The purpose of this study was to investigate the effects and mechanisms of physical activity on mobile phone addiction among college students. A total of 9406 students, ranging from freshmen to seniors, from 35 colleges in four regions of Jiangsu Province were selected using the whole group sampling method. Questionnaires, particularly the International Physical Activity Questionnaire—Long Form (IPAQ), the positive psychological capital scale (PPQ), the social adjustment diagnostic questionnaire (SAFS), and the mobile phone addiction index scale (MPAI), were administered. We found that physical activity negatively predicted mobile phone addiction among university students. Social adaptation partially mediates between physical activity and mobile phone addiction among university students, with separate mediation of psychological capital playing no indirect role. Psychological capital and social adjustment mediate the chain between physical activity and mobile phone dependence among college students. Our findings suggest that physical activity is an important external factor influencing college students’ mobile phone dependence, and it indirectly affects university students’ mobile phone addiction through psychological capital and social adaptation. Improving the physical activity level of college students, enhancing their psychological capital, and promoting improved social adaptation are important ways to prevent mobile phone addiction among college students.

Youth subjective well-being is enhanced not only from physical exercise but also from internet use. Based on the 2017 China General Social Survey (CGSS) data, the Bootstrap method was used to examine the mechanisms of the effects of physical exercise and internet use on youth subjective well-being. In this study, the questionnaire data of 619 Chinese young people (18–35 years old) were selected as the sample source. It was found that physical exercise (2.881 ± 1.352) and internet use (4.544 ± 0.756) had positive effects on youth subjective well-being (88.762 ± 11.793). Life satisfaction (2.253 ± 0.826) partially mediated the development of physical exercise and internet use on subjective well-being, with indirect effects of 34.1% and 30.4%, respectively. A social mindset (10.181 ± 1.966) played a moderating role in the relationship between physical exercise and youth subjective well-being and internet use and youth subjective well-being in both groups. The positive effects of physical exercise and internet use on youth subjective well-being gradually increased with the improvement in social mindset. This study revealed the mechanisms of physical activity and internet use on subjective well-being and that life satisfaction and the social mindset of youth are essential factors influencing subjective well-being.

Objective: To explore the relationship between psychological stress and the emotional state of Chinese college students and the moderating effect of physical exercise. Methods: Students in a university in Jiangsu Province were randomly selected for the survey, and questionnaires were administered using the Physical Activity Rating Scale, the Profile of Mood States, and the Chinese College Student Psychological Stress Scale. A total of 715 questionnaires were distributed, and 494 valid questionnaires were returned. Among the students, there were 208 (42.1%) males and 286 (57.9%) females, with a mean age of 19.27 years (SD = 1.06). Results: We found a significant negative correlation between physical exercise and psychological stress (r = −0.637, p < 0.001); a significant negative correlation between physical exercise and emotional state (r = −0.032, p < 0.001); and a significant positive correlation between psychological stress and emotional state (r = 0.51, p < 0.001). Physical exercise negatively moderates the relationship between psychological stress and emotional state (B = −0.012, p < 0.01, ΔR² = 0.007). Conclusion: Physical exercise is negatively correlated with both emotional state and psychological stress. Physical exercise can reduce the influence of psychological stress on emotional state and promote emotional health.

Objectives: Chronic psychological stress among college students increases sensitivity to negative emotional stimuli. Emotion regulation, a critical coping mechanism, draws upon cognitive resources and may impair subsequent cognitive control. Physical exercise has been proposed as an effective intervention to enhance both emotional and cognitive functioning. This study investigated whether a 12-week structured exercise intervention could modulate emotion regulation outcomes and improve cognitive control in college students experiencing high psychological stress. Methods: Forty-seven college students, identified as highly stressed via the Chinese College Students Psychological Stress Scale, were randomly assigned to either an exercise group (n = 25) or a control group (n = 22). The exercise group participated in supervised rope-jumping sessions three times per week for 40 min, following ACSM guidelines, over 12 weeks. Before and after the intervention, participants completed tasks measuring two emotion regulation strategies—expressive suppression and cognitive reappraisal—and tasks assessing cognitive control. Results: A significant group × time × strategy interaction emerged for subjective emotional valence: following the intervention, the exercise group reported attenuated negative valence under expressive suppression. For subjective arousal, post-intervention ratings decreased under suppression but increased under reappraisal in the exercise group, suggesting strategy-specific modulation by physical activity. Regarding cognitive control, electrophysiological measures revealed that the P3 component showed a significant interaction: the exercise group exhibited enhanced P3 amplitudes in congruent versus incongruent conditions after the intervention. Moreover, P3 interference scores were significantly reduced post-intervention in the exercise group compared to both its pre-intervention baseline and the control group. Conclusions: A 12-week aerobic exercise intervention enhanced emotion regulation outcomes and improved cognitive control under high psychological stress. These findings underscore the utility of physical exercise as a non-pharmacological approach to bolster cognitive–affective resilience in young adults.

Elderly patients with Chronic Obstructive Pulmonary Disease (COPD) commonly suffer from anxiety, depression, and impaired health-related quality of life (HRQOL). This review evaluated the effects of mind-body exercises on these outcomes and exercise tolerance in COPD patients aged ≥ 60 years. Following PRISMA guidelines, we systematically searched PubMed, Embase, PsycINFO, Cochrane Library, and Web of Science (inception-January 2025) for randomized controlled trials (RCTs) comparing mind-body exercise versus usual care. Outcomes were anxiety, depression, HRQOL (St. George's Respiratory Questionnaire or Chronic Respiratory Questionnaire), and exercise tolerance (6-minute walk test). Meta-analyses used random-effects models, reporting Standardized Mean Differences (SMDs) or Mean Differences (MDs) with 95 % confidence intervals (CIs). Evidence certainty was assessed (GRADE framework). Seventeen RCTs were included. Mind-body exercise reduced anxiety (SMD = -0.59, 95 % CI: -0.84 to -0.34; high certainty) and depression (SMD = -0.34, 95 % CI: -0.54 to -0.14; high certainty). HRQOL improved significantly (SMD = -0.79, 95 % CI: -1.14 to -0.44; low certainty), with exploratory findings showing greater improvement in Southeast Asian patients (SMD = -3.41). Exercise tolerance increased (MD = 44.23 m, 95 % CI: 26.12-62.34), exceeding minimal clinically important differences. Intervention duration for depression was a key moderator, with greater benefits in patients with interventions lasting ≥ 3080 min. Mind-body exercise reduces anxiety and depression, improves health-related quality of life, and increases exercise tolerance in elderly patients with COPD. For anxiety and depression, benefits are significantly enhanced with intervention durations ≥ 3080 minutes. Incorporating mind-body exercise into comprehensive COPD management for older adults is recommended.

Background: This study aimed to examine the relationship between physical activity (PA) and smartphone addiction among Chinese college students, with the goal of understanding whether higher levels of PA can mitigate the risk of smartphone addiction. Methods: The study adopted a questionnaire and psychological measurement method and used the International Physical Activity Questionnaire (IPAQ) and Smartphone Addiction Scale (SAS) to assess the PA levels and smartphone dependence of 9,569 college students. By considering the latent category structure of individual smartphone addiction, the study conducted a deep analysis of the impact of different intensities of PA on smartphone addiction. Results: The PA level among Chinese college students was generally high ( t = − 97.66, p < 0.001). However, the prevalence of smartphone dependence was also notably high, affecting 35.9% of students. The necessity of PA’s impact on smartphone dependencewas not significant ( p > 0.05), indicating that PA was significantly associated with lower levels of smartphone dependence. Detailed analysis revealed that smartphone addicts experienced the highest level of loss of control, and significantly greater than average levels of withdrawal, inefficiency, and escapism ( p > 0.05). College students with higher PA levels tended to have lower smartphone dependence than those with low PA levels ( b = − 0.422, p < 0.05, OR = 0.656). Conclusion: The results suggested that positive PA can effectively alleviate the negative impacts of smartphone addiction. Therefore, interventions aimed at increasing PA could be beneficial in reducing smartphone dependence.