Objective: This study aims to evaluate the intervention effect of concurrent training on children with malignant tumors to provide evidence for prescribing exercise for children with malignant tumors.Methods: Twelve databases were searched from inception to October 15, 2022. Two researchers independently screened the literature, evaluated the quality, extracted the data, and performed the meta-analysis using R.Result: A total of nine randomized controlled trials involving 371 children were included in this study. The meta-analysis revealed that muscle strength was significantly greater in the exercise group compared to the usual care group [SMD = 0.26, 95% CI (0.04, 0.48), P = 0.023], with subgroup analysis showing no significant difference in upper limb [SMD = 0.13, 95% CI (−0.17, 0.43), P = 0.318] and a considerable difference in lower limb strength [SMD = 0.41, 95% CI (0.08, 0.74), P = 0.015]. Physical activity [SMD = 0.57, 95% CI (0.03, 1.1), P = 0.038], timed up and down stairs test [SMD = −1.22, 95% CI (−2.04, −0.4), P = 0.004], 6-min walking ability [SMD = 0.75, 95% CI (0.38, 1.11), P < 0.01], quality of life [SMD = 0.28, 95% CI (0.02, 0.53), P = 0.033], and cancer-related fatigue [SMD = −0.53, 95% CI (−0.86, −0.19), P = 0.002] were significantly better than the usual care group. There were no significant differences in peak oxygen uptake [SMD = 0.13, 95% CI (−0.18, 0.44), P = 0.397], depression [SMD = 0.06, 95% CI (−0.38, 0.5), P = 0.791], and withdrawal rates [RR = 0.59, 95% CI (0.21, 1.63), P = 0.308] between the two groups.Conclusion: Concurrent training could improve physical performance for children with malignancy but had no significant effect on mental health. Because the quality level of evidence is mostly very low, future high-quality randomized controlled trials are required to confirm these findings.Systematic review registration: https://www.crd.york.ac.uk/PROSPERO/display_record.php?RecordID=364140, identifier CRD42022308176.

This study discusses the remote martial arts motion capture research based on social media, and introduce the application of martial arts motion capture technology, including teaching, training and competition. The paper also discusses the development status of Chinese wushu distance education, Including the challenges in teaching quality, curriculum, teachers and technical support. In order to solve these problems the article puts forward a series of measures, including strengthening the standardization construction, curriculum and teaching materials construction, teachers construction and technical support update. In addition, the paper also introduces the principle, data preprocessing, feature extraction and optimization method of remote martial arts motion capture technology based on intelligent terminal. Based on intelligent terminal, the remote martial arts motion capture evaluation system is developed. The necessary tools include human posture recognition tool, motion evaluation tool and multi-view motion capture system. The influencing factors of the experimental results include motion capture accuracy, motion recognition rate, user experience, system stability and evaluation accuracy. The system has the application value and significance of realizing technology digitization, providing movement evaluation, promoting distance teaching, promoting the popularization of martial arts and expanding the application in other fields.

Background: Health Qigong is widely used for health promotion in older adults. This study aimed to systematically evaluate its effects on physical function, psychological well-being, and quality of life (QoL), alongside the moderating effects of intervention characteristics. Methods: Seven databases were systematically searched (up to May 2025). Twenty-two randomized controlled trials involving 1,791 older adults were included. Risk of bias was assessed using Cochrane RoB, and meta-analyses were performed using RevMan 5.4 and Stata 18.0. Results: Health Qigong significantly improved 6-min walk distance (MD = 18.05 m, p = 0.03), balance (SMD = 1.70, p = 0.004), depressive symptoms (SMD = −0.64, p = 0.004), and QoL (SMD = 0.76, p = 0.03), but showed no significant effect on activities of daily living (ADL). Subgroup analyses suggested that while Qigong’s benefits on most outcomes were comparable to conventional exercise, it may have greater potential in enhancing QoL. Additionally, regimens with high frequency (≥3 sessions/week), long duration (≥12 weeks), and moderate session length (<60 min) appeared to maximize benefits for alleviating depression and improving QoL. Conclusion: Health Qigong is an effective intervention for promoting multidimensional health in older adults. While most of its benefits are comparable to conventional exercise, Health Qigong may offer unique advantages in improving QoL. For clinical and community practice, a regular regimen of “high frequency, long duration, and moderate session length” is recommended, with flexible adaptations based on individual health conditions. Systematic review registration: https://www.crd.york.ac.uk/PROSPERO/view/CRD420251112609 .

Background: Multimorbidity imposes a substantial burden on older populations, yet research neglects how physical activity (PA) relates to severe disease burden in established cases. Moreover, the efficacy of combining low-cost PA assessments with routine indicators to identify high-burden patients in resource-constrained settings remains unclear. This study explores associations between PA levels and severe multimorbidity (≥4 conditions), evaluating PA’s utility for auxiliary status identification via interpretable machine learning. Methods: This cross-sectional study included the CHARLS 2018 sample (n = 10,130) and a supplementary community sample (n = 315). Multivariable logistic regression evaluated associations between PA and severe multimorbidity. An XGBoost model assessed routine indicators’ classification performance, utilizing SHAP values to analyze feature contributions to the model. Results: PA was inversely associated with severe multimorbidity specifically among those meeting the WHO criteria (MPA > 300 or VPA > 150 min/week) for additional health benefits (OR = 0.80, 95% CI: 0.73–0.88, p < 0.001), especially in adults ≥60 years. Although models using solely routine indicators showed modest discrimination (AUC = 0.673), SHAP analysis revealed PA as the foremost modifiable behavioral feature in classification, with local patterns aligning closely with regression findings. Conclusions: Among middle-aged and older adults with multimorbidity, PA levels exhibit significant categorical associations with severe multimorbidity. In community management, low-cost PA evaluation serves as an auxiliary indicator to preliminarily classify high-burden individuals. Given potential reverse causality, future longitudinal cohorts are required to clarify causal relationships, providing direct evidence for daily activity management.