Relationship between physical functioning and physical activity in the lifestyle interventions and independence for elders pilot

OBJECTIVE To determine whether participation in usual moderate-intensity or more-vigorous physical activity {(MVPA)} is associated with physical function performance and to identify sociodemographic, psychosocial, and disease-related covariates that may also compromise physical function performance.
METHODS Cross-sectional analysis of baseline variables of a randomized controlled intervention trial. SETTING Four academic research centers.
PARTICIPANTS Four hundred twenty-four older adults aged 70 to 89 at risk for mobility disability (scoring <10 on the Short Physical Performance Battery {(SPPB))} and able to complete the 400-m walk test within 15 minutes.
MEASUREMENTS Minutes of {MVPA} (dichotomized according to above or below 150 min/wk of {MVPA)} assessed according to the Community Healthy Activities Model Program for Seniors questionnaire, {SPPB} score, 400-m walk test, sex, body mass index {(BMI),} depressive symptoms, age, and number of medications.
RESULTS The {SPPB} summary score was associated with minutes of {MVPA} (ρ=0.16