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VALIDITY AND RELIABILITY OF A NOVEL COMPUTER-ANIMATED SELF-REPORT PHYSICAL ACTIVITY INSTRUMENT IN OLDER ADULTS

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title
VALIDITY AND RELIABILITY OF A NOVEL COMPUTER-ANIMATED SELF-REPORT PHYSICAL ACTIVITY INSTRUMENT IN OLDER ADULTS
author
Janssen, James
abstract
The purpose of this study was to investigate the reliability, construct validity and responsiveness to a physical activity intervention of the MAT-PA (Mobility Assessment Tool-Physical Activity) physical activity questionnaire (PAQ) for walking in older adults. The MAT-PA is a novel computer-animation assisted self-report questionnaire created for the assessment of physical activity in older adults. We recruited 185 older adults (67.0 ± 4.8yrs, 72% female) at risk for cardiovascular disease as part of the Cooperative Lifestyle Intervention Program-II (CLIP-II) study. Participants completed the MAT-PA with supervision on three occasions, twice at baseline (~14 days apart) and once at six-months. Gait speed at usual and fast pace was measured using a GAITRite instrumented carpet, and 7-day accelerometry were collected at baseline and 6-months. The 400m walk test and a modified version of the CHAMPS PAQ were both completed at baseline. The MAT-PA walking metrics displayed acceptable test-retest reliability (rs = 0.63, p<0.01), good correlation with accelerometry moderate intensity physical activity minutes (rs=0.60, p<0.01) and mCHAMPS5 (rs=0.54, p<0.01), and was responsive to change from a physical activity intervention at 6-months when comparing the CLIP-II walking group with controls (F(1,68)= 31.253, p<0.0001, Eta²=0.32). Older adults were able to discriminate between walking speed animations. These findings suggest that the MAT-PA has promising psychometric properties for the assessment of walking as a mode of physical activity training.
subject
Accelerometry
Measurement
Older adults
Physical Activity
Validity
Walking
contributor
Marsh, Anthony P (committee chair)
Katula, Jeffrey (committee member)
Brubaker, Peter (committee member)
date
2014-07-10T08:35:28Z (accessioned)
2015-01-10T09:30:08Z (available)
2014 (issued)
degree
Health and Exercise Science (discipline)
embargo
2015-1-10 (terms)
identifier
http://hdl.handle.net/10339/39265 (uri)
language
en (iso)
publisher
Wake Forest University
type
Thesis

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