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Objective: To evaluate the efficacy of Traditional Chinese Exercises (TCEs) in treating knee osteoarthritis (KOA)., Methods: Four databases without language or publication status restrictions were searched until April 1, 2022. Based on the principle of Population, Intervention, Comparison, Outcomes and Study design, the researchers searched for randomized controlled trials of TCEs in treating KOA. The Western Ontario and McMaster Universities Osteoarthritis (WOMAC) pain was defined as the primary outcome, whereas stiffness and physical function were the secondary outcomes. Subsequently, two researchers conducted the process independently, and the data were analyzed using the RevManV.5.3 software., Results: Overall, 17 randomized trials involving 1174 participants met the inclusion criteria. The synthesized data of TCEs showed a significant improvement in WOMAC pain score [standardized mean difference (SMD) = -0.31; 95% confidence interval (CI): -0.52 to -0.10; p = 0.004], stiffness score (SMD = -0.63; 95% CI: -1.01 to -0.25; p = 0.001) and physical function score (SMD = -0.38; 95% CI: -0.61 to -0.15; p = 0.001) compared with the control group. Sensitivity analyses were performed to determine the combined results' stability, which was unstable after excluding articles with greater heterogeneity. A further subgroup analysis showed that it might be the reason for the heterogeneity of the different traditional exercise intervention methods. Additionally, it showed that the Taijiquan group improved pain (SMD = 0.74; 95% CI: -1.09 to 0.38; p < 0.0001; I 2 = 50%), stiffness (SMD = -0.67; 95% CI -1.14 to 0.20; p = 0.005) and physical function score (SMD = -0.35; 95% CI: -0.54 to 0.16; p = 0.0003; I 2 = 0%) better than the control group. The Baduanjin group improved stiffness (SMD = -1.30; 95% CI: -2.32 to 0.28; p = 0.01) and physical function (SMD = -0.52; 95% CI: -0.97 to 0.07; p = 0.02) better than the control group. However, the other interventions showed no difference compared with the control group., Conclusion: This systematic review provides partial evidence of the benefits of TCEs for knee pain and dysfunction. However, due to the heterogeneity of exercise, more high-quality clinical studies should be conducted to verify the efficacy., Systematic Review Registration: https://inplasy.com/inplasy-2022-4-0154/, identifier: International Platform of Registered Systematic Review and Meta-analysis Protocols (INPLASY) [INPLSY202240154]., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Zhang, Huang, Guo, Kong, Li, Zhu and Fang.)

Background: With the development of rehabilitation medicine, exercise therapy has gradually become one of the methods to prevent and treat cardiovascular diseases. It is widely used in clinic because it can further reduce the mortality rate, improve clinical symptoms, restore the activity ability of the body, improve the quality of life of patients and reduce the hospitalization rate. Traditional Chinese exercises have developed rapidly in recent years, which mainly include Baduanjin, Tai Ji, etc. However, meta-analyses of all types of exercises are not well characterized., Objectives: To evaluate the effect of traditional Chinese exercises (TCEs) on the rehabilitation of patients with chronic heart failure (CHF) using a meta-analysis., Methods: A systematic search of randomized controlled trials (RCTs) on TCEs for patients with CHF in 13 databases (PubMed, China National Knowledge Infrastructure, etc.). Meta-analysis was performed using Review Manager software (version 5.3) after two investigators independently screened the studies, assessed the quality of the studies, and extracted the data., Results: Meta-analysis of 21 randomized controlled trials which involved 1,665 patients with chronic heart failure showed that practicing TCEs was effective in improving patients' physiological outcomes such as VO 2 max [MD = 2.14, 95% CI (1.02, 3.26), P < 0.001], AT [MD = 1.61, 95% CI (1.06, 2.16), P < 0.001], and left ventricular ejection fraction [MD = 2.60, 95% CI (1.17, 4.02), P < 0.001]. Non-physiological outcomes benefited from the application of TCEs: 6-min walking distance [MD = 38.55, 95% CI (36.67, 40.42), P < 0.001], quality of life [MD = 5.52, 95% CI (3.17, 7.88), P < 0.001], and single-item TCM symptom scores in CHF patients: tiredness and fatigue [MD = 0.78, 95% CI (0.03, 1.53), P = 0.04], shortness of breath [MD = 0.44,95% CI (0.26, 0.62), P < 0.0001], facial puffiness and limb swelling [MD = 0.44,95% CI (0.12, 0.76), P = 0.007], palpitations [MD = 0.68,95% CI (0.14, 1.21), P = 0.01] were improved., Conclusions: TCEs improved several recovery indicators, heart failure-related clinical symptoms, quality of life, and physiological indicators in patients with CHF. It is worthwhile to expand the participants for practical application in clinical practice, but the existing evidence is insufficient and the heterogeneity of outcome is large. Therefore, more high-quality clinical trials are needed to support these results., Systematic Review Registration: PROSPERO, identifier [CRD42022383246]., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Dai, Luo, Hu, Chen, Yang, Geng, Li and Liao.)