible for you to start wearing it wearing the tomorrow morning Don t forget to also fill in the log I will check back meter in a few days to see how things are going Call me at local number if you have any questions Terminate call 3 Meter Prompt Call MP1 MP2 MP3 The first Meter Prompt Call MP1 should be made 5 days after placing the Meter Reminder call This call is intended to reduce turnaround time for meters The call should be made when we expect the participant to have finished his her seventh day of wearing the meter Accelerometer Manual 22 Key points reminder to send back other participants waiting for the meter If the participant has provided an email address this can be used to prompt the return of the meter However the first MP should not be a text or email unless the participant can t be reached by phone Hi this is First Name from the study name Is participants first name available If no May I leave a
73. n This envelope can be placed inside a bigger 9 x12 manila envelope along with any other study materials Depending on the weight of this package it may be able to be dropped in any postbox 2 Using Click Ship go to https sss web usps com cns landing do a Create an account and add both your return address and the participant s address to the address book Make sure to check get track and confirm notifications via email and enter your email address for both your and the participant s address This way you ll receive all shipping notifications for this package both when it is first sent and when it is returned b Use a flat rate USPS envelope to send all of the appropriate study materials These envelopes can be sent at one flat rate regardless of how much it weighs Make sure that the Actigraph is sent in a padded envelope that will serve as the participant s return envelope c A Follow the instructions on the Click Ship site to create two labels for each package one to the participant to be affixed to the flat rate envelope and one return label to be affixed to the puffy return envelope d USPS will schedule a pickup of these packages or they can be dropped off at a post office for delivery We haven t found it cost effective to purchase insurance for the Actigraphs but this 1s an option with the Click N Ship Accelerometer Manual 19 5 Compliance Tips and Prompting Procedures Compliance Tips
74. n your filenames Just let us know when you send your files so we can decipher it Biking What about biking How will we capture this activity if the accelerometer doesn t pick it up well We recommend asking participants to complete a bicycling log Ask each participant to record the amount of time they spent bicycling each day they wore the accelerometer This self reported bicycling measure may be used in analyses since this activity 1 largely missed with the accelerometer Accelerometer Manual 52 Other software options Other software packages besides MeterPlus will work if they can meet the following criteria allow for screening for wearing time for compliance and re wear decisions allow for manually exclusion of mail or other non wear days clean non wearing time from sedentary time define non wear time as a 10 hour valid day and 60 minutes of consecutive zeros provide the IPEN variables of interest in the output such as total total sedentary time valid days valid wearing hours etc Accelerometer Manual 53 m 10 Appendices B how to Wear the Activity Meter This small activity meter records general movement and allows us to get a better idea of your overall activity level We will not be able to tell what kind of specific activity is happening At first the belt may feel slightly awkward but after a few hours you will probably get used to it and not notice it as much Itis extremely important
75. nd Schedule your next call for 5 days later make sure the participant started wearing the meter 3 Make your MP1 call first prompt call 8 Schedule your next call for 1 week later if you days after the MC call speak with them or leave a message 4 Make your MP2 call Schedule your next call for 1 week later If participant is local offer to pick up 5 Make your MP3 call and send an email if Schedule your next call for 1 week later possible 6 Make your MP4 call and mail a return Schedule your next call for 1 week later envelope 1 7 Make your MP5 call Schedule your next call for 1 week later 8 Make your MP6 call and send an email if Schedule your next call for 1 week later possible 9 Make your 7 call Schedule your next call for 1 week later 10 Make your MP8 call and mail another Schedule your next call for 2 weeks later return envelope 2 Schedule your next call for 2 weeks later and return envelope continue calling for at least 6 months 15 At this point the meter has been out Continue calling if you have had contact with for at least 6 months and 3 envelopes participant and think continued attempts will have been sent Consult a supervisor help A reward letter is an option but only if about the next steps nothing else helps The reward is usually comparable to the incentive they would have received for completing the study Accelerometer Manual 21 p C Call Descriptions and Scri
76. nder warranty The Actigraph Operation Manual is sometimes helpful For problems cannot be resolved e mail device support at support theactigrpah com or e mail the Actigraph technical representative directly John Schneider at john schneider theactigraph com Also the website of Actigraph is http www theactigraph com MeterPlus Questions pj a gt Questions about the use of data screening or scoring using MeterPlus may be answered using the MeterPlus User s Manual You can also contact Cain at kcain 9 ucsd edu If you are interested in purchasing MeterPlus or in our data collection and scoring service you can visit the website at www meterplussoftware com m D IPEN Questions If you have questions about the IPEN accelerometer protocol or general IPEN procedures contact Kelli Cain at kcain Q ucsd edu If you are interested in joining IPEN contact jkerr ucsd edu The network wide website be accessed at www ipenproject org Accelerometer Manual 47 8 References Select study publications Kerr J Sallis J F Owen N Bourdeaudhui I Cerin E Reis Sarmiento O Fr mel K J Troelsen J Christiansen LB Macfarlane M Salvo D Schofield G Badland H Guillen Grima F Aguinaga Ontoso I Davey R Bauman A Saelens B Riddoch C Ainsworth B Pratt M Schmid T Frank L D Adams M A Conway T L Cain K L Van Dyck D B
77. night Leave next to your bed or by your cell phone to remind you to put it on each day You can wear it underneath or on top of your clothes We will give you a log where you will note the days and times you put the meter on and take it off The battery will run out in 10 days and the meter will stop working This is why it s very important that you wear it for 7 consecutive days Tt runs on a watch battery and isn t a tracking device It can t tell what type of activity you are doing or where you are It s really small I ve worn it myself and after a little while I forgot I was even wearing it We will call you in a few days to see how things are going is special just for you so make sure no one else wears it Please try to take care of the device it because is very valuable to us Accelerometer Manual 18 aM I Mailing Procedures 1 Using Priority mail each Actigraph should be attached to the appropriate belt and sent in a padded 7 2 x10 2 envelope This envelope will serve as the participant s return envelope when sending back the materials so do not seal it closed Ensure that this envelope has the return address information completed as well as the appropriate postage and a checklist reminder sticker Here is an example of the sticker Did you remember to include Completed Survey Completed Meter Log Activity Meter Belt Thank you for your participatio
78. ns to be made concerning data collection and scoring Below is a list of things to consider as well as recommendations or rules for how to deal with them Pre data collection 1 How long should we ask participants to wear the Actigraph Accelerometer Manual 7 We always ask for 7 complete days if the minimum is 5 valid days A complete day is described below in 7 8 The days do not have to be consecutive but it helps Our studies in adults do not require a weekend day If the accelerometer is picked up person and the unit is still collecting data the pick up day CANNOT be counted as a valid wearing day even if there are enough valid hours Because the devices are still collecting data after download the data collected will be a mix of participant movement and researcher movement It is very labor intensive to separate these data therefore it s important to schedule the accelerometer retrieval for a day after you expect the participant to be done wearing it When should we ask them to wear the meter e g waking time only after school or work all day and night We ask participants to put it on first thing in the morning and take it off right before bed at night Because the device is NOT water proof participants are instructed to take the device off when showering or swimming We ask participants not to wear the device when they are going to be out of town overnight because we want to measure activity that occurs in their neighborhood
79. of the screen The program will begin starting with reading the device information 5 First check the battery which will appear at the bottom right corner of the screen Do not send an Actigraph if it has less than 400 hours left 6 You will receive a pop up window confirming that you d like to reset and initialize the Actigraph If the battery life is sufficient choose Yes 7 The program will begin processing your request then you will receive another pop up window this time to set the initialization information The cycle period epoch will default to 1 00 minute 8 Enter the start date which is the date that the Actigraph will start recording If sending the Actigraph by mail choose a start date that is the appropriate amount of time ahead using the calendar dropdown function 9 Enter start time in military time hh mm ss which should be 00 00 01 1 second after midnight You will leave the subject code name field blank as well as leaving the three boxes unchecked AUX FLASH MARKER If you check AUX step counts will be collected along with activity data Note that doing so will reduce your available memory by 50 Verity that all information 1 correct before proceeding 10 Press initialize and the process will begin Double check the start time at the bottom of the screen and also double check that the cycles field resets to 0 When the pop up window comes up verify that the carriage 1s flashing the 1 2
80. onfusing and consult the meter log You should make a note of this in the Access database so 1f cleaning of the file needs to occur later these files will be easy to find 6 Once you ve verified that the wearing days look valid write the number of valid hours above each corresponding day on the log using a red pen Another double check is to make sure the log start time reflects the start time in the data file You can check this by counting the rows of consecutive zeros in the raw data file for a given day Each row signifies an hour starting at midnight 7 Record the number of valid days in the Access tracking database Also record the dates of wearing any flags for bad or repeated data and information about each wearing day e g valid day why not day of week etc Include any information here that otherwise would be gleaned from the log Accelerometer Manual 27 jui MeterPlus default mpo File Tools Reports Help SACSA Data Colombia Trainings MeterFiles Examplesscontinuaus dat Mode Date Valid Hours Valid Day Day Of Week Mond ay M Tuesday 3 25 2008 Activity 0 Wednesday Activity arar 2008 1 Ma Thursday Activity 3 28 2008 14 Yes Friday Activity 3229 2009 14 Yes Saturday Activity 373072008 11 es Sunday Activity 323122008 12 Yes Monday Activity 42172009 14 es Tuesday Activity 42 2008 13 Yes wednesday Activity 4 3 2008 14 Thursday Activity 4 4 2008 13 Yes Friday Activit
81. orhood Quality of Life Study for Seniors NQLS Senior older adults 66 Participants measured for seven consecutive days using a 60 second epoch Participants are required to have at least 5 valid days for each meter wearing A valid day 1s defined as a day containing at least 10 valid hours A valid hour 1 one that does not contain a string of 30 or more zeroes equivalent of 30 minutes For scoring we used 8 hours as the minimum for a valid day and 45 minutes of consecutive zeros for non wearing time Exception I participant can have less than 5 valid days if they have at least 66 valid hours over the course of the time they wore it These days are manually changed to valid in MeterPlus Exception 2 If a participant doesn t meet the 66 hour requirement they can also have enough valid days based on altered criteria For this screen we will accept an altered criterion of 45 zeroes which 1 also what was used for scoring International Phvsical Activitv and Environment Network Studv adults 18 65 Participants measured for seven consecutive days using a 60 second epoch Participants are required to have at least 5 valid days for each meter wearing A valid day 1s defined as a day containing at least 10 valid hours A valid hour 1 one that does not contain a string of 60 or more zeroes equivalent of 60 minutes At this point there are no wear time exceptions Based on a few studies Winkler unpublished Rowlands 2
82. ph to the USB port making sure that no other ports are being used The meter should begin blinking Open the Actilife program and click on the Download icon When connected properly the software will recognize that a meter 1s connected Click OK to continue When download has completed you will receive a pop up to save the data to file Click Yes Save the DAT file using the participant ID with an underscore then the stage of participation e g 1001001000 s first meter should be named 1001001000 1 All DAT files should be saved in the the same folder to enable batch scoring However we also create copies for participant folders Once the DAT file has been downloaded we switch to the MeterPlus software to screen score and analyze the Actigraph data C Configuring Meter Plus to Screen Data l Click on the MeterPlus icon to open the program The default screen will look like this MeterPlus default mpo File Tools Reports Help No data file loaded Drag and drop a file here Valid Hours Valid Day Day Of Week Get Total Valid Hours 2 Click on Tools and Options to pull up the following screen to set the configuration options These configuration settings apply to how MeterPlus processes data from the DAT file for viewing screening purposes Accelerometer Manual 25 1 MeterPlus Options Hours required Far a valid day Number of zeros in row to make an hour invalid Meter St
83. pts 1 Meter Check Call MC The Meter Check Call should be placed on the day or one day after the monitor 1 expected to arrive at the participant s home It reminds the participant to be on the lookout for the device and as prompt to start wearing it Hello I am full name from the study name Can I speak to participant s name I m calling to check if your movement meter has arrived in the mail If yes That s great Do you have questions about wearing the meter How about completing the log I will check back in a few days to see how things are going If no I will check back in a few days to see if you have received it In the meantime look out for it in the mail it s in a small padded envelope with the name Project XXXX on it You can call me at local number if you have any questions 2 Meter Reminder Call MR Participants should be contacted on the 39 or 4 wearing day This call 1s to ensure that the meter is being worn correctly and to answer any questions It also helps to remind people to start wearing it and establishes a pattern of frequent communication between the participant and the recruiter The MR contact can ALSO be a text message and or an email Hello I am full name from the study name Can I speak to participants name I m calling to check in and see how you are doing with the monitor and log Are you writing down the time in the log when you are putting on and taking off the
84. racy N L in press Advancing Science and Policy through a Coordinated International Study of Physical Activity and Built Environments IPEN Methods Journal of Physical Activity and Health Kozo J Sallis J F Conway T L Kerr J Cain K Saelens B E Frank L D and Owen in press Sedentary behaviors of adults in relation to neighborhood walkability and income Health Psychology King A C Sallis J F Frank L D Saelens B E Cain K Conway T L Chapman J E Ahn D K Kerr J Aging in Neighborhoods Differing in Walkability and Income Associations with Physical Activity and Obesity in Older Adults Social Science and Medicine in press Buman M Hekler E Haskell W Pruitt L Conway T Cain K Sallis J Saelens B Frank L King A 2010 Evaluating Physical Activity Intensity Threshold Associations with Rated Health and Well Being in Older Adults American Journal of Epidemiology 172 10 1155 65 Sallis J Saelens B Frank L Conway T Slymen D Cain K Chapman J and Kerr J 2009 Neighborhood built environment and income Examining multiple health outcomes Social Science and Medicine 68 1285 1293 doi 10 1016 j socscimed 2009 01 017 Methods scoring procedures Cain KL Sallis JF Conway TL Van Dyck D Calhoon L in press Using Accelerometers in Youth Physical Activity Studies A Review of Methods Journal of Physical Activity and Health Yildirim M Verloigne
85. replaced with this value Note this value needs to be defined as an activity category in the Categories tab Specifies the level of output that 15 produced from the batch of MPD files Totals for Valid Days Only Totals for Valid and Invalid Days Totals and Daily for Valid and Invalid Days Daily for Valid Hours Only and Hourly for Valid and Invalid Days Only summary data for valid days only Totals for Valid and Selecting this option provides overall Invalid Days summary data for valid and invalid days Totals and Daily for Selecting this option provides overall Valid and Invalid Days summary and daily summary variables for valid and invalid days Daily for Valid Hours Selecting this option provides daily Only summary variables only for hours that are valid as defined in the Number of Zeros in a row to make an hour invalid Hourly for Valid and Selecting this option provides daily Invalid Days summary and hourly data for valid and invalid days This option creates the largest number of variables Parameter Specifies the type of data that is batch scored The default select will score all types of MPD files located in the specified folder Activity refers to single axis activity Directory to save new data files This is the full path to the directory where screened files MPD files are saved for eventual scoring The batch scoring process requires all files to be located in the same folder so any group of
86. ropose to add intermediate categories while also maintaining cut points that would allow for aggregation in the senior sample for comparison with the Prime adult sample if desired at some future point Thus for NQLS Senior we would split the light PA intensity range used in NQLS Prime into low light and high light categories and we would also split the moderate PA intensity range used in NQLS Prime into low moderate and high moderate categories and we would keep the same cut point for vigorous hard intensity used in NQLS Prime Having 4 categories in the light and moderate range for Seniors rather than only 2 in this range for Prime should allow us to examine associations with lower intensity PA levels in Seniors while still maintaining standardization for comparison with the Prime adult sample Lastly the new low light high light low moderate and high moderate ranges of accelerometer counts minute are reasonably consistent with the distribution of counts minute found in LIFE P participants completing a 400m walk For example see notes in attached table to be classified as sedentary in NQLS Senior accelerometer counts minute would have to be below the minimum observed in even the slowest LIFE P senior doing the walk test to be classified as high light in NQLS Senior counts minute would be consistent with the interquartile range middle 50 of values found in the somewhat impaired LIFE
87. s been in use An increase in battery life signals a problem with the meter see troubleshooting in appendix Check the memory for errors memory address 0 is an error see screening data section for more information When the screen reads finished it will ask you if you d like to view the file click No and exit the program After downloading a DAT file will be created in the same files folder as the original INI file Select the DAT and INI files and move them from the files folder into a separate folder created for participant meter data Once the files have been moved rename them as _ 1 for each file where the Xx s represent the participant s ID The 1 at the end corresponds to the first wearing time This should be the same number that you entered in the subject code name field during while initializing All DAT files should be saved in the the same folder to enable batch scoring However we also create copies for participant folders Once the DAT file has been downloaded we switch to the MeterPlus software to screen score and analyze the Actigraph data Accelerometer Manual 24 B Downloading ActiGraph Data from new models Actilife software 1 When the Actigraph is returned wipe it with a sanitizing cloth to clean it Put belt in designated to be washed location Record date Actigraph received and date downloaded verified 1n the Access database Connect Actigra
88. s to ICC Accelerometer Manual 51 B MeterPlus Options View Data Score Data Categories Filename Bouts kCals Filters Hours required a valid day Number of consecutive MINUTES ta define invalid wearing tine Value to use for undefined field Replace strings of zeros with the following value eros ww ane 5e renisced Y fere iz aang faf mears fe zef afore fo make anm hour stata Output Totals and Daily for Walid and Invalid Days m Parameter Director to save acuments and SettingsskecainsMly D acumentssM eterPlus 4 a cave Save and Close Exit E Filenaming We need a consistent convention to identify files at the IPEN CC and to assure we have unique participant ID numbers across countries e We are requiring that each country add their unique Country Code to the beginning of each filename and participants ID followed by an underscore e g 55 xxxx e We suggest using a 12 character file name for survey accelerometer and other relevant files o Country code 2 characters followed by _ ask CC for your unique code o Walkability code 1 character 1 low walkability 2 high walkability o Neighborhood Tract or City code 6 characters use the smallest unit available ID number within neighborhood census tract or city 3 characters Sample filename 0012 ID within Census Tract e Feel free to include other information i
89. saved to C Documents and Settingsikcain ALR Desktop testing 324025042077_1 mpd ave Selected Days If a participant has more than one file in the first or second part such as a re wear meter file the data for each part need to be combined prior to batch scoring e Open the re wear MPD file in Notepad indicated by a 1 at the end of the file name 314509001029 1 1 mpd Make a note of the number of days in this file Header NumberOfDays e Copy all of the data after the header which starts with a date DATE 08 18 2003 Close file e Open the original file in Notepad 314509001029 1 mpd Paste the data from the re wear file to the end of this file e Change the NumberOfDays in the header to reflect the data added from the re wear file For example if 3 days of re wear data are added to 4 Accelerometer Manual 38 days in the original file change the NumberOfDays 4 to NumberOfDays 7 e Save the new file containing data from both wearings e Delete the re wear MPD file D Configuring MeterPlus to Score Data See MeterPlus User s Manual Sections 8 12 for detailed instructions The information in these sections pertains to how MeterPlus processes MeterPlus Data MPD files during the batch scoring process as it creates a final scored comma delimited data file 299 MeterPlus Options Cut points View Data Score Data Categories Filename Bouts kCals Fitters Group Category Na
90. second epoch less with smaller epochs or additional data It is possible to collect step counts and horizontal plane data in addition to single plane vertical activity data This model was used in IPEN studies Pros Lot of memory USB connection speeds up initialization and downloading process unit malfunction less likely doesn t require calibration can be repaired Cons Short battery life data not comparable to older models GT3X This version is similar to the except that the rechargeable battery lasts 2 days it has 4MB of flash memory and it 1s possible to collect diagonal plane and inclinometer data This model was used in IPEN studies Pros In addition to above even more memory more options for additional data collection e g tri axis data can be repaired single axis data appear to be comparable with GT1M Cons Still a short battery life although you get an extra 7 days from this model inclinometer not validated data not comparable to older models GT3X This is the newest version of ActiGraph It collects data in raw format with the epoch and filtering applied post download The user can specify the sampling rate up to 100 Hertz The rechargeable battery lasts 31 days and it has 512MB of memory New data collection is the ambient light sensor This model is currently being used in our NQLS Senior Follow up study Pros In addition to above more flexibility in scoring because of the post download epoch
91. seful to offer specific sizes For adults we offer 36in 90cm 481 120cm and 60in 150cm Attach the Actigraph to the belt before mailing it to the participant 3 Take off one half of the buckle from the belt 4 Pull the belt through the two belt loops on the sides of the Actigraph so that the belt goes across the front of the Actigraph the label will be against the person s body 5 Attach the other half of the buckle once the Actigraph 1 on the belt Belts should be washed hand washed or cold cycle no tumble drying after each wear G Instructions for Wearing the Actigraph 1 The ActiGraph can be worn either over or under clothing whichever is most comfortable to the participant The meter does not need to be in direct contact with the body However it is essential that the ActiGraph be positioned snugly enough against the body that it cannot flop around 2 Each participant will be instructed on how to wear the ActiGraph The ActiGraph will be given to the participant already threaded onto the elastic belt Participants should be instructed to wear the ActiGraph with the elastic belt fastened around the waist with the unit positioned over the right hip bone They should be told not to wear it in any other way including Accelerometer Manual 16 NOT in any pockets of clothing NOT in a backpack or handbag NOT in a car glove compartment or trunk NOT when they are spending the night outside of their neighborhood Parti
92. ss 0 in the header of the file is an error 3 MeterPlus shows you the date range from when the meter was initialized to when it was downloaded and whether or not each day is valid Double check that the date initialized is the first date reflected in MeterPlus If it isn t this could indicate a problem with the data file 4 Open each wearing day in Detailed View by double clicking Wearing days can be determined by using the log or by checking the data in the absence of a log Note whether the participant noted the correct day of the week for the corresponding date The detailed view 1n MeterPlus will show you the raw data The data patterns of wearing the Actigraph and mail time are quite different as are patterns from devices that are not functioning properly Often times a mail day or a malfunction will be listed as being valid but upon reviewing the raw data it will be clear that it 1s not see examples below Note there may be discrepancies between the meter log and the scored data Although most participants fill out the logs accurately there are some who do not There may be days where the log reflects 12 hours of movement but you see 14 The downloaded data is likely more accurate than the log so don t worry about discrepancies 5 People will occasionally go to sleep with the Actigraph on There will be movement between the two days and it 1s hard to determine where one day ends and another begins Just be aware that this data looks c
93. thresholds for activity intensities in adolescent girls Medicine amp Science in Sports amp Exercise 36 7 1259 1266 Freedson PS Sirard J Debold E et al Calibration of the Computer Science and Applications Inc CSA accelerometer Med Sci Sports Exerc 1997 29 suppl 45 Puyau MR Adolph AL Vohra FA Butte NF Validation and calibration of physical activity monitors in children Obes Res 2002 10 150 157 Accelerometer Manual 49 Trost SG Pate RR Sallis JF et al Age and gender differences in objectively measured physical activity in youth Med Sci Sports Exerc 2002 34 350 355 Guinhouya CB Hubert H Soubrier 5 et al Moderate to vigorous physical activity among children discrepancies in accelerometry based cut off points Obesity 2006 14 5 774 TTT Mota J Valente M Aires L et al Accelerometer cut points and youth physical activity prevalence Euro Phys Edu Rev 2007 13 3 287 299 Non weat and sedentary time processing methods Winkler EAG Paul A Healy Genevieve N Clark Bronwyn K Sugiyama Takemi Matthews Charles Owen Neville G Distinguishing true sedentary from accelerometer nonwearing time Accuracy of two automated wear time estimations Evenson and Terry Assessment of Differing Definitions of Accelerometer Nonwear Time 2009 Res Quar Exer Sport 80 2 355 362 Rowlands Esliger Eady amp Eston 2009 Empirical Evidence to Inform Decisions Regarding Identification of Non Wear Per
94. u the day after tomorrow to check on you Call with any questions o Call us if you miss a and we ll let you know what to do Accelerometer Manual 60 Meter Calibration 7164 and 71256 models only Every time the meter s battery 1s changed check its calibration using the Actigraph calibrator pictured here Fe f Proceed with changing the battery as normally but leave the screws off afterward a Place the meter in the calibrator notch side facing down serial number side facing down Open the DOS program named CAL2000 located in the SWAM folder The calibrator will immediately start its process and will show the current battery life Verify that the battery life is close to 4000 hours as you will have just changed the battery The calibrator will then spin the meter Do not interfere with the calibrator during this time b When it has finished spinning you will see a read out graph along with a Readings between 57 and 63 are considered within calibration If the reading is within this range remove the meter attach the screws and use it normally c Ifthe reading falls outside of this range you will need to adjust the meter Remove it from the calibrator and remove the back of the meter Using a small flat head screwdriver turn the calibrating screw turning the screw clockwise adjusts the range down and turning the screw counter clockwise adjusts it up Re attach the meter backing and check its calibration
95. ur own in house validation study we have concluded that 60 minutes of consecutive zeros maximizes the detection of sedentary behavior at least for adults People can sit very still no movement registered on the meter for at least an hour This definition was designed to maximize sensitivity for sedentary time and not designed to maximize specificity between non wear and sedentary therefore it is very important that non wear days are manually detected and screened out of the data The 60 minute definition makes it very difficult to distinguish non wear days such as mailing days WITHOUT MANUALLY SCREENING Accelerometer Manual 8 10 11 the data Screening is absolutely essential as we have found that more than half of mail days will have gt 10 valid hours using 60 minutes of zeros With the new models this is not much of an issue as a very low percent have more than a few valid hours One study Choi 2012 MSSE showed that their algorithm 90 minutes with a formula for allowances in the 30 minute upstream downstream performed better than the Troiano algorithm 60 minutes with 2 consecutive minutes for an allowance in seniors but studies haven t been conducted comparing non wear definitions without allowances which is what MeterPlus uses For future studies based on the information we have now we will use 60 minutes of zeros How do you define a valid day For compliance a valid day contained at least 10 v
96. ve back from them is particularly 1mportant to our study We estimate that five packages have been lost in the mail in the past six months The missing packages have been mailed from Seattle in 7 x 10 padded envelopes clearly labeled with either our Cincinnati or San Diego address The packages contain an Actigraph a nylon belt a log sheet single sheet of paper and a survey The Actigraph is approximately half the size of a pager and 1s either off white or blue has no visible buttons or knobs and should have a label on one side with the name of the project address either Cincinnati or San Diego and a contact phone number It is also possible that the Actigraph never reached its destination when originally mailed to Seattle In that case the package would be a 9 x 12 flat manila envelope addressed to an individual in Seattle with the Neighborhood Quality of Life Study s return address clearly labeled on the package The package contains the Actigraph the belt the log sheet instructions on how to wear the device properly and a 7 x10 padded envelope for the recipient to use as the return envelope later Again these Actigraphs are essential to our study and any help your office can provide in locating the lost packages will be greatly appreciated Enclosed please find samples of the two envelopes as well as a photocopied picture of the Actigraph Please contact at for any further information or if these packages have
97. y 4 5 2008 0 Saturday Activity 4 6 2008 0 Sunday Activity 4 7 2008 Monday Activity 4 5 2008 0 Ma Tuesday Activity Wearing time continuous These days look straight forward Use log to match up days AND do a manual check of the first the last and a few middle wearing days to validate wearing time What you see in the data supersedes what is reported on log e g 7 days may be reported on the log but you see 8 days so it is 8 MeterPlus default mpo Fil Tools Reports Help SACSA Data Colombia Trainings MeterFiles Examples intermittent4 dat oe 14 2008 Thursday Activity 8 15 2008 Friday Activity 016 2008 Saturday Activity 8 17 2008 Sunday Activity B 18 2008 Monday Activity 8 13 2008 Tuesday Activity B 20 2008 Wednesday Activity 8 2 1008 Thursday Activity B 22 2008 Friday Activity of 23 2008 Saturday Activity of 24 2008 Sunday Activity B 25 2008 Monday Activity B 25 2008 Tuesday Activity oer a008 Wednesday Activity B 28 2008 Thursday Activity Wearing time intermittent Wearing time is NOT straight forward Use log to match up days AND do manual check of each day to determine wearing time double click to open every day with any valid hours What you see in the data supersedes what is reported on log It is possible that 7 consecutive days would be reported on the log but obviously not the case Accelerometer Manual 28 Valid Day Example double click day in list view to see detailed dat
98. youth Med Sci Sports Exerc 2011 43 7 1360 1368 Van Cauwenberghe E Labarque V Trost SG Bourdeaudhuij I de Cardon G Calibration and comparison of accelerometer cut points in preschool children Int J Pediatr Obes 2011 6 2 2 e582 e589 Catellier D J Hannan P J Murray D M Addy C L Conway T L Yang S et al 2005 Imputation of missing data when measuring physical activity by accelerometry Med Sci Sports Exerc 37 11 Suppl 555 562 Evenson K R Catellier D J Gill K Ondrak K S and McMurray R 2008 Calibration of two objective measures of physical activity for children Journal of Sports Sciences 26 14 1557 1565 Mattocks C Leary S Ness A et al Calibration of an accelerometer during free living activities in children Int J Pediatr Obes 2007 2 4 218 226 Sirard JR Trost SG Pfeiffer KA Dowda M Pate R Calibration and evaluation of an objective measure of physical activity in preschool children J Phys Act Health 2005 3 345 357 Pate RR Almeida MJ McIver KL Pfeiffer KA Dowda M Validation and calibration of an accelerometer in preschool children Obesity 2006 14 2000 2006 Reilly JJ Coyle J Kelly L Burke Grant S Paton JY An Objective Method for Measurement of Sedentary Behavior in 3 to 4 Year Olds Obesity 2003 11 1155 1158 Treuth M S Schmitz K Catellier D J McMurray R G Murray D Almeida M J Going S Norman J E and Pate R 2004 Defining accelerometer

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