P-714: Association between spatial-temporal gait parameter and daily physical activity in community-dwelling older people

摘要

Background: Daily physical activity (PA) is a key factor in preventing frailty in older people. Spatial and temporal parameters of gait are of relevance in walking ability, which is important for PA of older people. In this study, we examined the association between PA and spatial-temporal gait parameter in community-dwelling older people. Methods: Cross-sectional analysis of the community-dwelling older people (n = 416, 72.3 ± 4.6 years, male = 53%) without any physical impairment was conducted with spatial-temporal gait parameters (mean and coefficient of variation (CV) of speed, stride time, cadence, stride length, double support time, and step width) using electronic walkway, geriatric depression scale (GDS), and other background data. PA was evaluated as life-space movement, which was assessed by frequency of actual mobility on the following two life-space levels; (1) outside neighborhood, but within town, (2) outside town. The participants were divided into two groups; low PA group (< 2 day/week) and middle-high PA group (> 3 days/week) at each life-space levels, and relationship with each variable were investigated by logistic regression analysis adjusted by confounding factors. Results: In analysis of life-space level 1), 91.2% participants were high PA group, which was associated with double support time CV (OR 1.10, 95% CI 1.02-1.19) and GDS score (OR 0.81, 95% CI 0.74-0.88). In analysis of life-space level 2), 13.7% of participants were high PA group, which was associated with GDS score (OR 0.88, 95% CI 0.79-0.99). Key conclusions: The current results demonstrated that double support time CV is important on PA in addition to depression in community-dwelling older people.