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- Title
Assessment of Physical Activity in Older People With and Without Cognitive Impairment.
- Authors
Hauer, Klaus; Lord, Stephen R.; Lindemann, Ulrich; Lamb, Sarah E.; Aminian, Kamiar; Schwenk, Michael
- Abstract
The purpose of this study was to validate a new interview-administered physical activity questionnaire (Assessment of Physical Activity in Frail Older People; APAFOP) in older people with and without cognitive impairment. The authors assessed feasibility, validity, and test-retest reliability in 168 people (n = 78 with, n = 88 without cognitive impairment). Concurrent validity was assessed against an inertia-based motion sensor and an established questionnaire. Sensitivity to change was tested in an ongoing study in patients with mild to moderate dementia (n = 81). Assessment of physical activity by the APAFOP and the motion sensor correlated well in the total sample (TS; p = .705), as well as in the subsamples with cognitive impairment (CI; p = .585) and without CI (p = .787). Excellent feasibility with an acceptance rate of 100%, test-retest reliability (intraclass correlation coefficients ranging from .973 (TS) to .975 (CI) to .966 (no CI), and sensitivity to change (effect sizes: 0.35-1.47) were found in both subsamples.
- Subjects
EXERCISE; ANALYSIS of variance; COGNITION disorders; CONFIDENCE intervals; STATISTICAL correlation; ENERGY metabolism; INTERVIEWING; RESEARCH methodology; PROBABILITY theory; RESEARCH funding; SELF-evaluation; STATISTICS; T-test (Statistics); DATA analysis; EDUCATIONAL attainment; INTER-observer reliability; RESEARCH methodology evaluation; OLD age
- Publication
Journal of Aging & Physical Activity, 2011, Vol 19, Issue 4, p347
- ISSN
1063-8652
- Publication type
Article
- DOI
10.1123/japa.19.4.347