Article

We examined the associations of maintaining or increasing physical activity (PA)
for a 3-yr follow-up with subsequent incident inability to complete the 400-m
walk test (i.e., mobility disability) for 6 yrs of follow-up in older adults.
This study included 421 participants 65 yrs and older.
The 400-m walk test was
assessed at baseline and at 3-, 6-, and 9-yr follow-up. Physical activity was
self-reported through a 6-point rating scale at baseline and 3-yr follow-up.
Three-year cumulative PA (i.e., average at baseline and at 3-yr follow-up) and
its changes (i.e., from baseline to 3-yr follow-up) were linked to subsequent
incidence of mobility disability for 6 yrs of follow-up (i.e., from 3- to 9-yr
follow-up), after adjustment for potential covariates. After the 3-yr period,
incidence of mobility disability for the subsequent 6 yrs of follow-up occurred
in 129 participants. The odds ratio (95% confidence interval) of incident
mobility disability associated with 1-category increase in cumulative PA was 0.63
(0.41-0.97, P = 0.036). The odds ratio (95% confidence interval) of incident
mobility disability associated with 1-category increase in changes in PA was 0.56
(0.38-0.84, P = 0.005). Hence, maintaining or increasing PA levels is associated
with a reduced risk of mobility disability among older adults.

Langue : ANGLAIS