Use of Accelerometry to Measure Physical Activity in Older Adults at Risk for Mobility Disability
作者: Leslie A. PruittNancy W. GlynnAbby C. KingJack M. GuralnikErin K. AikenGary MillerWilliam L. Haskell
来源数据库: Human Kinetics
DOI: 10.1123/japa.16.4.416
关键词: Assessmentmotion sensorexerciselocomotor activity
原始语种摘要: 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 (ThreshIND) 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 ThreshIND 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 ThreshIND for the PA group (28,101 ± 27,521) than for the SA group (17,234 ± 15,620, p = .02). Correlations between activity counts/hr...
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