The mediating effect of self-efficacy and physical activity with the moderating effect of social support on the relationship between negative body image and depression among Chinese college students: a cross-sectional study

Abstract Background Fitness to maintain an ideal body shape is becoming increasingly popular among college students. However, it also leads to many mental health issues. This study explores the pathways through which negative body image affects depression in college students. It also examines possib...

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Main Authors: Ye Yuan, Yanling Tu, Yuqi Su, Lei Jin, Yu Tian, Xuesong Chang, Ke Yang, Haiyun Xu, Junyi Zheng, Daili Wu
Format: Article
Language:English
Published: BMC 2025-01-01
Series:BMC Public Health
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Online Access:https://doi.org/10.1186/s12889-025-21350-1
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author Ye Yuan
Yanling Tu
Yuqi Su
Lei Jin
Yu Tian
Xuesong Chang
Ke Yang
Haiyun Xu
Junyi Zheng
Daili Wu
author_facet Ye Yuan
Yanling Tu
Yuqi Su
Lei Jin
Yu Tian
Xuesong Chang
Ke Yang
Haiyun Xu
Junyi Zheng
Daili Wu
author_sort Ye Yuan
collection DOAJ
description Abstract Background Fitness to maintain an ideal body shape is becoming increasingly popular among college students. However, it also leads to many mental health issues. This study explores the pathways through which negative body image affects depression in college students. It also examines possible means of implementing depression interventions in college populations through the mediating roles of self-efficacy and physical activity, and the moderating role of social support. Method The present study employed a convenience sampling method to collect data from 600 university students using the Body Image Scale, Self-Efficacy Scale, Physical Activity Scale, General Social Support Scale and Depression Self-Rating Scale. Data analysis and structural equation modeling were conducted using SPSS, M-plus and R software. Result The result indicate that negative body image is positively correlated with depression. Self-efficacy and physical exercise play a chain mediating role between body image and depression. Additionally, social support moderates the effects of self-efficacy by predicting the pathway through which physical activity effects depression. Conclusion The study suggest that individuals with a negative body image are more prone to depression and that physical exercise can help alleviate their depressive symptoms. Self-efficacy is an important mediator, and social support moderates adherence to physical exercise. Therefore, attention should be paid to the mental health issues of college students with negative body images.
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spelling doaj-art-b9a13f4229c5499a8309dd9f15b0771f2025-01-26T12:56:05ZengBMCBMC Public Health1471-24582025-01-0125111010.1186/s12889-025-21350-1The mediating effect of self-efficacy and physical activity with the moderating effect of social support on the relationship between negative body image and depression among Chinese college students: a cross-sectional studyYe Yuan0Yanling Tu1Yuqi Su2Lei Jin3Yu Tian4Xuesong Chang5Ke Yang6Haiyun Xu7Junyi Zheng8Daili Wu9School of Mental Health, Wenzhou Medical UniversitySchool of Mental Health, Wenzhou Medical UniversityThe First School of Medicine (School of Information and Engineering), The First Affiliated Hospital of Wenzhou Medical University, Wenzhou Medical UniversitySchool of Mental Health, Wenzhou Medical UniversitySchool of Mental Health, Wenzhou Medical UniversityGuangxi Health Science CollegeSichuan Nanchong Mental Health Center, Nanchong Second People’s HospitalSchool of Mental Health, Wenzhou Medical UniversitySchool of Medical Humanities and Management, Wenzhou Medical UniversitySchool of Stomatology, Wenzhou Medical UniversityAbstract Background Fitness to maintain an ideal body shape is becoming increasingly popular among college students. However, it also leads to many mental health issues. This study explores the pathways through which negative body image affects depression in college students. It also examines possible means of implementing depression interventions in college populations through the mediating roles of self-efficacy and physical activity, and the moderating role of social support. Method The present study employed a convenience sampling method to collect data from 600 university students using the Body Image Scale, Self-Efficacy Scale, Physical Activity Scale, General Social Support Scale and Depression Self-Rating Scale. Data analysis and structural equation modeling were conducted using SPSS, M-plus and R software. Result The result indicate that negative body image is positively correlated with depression. Self-efficacy and physical exercise play a chain mediating role between body image and depression. Additionally, social support moderates the effects of self-efficacy by predicting the pathway through which physical activity effects depression. Conclusion The study suggest that individuals with a negative body image are more prone to depression and that physical exercise can help alleviate their depressive symptoms. Self-efficacy is an important mediator, and social support moderates adherence to physical exercise. Therefore, attention should be paid to the mental health issues of college students with negative body images.https://doi.org/10.1186/s12889-025-21350-1Body imageDepressionPhysical activitySelf-efficacySocial support
spellingShingle Ye Yuan
Yanling Tu
Yuqi Su
Lei Jin
Yu Tian
Xuesong Chang
Ke Yang
Haiyun Xu
Junyi Zheng
Daili Wu
The mediating effect of self-efficacy and physical activity with the moderating effect of social support on the relationship between negative body image and depression among Chinese college students: a cross-sectional study
BMC Public Health
Body image
Depression
Physical activity
Self-efficacy
Social support
title The mediating effect of self-efficacy and physical activity with the moderating effect of social support on the relationship between negative body image and depression among Chinese college students: a cross-sectional study
title_full The mediating effect of self-efficacy and physical activity with the moderating effect of social support on the relationship between negative body image and depression among Chinese college students: a cross-sectional study
title_fullStr The mediating effect of self-efficacy and physical activity with the moderating effect of social support on the relationship between negative body image and depression among Chinese college students: a cross-sectional study
title_full_unstemmed The mediating effect of self-efficacy and physical activity with the moderating effect of social support on the relationship between negative body image and depression among Chinese college students: a cross-sectional study
title_short The mediating effect of self-efficacy and physical activity with the moderating effect of social support on the relationship between negative body image and depression among Chinese college students: a cross-sectional study
title_sort mediating effect of self efficacy and physical activity with the moderating effect of social support on the relationship between negative body image and depression among chinese college students a cross sectional study
topic Body image
Depression
Physical activity
Self-efficacy
Social support
url https://doi.org/10.1186/s12889-025-21350-1
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