OBJECTIVES-To determine if 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. DESIGN-Cross-sectional analysis of baseline variables of randomized controlled intervention trial. ACR -analysis and interpretation of data, and preparation of manuscript. JMG -concept and design, acquisition of subjects and/or data, analysis and interpretation of data, and review and editing of manuscript. MPW, MEM -concept and design, analysis and interpretation of data, and review and editing of manuscript. WJR -acquisition of subjects and/or data, analysis and interpretation of data, and review and editing of manuscript. JAK -acquisition of subjects and/or data, analysis and interpretation of data, and review and editing of manuscript. ACK -concept and design, acquisition of subjects and/or data, analysis and interpretation of data, and review and editing of manuscript. NWG -acquisition of subjects and/or data, analysis and interpretation of data, and review and editing of manuscript. SNB -concept and design, acquisition of subjects and/or data, analysis and interpretation of data, and review and editing of manuscript. RAF -concept and design, analysis and interpretation of data, and review and editing of manuscript. RESULTS-The SPPB summary score was associated with minutes of MVPA (ρ = 0.16, P = 0.001). In multiple regression analyses, age, minutes of MVPA, number of medications and depressive symptoms were associated with performance on the composite SPPB (P < 0.05). There was an association between 400 m walk time and minutes of MVPA (ρ = −0.18; P = 0.0002). In multiple regression analyses, age, gender, minutes of MVPA, BMI and number of medications were associated with performance on the 400 m walk test (P < 0.05).
SETTING-Four
NIH Public AccessCONCLUSION-Minutes of MVPA, gender, BMI, depressive symptoms, age, and number of medications are associated with physical function performance and all should be taken into consideration in the prevention of mobility-disability.