OBJECTIVES: This meta-analysis sought to determine the effect of exercise training on improving the health-related quality of life of patients with type 2 diabetes. METHODS: Three sources of scientific information were searched, including PubMed, Scopus, and the Cochrane Library. Google Scholar, was also searched manually. This search was limited to studies published in English until July 2021. RESULTS: The exercise training has positive effects on improving the health-related quality of life in diabetic patients and the effect size was equal to hedges' g = 0.57 and the confidence interval was between (0.44 and 0.69). CONCLUSION: The results indicate the favorable effects of exercise training on the health-related quality of life of patients with diabetes. It is also necessary to talk more about the effect of exercise on the health of patients with diabetes in the area of health policy and include it in health guidelines.
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