The Effect of Physical Exercise on Depression in College Students: The Chain Mediating Role of Self-Concept and Social Support

A chain-mediated model of the effect of physical exercise on loneliness

The physical and mental health development of college students has gradually become an important topic of social concern. The academic community focuses on different ways of physical exercise to improve the mental health of college students. On the basis of sports psychology, this paper discusses the interaction mechanism between physical activity and social support, interpersonal relationship quality and loneliness of college students, that is, physical and mental health effects of physical activities to promote the psychological level of college students. By random sampling, 784 college students were investigated and analyzed with physical exercise scale, loneliness scale, interpersonal relationship scale and social support scale, based on the general characteristics of the demographics variables, and through the analysis of multiple regression path model, this paper further explored the mechanism of the effects of physical activity, social support, loneliness and interpersonal relationship quality of college students. The results showed that physical exercise had a negative predictive effect on loneliness(β = - 0.246, p<0.01) and a positive predictive effect on interpersonal relationship quality and social support(β = 0.186, p<0.01; β = 0.156, p<0.01).In addition, social support and interpersonal relationship quality play a mediating role between physical exercise and loneliness, including three mediating paths, namely, social support and interpersonal relationship quality play an independent mediating role, the link mediating effect of social support and interpersonal relationship quality. According to the theory of psychological needs, the results show that physical exercise has an indirect effect on loneliness of college students through the chain mediating effect of interpersonal relationship quality and social support. College students can improve the level of social support and the quality of interpersonal relationships, and reduce the sense of loneliness.

The impact of alexithymia, anxiety, social pressure, and academic burnout on depression in Chinese university students: an analysis based on SEM

BACKGROUND

With societal development and increasing talent demands, college students face escalating pressures primarily stemming from academic burdens, uncertainties about the future, and complex social environments. These pressures have profound effects on mental health, particularly negatively impacting emotions and behavior. In this context, depressive symptoms are becoming increasingly prevalent among college students. Given the potential links between emotional disorders, anxiety, social pressure, and academic burnout, this study aims to explore how these factors collectively influence depression in college students.

METHODS

This study utilized a questionnaire approach, resulting in 599 valid responses. The collected data were analyzed using Smart-PLS for SEM to investigate the relationships among the variables.

RESULTS

The SEM analysis indicated that the comprehensive model explained 83.2% of the variance in depression. Alexithymia significantly positively predicted anxiety and social pressure. Academic burnout significantly positively influenced social pressure, anxiety, and depression. Anxiety played a partial mediating role in the impact of alexithymia and academic burnout on depression. Social pressure and alexithymia did not have a significant positive impact on depression. In addition, there is a significant gender difference in the impact of academic burnout on depression, with the path coefficient for males being significantly higher than that for females.

CONCLUSION

This study validated the complex relationships among alexithymia, anxiety, social pressure, academic burnout, and depression. As an emotional expression disorder, alexithymia not only directly impacts anxiety levels in college students but also indirectly affects depression through anxiety. Furthermore, the positive influence of academic burnout on anxiety and depression indicates that excessive academic burdens are significant sources of mental health issues for college students. This research offers new insights into understanding college students' mental health issues, aiming to provide more comprehensive intervention strategies for their psychological well-being.

The relationship between physical exercise and depressive symptoms in college students: the mediating role of rumination

Objective

This study aims to explore the correlation between physical exercise, rumination, and depressive symptoms in college students, as well as to investigate the potential pathways through which physical exercise may impact depressive symptoms. This exploration offers valuable insights for the development of clinical exercise interventions.

Methods

A cross-sectional study design was employed, with 2,902 participants recruited via convenience sampling. Structural equation modeling was utilized to explore the relationship between physical exercise and depressive symptoms in college students.

Results

1) Statistically significant differences were observed between depressed and non-depressed college students in terms of rumination, symptom rumination, reflective pondering, and compulsive meditation (all P < 0.05); 2) Physical exercise was found to negatively predict symptom rumination (B=-0.083, P<0.001), compulsive thinking (B=0.034, P>0.05), reflective pondering (B=-0.038, P<0.01), and BDI-II scores (B=-0.103, P<0.001). Symptom rumination positively predicted BDI-II scores (B=0.648, P<0.001), while compulsive thinking and reflective pondering were found to predict BDI-II scores positively (B=0.028, P>0.05) and negatively (B=-0.041, P>0.05), respectively. 3) Physical exercise exerted a direct effect of 59.09% on BDI-II scores (B: -0.065, 95% CI -0.104, -0.028), indicating that higher levels of physical exercise were associated with lower BDI-II scores. The coefficients for duration, intensity, and frequency were statistically significant (all P < 0.05), with intensity and frequency exhibiting higher path coefficients. Rumination, as a latent variable, mediated 40.91% of the indirect effect (B: -0.045, 95% CI -0.077, -0.015), with symptom rumination emerging as a statistically significant pathway (P < 0.05).

Conclusion

Rumination may mediate the relationship between physical exercise and depressive symptoms, with varying mediating effects across different dimensions of rumination. The intensity and duration of physical exercise exert a stronger influence.

Physical activity and mental health: a systematic review and best-evidence synthesis of mediation and moderation studies

BACKGROUND

While evidence consistently demonstrates that physical activity is beneficial to mental health, it remains relatively unknown how physical activity benefits mental health, and which factors influence the effect of physical activity on mental health. This understanding could vastly increase our capacity to design, recommend, and prescribe physical activity in more optimal ways. The purpose of this study was to systematically review and synthesise evidence of all mediators and moderators of the relationship between physical activity and mental health.

METHODS

Systematic searches of four databases (i.e., Scopus, PsycINFO, PubMed, and SPORTDiscus) identified 11,633 initial studies. Empirical studies that quantitatively assessed physical activity, or conducted a physical activity intervention, measured a mental health outcome, and tested one or more mediator or moderator of the relationship between physical activity and mental health were included. A total of 247 met the inclusion criteria; 173 studies examined mediation and 82 examined moderation.

RESULTS

Results of the best-evidence synthesis revealed strong evidence for 12 mediators including affect, mental health and wellbeing, self-esteem, self-efficacy, physical self-worth, body image satisfaction, resilience, social support, social connection, physical health, pain, and fatigue. Moderate evidence was identified for a further 15 mediators and eight moderators.

CONCLUSIONS

Findings should inform the design of future physical activity interventions to ensure optimal effects on mental health related outcomes. Additionally, if health professionals were to take these mediators and moderators into consideration when prescribing or recommending physical activity, physical activity would likely have a greater impact on population mental health.

Cross-lagged analysis of social support, physical activity behavior, and family relationships among university students

Objective

To explore the causal relationship between social support, physical activity behavior, and family relationships among university students.

Methods

Using the Social Support Rating Scale, the Physical Activity Behavior Self-Assessment Scale, and the Family Relationships Scale, a longitudinal follow-up survey was conducted on 412 college students in Sichuan Province at 2-month intervals in March 2024 (T1) and May 2024 (T2), to analyze the interaction mechanisms between college students' social support, physical activity behaviors, and family relationships through cross-lagging.

Results

(1) There are significant gender differences in social support, physical activity behavior, and family relationships among college students. Among the cross-lagged paths found, except for the path from T1 social support to T2 family relationships (β: 0.40 > 0.21), all other cross-lagged paths are smaller for female college students compared to male college students; (2) T1 social support was able to positively predict T2 physical activity behaviors (β = 0.50, p < 0.001), and T1 physical activity behavior can also positively predict T2 social support (β = 0.18, p < 0.01), but the path value T1 social support → T2 physical activity behavior is larger than T1 physical activity behavior → T2 social support. Therefore, social support is a causal variable for physical activity behavior; (3) T1 social support positively predicts T2 family relationships (β = 0.26, p < 0.001); (4) T1 family relationships positively predict T2 physical activity behavior (β = 0.30, p < 0.001). (5) Physical activity behavior is a mediating variable between family relationships and social support, with a mediating effect size of 0.054.

Conclusion

There are gender differences in social support, physical activity behavior, and family relationships among college students; there is a longitudinal causal relationship between social support, physical activity behavior, and family relationships; social support is a causal variable of physical activity behavior, and social support is also a causal variable of family relationships, and family relationships are the Social support is a causal variable for physical activity behavior, social support is also a causal variable for family relations, and family relations are a causal variable for physical activity behavior, which has a partially mediating role in family relations and social support.

Strengthening the meaning in life among college students: the role of self-acceptance and social support - evidence from a network analysis

Meaning in life, which has two possible sources: self-acceptance and social support, is essential to the mental health and development of college students. The current study aims to further clarify the symptom-level relations between meaning in life, self-acceptance, and social support, finding possible ways to improve meaning in the life of college students. Thousand three hundred and forty-eight Chinese college students completed the online questionnaire, including Self-acceptance Questionnaire, Social Support Rating Scale, and Meaning in Life Questionnaire and the data from 1,263 participants was used. Cross-sectional network analysis was used to examine the relation between self-acceptance and social support. We also explored the relation between dimensions of self-acceptance and social support and meaning in life using the flow network. The results show symptom "SlA" (self-acceptance) is the bridge symptom linking self-acceptance and social support. In the flow diagrams, "SlA" is directly and positively associated with the presence of meaning. Objective Support shares the strongest positive association with the search for meaning. The symptom "SIA" may be an important targeting symptom when trying to improve the meaning in life of college students. Additionally, social support is essential for college students to develop meaning in life.

Relationship between physical activity and risk of depression in a married group

BACKGROUND

Currently, there are many different findings on the relationship between physical activity and depression, and there may be differences between genders. This study therefore focused on gender differences to understand the relationship between physical activity behaviour and the risk of depression in married individuals.

METHODS

15607 married people in the China Family Panel Studies 2020 (CFPS 2020) were used to understand the relationship between physical activity and depression risk in different populations, and the chi-square test, Mann-Whitney U-test, and binary logistic regression were used to explore the relationship between physical activity and depression risk in the married population.

RESULTS

527 (6.64%) women were at high risk of depression and 365 (4.76%) men were at high risk of depression; physical activity was associated with the risk of depression in the married population, but after incorporating demographic and relevant cognitive variables, physical activity was negatively associated with the risk of depression in women (OR = 0.94, P < 0.01) but not statistically significant with the risk of depression in men (OR = 0.96, P > 0.05).

CONCLUSION

Physical activity was directly related to the risk of depression in married women, but not in married men.

Physical activity and depression of Chinese college students: chain mediating role of rumination and anxiety

Objective

To explore the relationship between physical activity and depression among college students, as well as the mediating role of rumination and anxiety.

Methods

A total of 1,292 Chinese college students were investigated by physical activity questionnaire, rumination scale, self-rating anxiety scale (SAS), and depression scale.

Results

(1) There was a significant negative correlation between physical activity and depression (r = -0.399, p < 0.01), and the direct path of physical activity on depression was significant (β = -0.399, t = -13.374, p < 0.01). (2) Physical activity negatively predicted rumination (β = -0.322, t = -10.440, p < 0.01) and anxiety (β = -0.222, t = -7.089, p < 0.01). Rumination positively predicted anxiety (β = 0.283, t = 9.017, p < 0.01) and depression (β = 0.267, t = 9.046, p < 0.01). Anxiety positively predicted depression (β = 0.262, t = 8.902, p < 0.01). (3) Rumination and anxiety play a significant mediating role between physical activity and depression. The mediating effect involves three paths: physical activity → rumination → depression (the mediating effect value: -0.076); physical activity → anxiety → depression (the mediating effect value: -0.052). Physical activity → rumination → anxiety → depression (the mediating effect value: -0.021).

Conclusion

(1) Physical activity can negatively predict the rumination, anxiety, and depression of college students, which means physical activity can reduce rumination, anxiety, and depression of college students. (2) Physical activity can not only directly affect the depression of college students, but also indirectly affect depression through the independent intermediary role of rumination and anxiety, and the chain mediation of rumination and anxiety.

Prediction of Relevant Training Control Parameters at Individual Anaerobic Threshold without Blood Lactate Measurement

BACKGROUND

Active exercise therapy plays an essential role in tackling the global burden of obesity. Optimizing recommendations in individual training therapy requires that the essential parameters heart rate HR(IAT) and work load (W/kg(IAT) at individual anaerobic threshold (IAT) are known. Performance diagnostics with blood lactate is one of the most established methods for these kinds of diagnostics, yet it is also time consuming and expensive.

METHODS

To establish a regression model which allows HR(IAT) and (W/kg(IAT) to be predicted without measuring blood lactate, a total of 1234 performance protocols with blood lactate in cycle ergometry were analyzed. Multiple linear regression analyses were performed to predict the essential parameters (HR(IAT)) (W/kg(IAT)) by using routine parameters for ergometry without blood lactate.

RESULTS

HR(IAT) can be predicted with an RMSE of 8.77 bpm (p < 0.001), R² = 0.799 (|R| = 0.798) without performing blood lactate diagnostics during cycle ergometry. In addition, it is possible to predict W/kg(IAT) with an RMSE (root mean square error) of 0.241 W/kg (p < 0.001), R² = 0.897 (|R| = 0.897).

CONCLUSIONS

It is possible to predict essential parameters for training management without measuring blood lactate. This model can easily be used in preventive medicine and results in an inexpensive yet better training management of the general population, which is essential for public health.

The influence of social support on the physical exercise behavior of college students: The mediating role of self-efficacy

OBJECTIVES

To study the influencing factors on college students' physical exercise behavior and the mediating relationship of self-efficacy based on the theory of social support and self-efficacy; to provide theoretical support and practical guidance for college students engaging independently in physical exercise.

METHODS

A total of 1,440 college students from six universities in the Inner Mongolia Autonomous Region of China were selected as the research objects, and three scales (Self-Efficacy Scale, Social Support Scale, and Physical Exercise Rating Scale) were used to construct a structural equation model.

RESULTS

(1) A comprehensive sports facility environment is conducive to college students' physical activities and the emotional support of friends and family and the campus cultural atmosphere cannot be ignored. (2) Peer support has a direct impact on physical exercise behavior, family support and school support indirectly affect college students' physical exercise behavior, based on the intermediary role of self-efficacy. (3) According to the total effect, social support was ranked as school support (0.444), peer support (0.312), and family support (0.145).

CONCLUSION

Social support not only directly affects physical exercise behavior but also indirectly affects physical exercise behavior based on the mediating effect of self-efficacy.

The Association between Self-Rated Health and Health Self-Management Ability of Healthcare Undergraduates: The Chain Mediating Roles of eHealth Literacy and Resistance to Peer Influence

Health self-management is important for healthcare undergraduates who are at the late adolescent or early adulthood stage, and will play an important part in health promotion for the general population. Previous research has shown that perceived health status affects health self-management. However, few studies have uncovered the mechanism between self-rated health and health self-management among healthcare undergraduates. Based on social ecology theory and Pender's health promotion model, this study aimed to explore the associations between health self-management ability, self-rated health, eHealth literacy and resistance to peer influence of healthcare undergraduates, with a focus on identifying the mediating effects of eHealth literacy and resistance to peer influence. A cross-sectional study was conducted among 515 healthcare undergraduates in Eastern China between July and September 2021. Serial mediation analysis was performed using Haye's Model 6 PROCESS macro to examine the mediating effects. The study found that health self-management ability was significantly and positively correlated with eHealth literacy, resistance to peer influence and self-rated health. Self-rated health had a direct and positive predictive effect on health self-management, with a direct effect value of 0.654. eHealth literacy and resistance to peer influence played both an independent mediating and a chain-mediating role in the mechanism of self-rated health affecting health self-management among healthcare undergraduates, with indirect effect values of 0.085, 0.101, and 0.013, respectively. The results suggest that eHealth literacy and resistance to peer influence could be intervention targets in programs for improving these students' health self-management ability.

The Relationship between Social Support and Exercise Adherence among Chinese College Students during the COVID-19 Pandemic: The Mediating Effects of Subjective Exercise Experience and Commitment

This study aimed to investigate the relationship between social support and exercise adherence among Chinese college students during the COVID-19 pandemic, as well as the mediating effects of subjective exercise experience and commitment in the relationship, in order to provide a reference for improving exercise adherence among Chinese college students during the COVID-19 pandemic. The Perceived Available Support in Sport Questionnaire, Subjective Exercise Experience Scale, Exercise Commitment Scale, and Exercise Adherence Scale were administered to 459 eligible college students in Jinan, Shandong Province, through convenience sampling. Results showed that social support positively predicted exercise adherence among college students. The separate and joint mediating effects of subjective exercise experience and commitment between social support and college students' exercise adherence were significant. This study demonstrated that social support can positively predict exercise adherence among college students. In addition, subjective exercise experience and commitment played mediation roles between social support and college students' exercise adherence, both separately and jointly. Therefore, enhancing social support and improving the level of subjective exercise experience and exercise commitment among college students may be an effective strategy for improving exercise adherence among Chinese college students during the COVID-19 pandemic.