Baseline and longitudinal changes in peak expiratory flow rate as predictors of sarcopenia in older adults: A 4-year cohort study.

ABSTRACT:

Objective

Peak expiratory flow rate (PEFR) is a cheap and simple tool for assessing airway patency and respiratory muscle strength. So far, the impact of PEFR, particularly its longitudinal changes, on the prevalence and incidence of sarcopenia remains underexplored. Therefore, we conducted a cross-sectional and longitudinal study to address this gap.

Methods

We analyzed data from the China Health and Retirement Longitudinal Study (CHARLS). A total of 5,280 older adults were selected as a cohort in 2011, of whom 3,686 were confirmed sarcopenia-free at baseline and followed through 2015. Longitudinal changes in PEFR were measured in 2011 and 2013, with complete paired data available for 2,904 subjects. Sarcopenia was diagnosed according to the 2019 Asian Working Group for Sar

SUBMITTER: Qian H 

PROVIDER: S-EPMC12311495 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature