Association between different modes of physical activity and sleep disorders in young and middle-aged adults: a population-based study.

Objectives: This study aims to investigate the correlation between different modes of physical activity (PA) and sleep health.

Methods: We used data from the National Health and Nutrition Examination Survey (NHANES) database from 2007 to 2014. Logistic regression was used to explore the association between leisure-time PA (LTPA), work-time PA (WTPA), and transportation-time PA (TTPA) and sleep disorders. Restricted Cubic Sample (RCS) plots were drawn to visualize the relationship between LTPA and sleep disorders. Finally, subgroup analyses were conducted to evaluate potential interaction effects across different subgroups.

Results: A total of 13,389 participants aged 20-64 years were included in the analysis, of whom 1168 had sleep disorders. After multivariate adjustment, we found a negative association between LTPA and sleep disorders, whereas WTPA and TTPA did not have such an association. The RCS plot visually demonstrates an L-shaped dose-response relationship between LTPA and sleep disorders, indicating that engaging in more than 600 min/week of LTPA does not confer additional benefits for sleep disorders. In addition, subgroups analyses showed no significant effect between groups on this relationship.

Conclusions: An L-shaped dose-response relationship was observed between LTPA and sleep disorders. Engaging in 600 min of LTPA per week significantly reduced the prevalence of sleep disorders. In contrast, no significant associations were found between WTPA or TTPA and sleep disorders.