体育活动与睡眠质量在不同负面情绪组间的关联

Elevated negative emotions and poor sleep are prevalent among Chinese college students. From the perspective of negative emotion heterogeneity, this study explored group differences in the mediation patterns between physical activity and sleep quality to inform targeted interventions. A cross-sectional design was employed. A total of 1953 college students completed the Physical Activity Rating Scale, Depression-Anxiety-Stress Scale, and Pittsburgh Sleep Quality Index. Latent profile analysis and mediation analyses were performed using SPSS, Mplus, and MATLAB. Three latent subgroups were identi