Parents of children with ASD experience a higher incidence of mental health difficulties, including stress, depression, and anxiety, than parents of children without ASD. According to studies related to ASD, parent–child physical activity programs are an effective approach to encourage both parents and their children with ASD to exercise together, thus improving the mental health of parents due to this interactive family activity. The purpose of the present study was to explore the effects of this web-based parent–child physical activity program on the mental health of parents of children with ASD. A total of 94 parent–child pairs consented to participate in this study, and 75 parent–child pairs completed the study. Three instruments—DASS-21, PSI-4-SF, and WHOQOL-26—were used to measure mental health, parental stress, and quality of life, respectively. A randomized controlled trial design was implemented to examine the effectiveness of the 10-week web-based parent–child physical activity program on improving the mental health of parents of children with ASD. The results showed that after the 10-week parent–child physical activity program, there were significant differences in overall DASS-21 and PSI-4-SF for the experimental group, compared with control group (p < 0.05), which indicated that the parent–child physical activity program has a positive influence on mental health in parents of children with ASD. One sub-area of WHOQOL-26 between the experimental and control groups across pre-/post-testing intervals also showed greater reductions in the item of psychological health (p < 0.05). In conclusion, the findings demonstrated the efficacy of the web-based parent–child physical activity program for improving mental health in parents of children with ASD.

Background: High-intensity interval training (HIT) is a time-efficient strategy to improve metabolic health in children, but its impact on inflammatory markers is still unclear. Therefore, we conducted a meta-analysis to examine the role of HIT on pro-inflammatory cytokines including C-reactive protein (CRP), interleukin 6 (IL-6), and tumor necrosis factor-alpha (TNF-α) in children with overweight/obesity. Methods: A meta-analysis was conducted following PRISMA guidelines. PubMed, Web of Science, Scopus, and Embase were searched up to 31 July 2025, for studies involving children with overweight/obesity aged 6 to 18 years. Randomized controlled trials and non-randomized controlled trials with outcome measurements that included CRP, IL-6, and TNF-α were included. Random-effects models were used to aggregate a mean effect size (ES) with 95% confidence intervals (CI), and potential moderators were explored. Results: In total, 768 participants from 15 studies were included. HIT significantly improved CRP (574 participants, 13 studies, SMD = −0.63, 95% CI: −1.02 to −0.24, p < 0.01) when compared to control group/pre-intervention. There were no significant effects on IL-6 and TNF-α, and no differences when compared to moderate-intensity training. Subgroup analyses indicated greater effectiveness in intervention duration, work-and-rest ratio, and work time were the significant moderators (p < 0.05). Conclusions: High-intensity interval training is effective for reducing CRP levels in children with obesity. Intervention duration, work-and-rest ratio, and work time can affect the intervention effects of HIT.