A substantial body of empirical evidence reveals that physical activity is associated with a wide range of positive physical and mental health outcomes. However, an absence of comprehensive syntheses is observed concerning the varying effects of different exercise intensities on the improvement of physical health among children and adolescents. The aim of this review is to systematically investigate the effects of different exercise intensities on the physical fitness of children and adolescents, to analyses the optimal exercise intensities for improving physical fitness, and to provide a relevant theoretical basis for optimizing school physical education curricula. A systematic search strategy was used in this study in four online databases (PubMed, Scopus, EBSCO and Web of Science). Intervention studies that met the inclusion criteria underwent a thorough screening process, and their methodological quality was assessed utilizing the PEDro scale. The selected literature was systematically analyzed and evaluated through induction, summary, analysis, and evaluation. These findings indicate that high-intensity exercise training exerts significant positive effects on body composition, cardiopulmonary function and muscle fitness in children and adolescents. Therefore, we suggest that schools should focus on high-intensity sports in their physical education curriculum, which can further improve the student's PHYSICAL FITNESS.

Background: Anxiety, depression, and stress are the most common mental health problems in childhood. Exercise interventions in childhood help to promote mental health. Objective: To investigate the relationship between exercise interventions and improvement of negative emotions such as anxiety, depression, and stress in children (5–12 years). Methods: Articles were searched in five electronic databases from their inception to January 2023. The meta-analysis was performed using Stata 16.0. Results: Twenty-three intervention studies included 6830 children. 1) The exercise intervention group was significantly better than the control group in improving negative emotions (Standard Mean Difference SMD=-0.25, 95% Confidence Intervals CI: -0.34 to -0.15, P < 0.01). Exercise intervention improved different kinds of negative emotions: anxiety (SMD=-0.19, 95% CI: -0.33 to -0.06, P < 0.01), depression (SMD=-0.22, 95% CI: -0.43 to -0.01, P < 0.01), and stress (SMD=-0.33, 95% CI: -0.53 to -0.14, P < 0.01); it was most effective at relieving problematic stress. Exercise interventions lasting 20–45 min were most effective in improving children’s negative emotions (SMD=-0.38, 95% CI: -0.56 to -0.20, P < 0.01). An exercise intervention period of 10 weeks was more effective in improving children’s negative mood (SMD=-0.26, 95% CI: -0.34 to -0.17, P = 0.274). Conclusion: Exercise interventions may improve negative emotions such as anxiety, depression, and stress in children. These findings may have clinical implications for children with negative affect. However, these studies showed a large heterogeneity, and the results should be interpreted with caution. Future studies should report the variability of exercise interventions by gender, age group, and type, intensity, and place of exercise.

Background: People were isolated at home during the COVID-19 pandemic and were restricted from going outside, leaving them with the option of physical activity at home. The purpose of this paper is to examine how home isolation during an epidemic changes adult lifestyle and health behaviors and the role of physical activity during home isolation in improving adult dysphoria. Methods: Four major databases were searched and the 21 final included papers on home physical activity during the epidemic were evaluated. The literature was analyzed and evaluated using generalization, summarization, analysis, and evaluation methods. The findings revealed that home isolation during the epidemic changed the lifestyle and physical activity behavior of adults. Participation in physical activity varied among different levels of the population during home isolation for the epidemic. In addition, physical activity in home isolation during the epidemic helped improve adults’ poor mood. The negative impact of prolonged home isolation on the health of the global population cannot be ignored, and more encouragement should be given to diversified indoor physical activities to maintain physical and mental health. In addition, there is a need to develop more personalized technology tools for physical activity supervision regarding use.

This study examined the associations between selected cues encountered in the context of NBA stars’ China tours and college students’ sports consumption intention, and tested the hypothesized mediating role of perceived value. Drawing on Stimulus-Organism-Response (S-O-R) theory and the Elaboration Likelihood Model (ELM), this study constructed a mediation model in which information quality, players’ professional achievements, and players’ personal charisma were treated as antecedent variables, perceived value as the mediating variable, and sports consumption intention as the outcome variable. A cross-sectional questionnaire survey was conducted among 1,024 college students in Chongqing. Reliability and validity tests and Pearson correlation analysis were performed, followed by an integrated path analysis in AMOS 28.0 in which the three antecedent variables were entered simultaneously. Specific indirect associations through perceived value were evaluated using 5,000 bias-corrected bootstrap resamples. The results showed significant positive correlations among information quality, players’ professional achievements, players’ personal charisma, perceived value, and sports consumption intention. In the integrated model, information quality, players’ professional achievements, and players’ personal charisma were each positively associated with perceived value and sports consumption intention, while perceived value was positively associated with sports consumption intention. Significant indirect associations through perceived value were observed for information quality [ B = 0.090, 95% BC CI (0.068, 0.115)], players’ professional achievements [ B = 0.126, 95% BC CI (0.089, 0.169)], and players’ personal charisma [ B = 0.183, 95% BC CI (0.128, 0.246)]. Demographic variables showed no significant differences in sports consumption intention. These findings suggest that perceived value mediates the associations between perceived tour-related attributes and sports consumption intention among the surveyed college students in Chongqing.

A substantial body of empirical evidence reveals that physical activity is associated with a wide range of positive physical and mental health outcomes. However, a dearth of comprehensive syntheses is observed concerning the varying effects of different exercise intensities on the improvement of physical health among children and adolescents. This review aims to systematically study the effects of different exercise intensities on the physical fitness of children and adolescents, to determine the optimal exercise intensity for improving physical fitness and health, and to provide a relevant theoretical basis for optimal the physical education curriculum in schools.This study employed a systematic search strategy across four online databases (PubMed, Scopus, EBSCO, and Web of Science). Intervention studies that met the inclusion criteria underwent a thorough screening process, and their methodological quality was assessed utilizing the PEDro scale. The selected literature was systematically analyzed and evaluated through induction, summary, analysis, and evaluation. These findings indicate that high-intensity exercise training exerts significant positive effects on body composition, cardiopulmonary function, blood pressure, and muscle health in children and adolescents. Therefore, we suggest that schools should focus on high-intensity sports in their physical education curriculum, which can further improve the students' physical fitness and health.