AUTHOR=Du Jinsong , Tao Xinru , Zhu Le , Wang Heming , Qi Wenhao , Min Xiaoqiang , Wei Shujie , Zhang Xiaoyan , Liu Qiang TITLE=Development of a visualized risk prediction system for sarcopenia in older adults using machine learning: a cohort study based on CHARLS JOURNAL=Frontiers in Public Health VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2025.1544894 DOI=10.3389/fpubh.2025.1544894 ISSN=2296-2565