期刊
JOURNAL OF AGING AND PHYSICAL ACTIVITY
卷 16, 期 4, 页码 416-434出版社
HUMAN KINETICS PUBL INC
DOI: 10.1123/japa.16.4.416
关键词
assessment; motion sensor; exercise; locomotor activity
资金
- National Institutes on Health/National Institute on Aging [U01 AG22376]
- Intramural Research Program, National Institute on Aging, NTH
- NATIONAL CENTER FOR ADVANCING TRANSLATIONAL SCIENCES [UL1TR000064] Funding Source: NIH RePORTER
- NATIONAL CENTER FOR RESEARCH RESOURCES [UL1RR029890] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE ON AGING [U01AG022376, P30AG028740, ZIAAG007370] Funding Source: NIH RePORTER
The authors explored using the ActiGraph accelerometer to differentiate activity levels between participants in a physical activity (PA, n = 54) or successful aging (SA) program (n = 52). The relationship between a PA questionnaire for older adults (CHAMPS) and accelerometry variables was also determined. Individualized accelerometry-count thresholds (Thresh(IND)) measured during a 400-m walk were used to identify meaningful activity. Participants then wore the ActiGraph for 7 days. Results indicated more activity bouts/day >= 10 min above Thresh(IND) in the PA group than in the SA group (1.1 +/- 2.0 vs 0.5 +/- 0.8, p = .05) and more activity counts/day above Thresh(IND) for the PA group (28,101 27,52 1) than for the SA group (17,234 15,620, p = .02). Correlations between activity counts/hr and CHAMPS ranged from .27 to .42, p < .01. The ActiGraph and Thresh(IND) might be useful for differentiating PA levels in older adults at risk for mobility disability.
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