Changing patterns and associated factors of exercise participation and physical activity levels among middle-aged and older adults from 2011-2020 in China

Our study provides national updated evidence showing exercise participation doubled among middle and older Chinese, yet insufficient PA remained stable over the past decade, which is likely attributable to reductions in job-related PA. In the context of rapid lifestyle and societal changes, future policies and intervention programs need to co-target exercise and varied PA domains and prioritize high-risk populations, including advanced age seniors, rural residents, and low SES groups, to alleviate inequities.