Physical Activity Modifies the Association between Dietary Protein and Lean Mass of Postmenopausal Women.

ABSTRACT:

Background

Maintenance of lean muscle mass and related strength is associated with lower risk for numerous chronic diseases of aging in women.

Objective

Our aim was to evaluate whether the association between dietary protein and lean mass differs by physical activity level, amino acid composition, and body mass index categories.

Design

We performed a cross-sectional analysis of a prospective cohort.

Participants/setting

Participants were postmenopausal women from the Women's Health Initiative with body composition measurements by dual-energy x-ray absorptiometry (n=8,298).

Main outcome measures

Our study measured percent lean mass, percent fat mass, and lean body mass index.

Statistical analyses performed

Linear regression models adjusted for scan

SUBMITTER: Martinez JA 

PROVIDER: S-EPMC5276713 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature