Changes in knee extension peak torque and body composition and their relationship with change in gait speed.

ABSTRACT:

Background

Slow gait speed is a powerful predictor of disability in activities of daily living and mortality. Muscle strength and body composition change over time, but their changes differ by sex. How these parameters jointly affect gait speed decline is unknown. Understanding this association could help develop and evaluate the sex-specific effects of lifestyle interventions to delay gait speed decline in older adults. We assessed whether changes in strength (Δstrength), appendicular lean mass (ΔALM), and fat mass (Δfat) jointly relate to change in gait speed and whether the association differs by sex.

Methods

The analytic sample comprised 575 women and 539 men aged 22-95 years enrolled in the Baltimore Longitudinal Study of Aging. Mean follow-up was 4.0 years. Measures in

SUBMITTER: Osawa Y 

PROVIDER: S-EPMC6818676 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature