AUTHOR=Ma Xiaoni , Li Xiaotian , Che Li , Dong Jie TITLE=Influence of physical exercise on activities of daily living in older adults: an empirical analysis based on propensity score matching and difference-in-differences JOURNAL=Frontiers in Public Health VOLUME=Volume 13 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2025.1463348 DOI=10.3389/fpubh.2025.1463348 ISSN=2296-2565