AUTHOR=Guo Xiangxuan , Cao Dawei , Wu Dong , Kuang Lulu TITLE=The relationship between mandatory exercise and exercise habits in Chinese colleges and universities: an analysis of multiple mediating effects JOURNAL=Frontiers in Psychology VOLUME=Volume 16 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2025.1536487 DOI=10.3389/fpsyg.2025.1536487 ISSN=1664-1078