Towards active health: A study on the relationship between physical activity and body image among college students.

Aims: Active health is a new concept, model, and system for maintaining a state of whole-person health. In the context of the increasing severity of college students' mental health, it is of great significance to explore the relationship between physical activity and college students' body image based on an active health perspective. Methods: A survey was conducted among 853 college students in Zhejiang province using the physical activity rating scale, body image scale, sense of acquisition of sports body shaping scale and social adjustment scale. Using SPSS25.0 and Amos 24.0 software for data processing and analysis. Results: (1) There is a significant positive correlation between physical activity, body image, sense of acquisition of sports body shaping, and social adjustment. There is a significant positive correlation between physical activity and body image among college students; The sense of acquisition of sports body shaping a significant mediating role between physical activity and the promotion of college students' body image. The effects of physical activity on body image were mainly achieved through the following three mediating pathways: (1) physical activity → sense of acquisition of sports body shaping → body image, the mediating effect value of this pathway was 0.18, which accounted for 31.6 % of the total effect, with a confidence interval of [0.08, 0.28], (2) physical activity → social adaptation → body image, the mediating effect value of this pathway was 0.09, which accounted for 15.8 % of the total effect of 15.8 %, with a confidence interval of [0.03, 0.15], and (3) physical activity → sense of acquisition of sports body shaping → social adaptation → body image, a pathway with a mediated effect value of 0.09, accounting for 15.8 % of the total effect, with a confidence interval of [0.01, 0.17]. Conclusions: Physical activity is an important factor in promoting the body image of college students, and there is a chain intermediary effect between physical activity and body image. School sport has its own disciplinary value and unique strengths in advancing the development of body image in adolescents, and the significant mediating effects of sense of acquisition of sports body shaping and social adaptation in this process provide theoretical support for the body image turn to move from theory to practice in the field of school sport.