Mobility Abilities Mediate the Association of a More Active Lifestyle With Mobility Disability in Older Adults.

ABSTRACT:

Background

Few studies have analyzed sensor-derived metrics of mobility abilities and total daily physical activity (TDPA). We tested whether sensor-derived mobility metrics and TDPA indices are independently associated with mobility disabilities.

Methods

This cohort study derived mobility abilities from a belt-worn sensor that recorded annual supervised gait testing. TDPA indices were obtained from a wrist-worn activity monitor. Mobility disability was determined by self-report and inability to perform an 8-feet walk task. Baseline associations of mobility metrics and TDPA (separately and together) were examined with logistic regressions and incident associations (average 7 years follow-up) with Cox models. Mediation analysis quantified the extent mobility metrics mediate t

SUBMITTER: Lange-Maia BS 

PROVIDER: S-EPMC11549496 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature