Background: Increasing studies have documented taichi’s usefulness in physical and psychological health in various participants, especially patients or the elderly. However, there is a need for a systematic review to evaluate its effects and health benefits among college students.Objective:The present study aims to evaluate the current literature surrounding the effects of taichi on physical and psychological health among college students and identify the experimental areas for future research to establish guidelines for learning and teaching taichi in university.Methods: The literature search involved several databases (PubMed, EBSCOhost, Web of Science, Scopus, and China National Knowledge Infrastructure). Subsequent research utilised the Preferred Reporting Items for Systematic Reviews and PRISMA checklist. In addition, the “QualSyst” tool assessed the quality of full-text articles.Results: A total of 22 articles were analysed, out of which eight were strong, and 14 were of moderate quality. It is challenging to conduct a meta-analysis since the research contents were distributed differently. The general finding demonstrated that Taichi interventions have beneficial effects on college students. For example, the physical and psychological health benefits compared to other control groups include balance, leg strength, flexibility, cardiopulmonary functions, reducing stress, anxiety, and depression, and improving attention. However, there are some uncertain parameters in a state of poor or no evidence, such as upper strength, mood, and psychoticism.Conclusion: Overall, this study shows that Taichi exercise is beneficial for college students compared to the control group. Evidence of health benefits for females is more than males. In addition, the current evidence showed that the effectiveness of taichi does not match some other sports such as Pilates, Yoga, Mindfulness courses, and even bodybuilding exercise. This research analyzed the mind-body mechanism of included studies. It revealed that it is difficult for college students, as a beginner of Taichi, to regulate an even breathing and quiet mind while maintaining low posture movements. Therefore, this study assumes that relaxation theories and approaches of Taichi that are easier to understand and closer to Chinese traditional Taichi theory are more appropriate in the research trials compared with coordination theory.Systematic review registration:https://www.crd.york.ac.uk/PROSPERO/, identifier CRD42021278032.

Background and aimsAmong the large number of studies on smartphone addiction, only a few randomized controlled trials on exercise and psychological interventions for smartphone addiction by university students have been published. This study aims to systematically investigate the impact of exercise and psychological interventions on smartphone addiction among university students.MethodsThe PRISMA guidelines were adopted for this systematic literature review. Prominent academic databases such as Web of Science, PubMed, ProQuest, Cochrane Library, China National Knowledge Infrastructure (CNKI) and PsycINFO were searched to find eligible studies published before Aug 2021. The overall quality of the articles was checked using the “QualSyst” tool by Kmet et al.ResultsFrom among 600 papers, 23 met the inclusion criteria and were incorporated into our systematic review. All of the studies were randomized controlled trials. The following thematic areas emerged as a result of the content analysis: study selection and design, as well as study characteristics (participants, intervention, comparisons, and outcomes).Discussion and conclusionThe literature on exercise and psychological interventions for smartphone addiction is scarce. There is a need to introduce new interventions and to validate the effectiveness of combined interventions. Our findings suggest that exercise and psychological interventions may help to reduce smartphone addiction. This combination was more effective compare to exercise or psychological intervention on mental health and addiction among university students. Future research should combine exercise and psychological interventions, focusing on university students, especially females, who are vulnerable to smartphone addiction. Further studies should focus on the cross-section of neuropsychology, cognitive psychology, and sports science to provide combined interventions in physiological and psychological direction.Systematic review registrationhttps://www.crd.york.ac.uk/prospero, identifier: CRD42021278037.

T h e systematic review and meta-analysis aimed to assess the effects of HIIT on the health and skill-related physical fitness of teamsport athletes to enhance the overall performance of team sports participants. P: athletes in team sports; I: high-intensity interval training; C: general training or other training; O: maximal oxygen uptake, repetitive sprint capacity, vertical jump capacity, agility, and muscular strength and INPLASY 1 International Platform of Registered Systematic Review and Meta-analysis Protocols

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