AUTHOR=Lyu Jing , Liu Zhiwu , Gong Hengjiang , Xu Tengfei TITLE=The association between body roundness index and sarcopenia in older adults: a population-based study JOURNAL=Frontiers in Public Health VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2025.1554491 DOI=10.3389/fpubh.2025.1554491 ISSN=2296-2565