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The Effect of Exercise Training on Intramuscular Adipose Tissue in Individuals with and without Chronic Diseases: A Systematic Review and Meta-analysis
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B Ebadi    , M Khalafi , MA Delavari , E Shahabpour |
| Department of Sport Sciences, Faculty of Humanities Sciences, University of Hormozgan, Hormozgan, Iran. , b.ebadi@hormozgan.ac.ir |
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Abstract: (358 Views) |
Introduction: Fat infiltration into the muscles and the accumulation of intramuscular adipose tissue (IMAT) are associated with the development of insulin resistance, which tends to increase with aging and metabolic disorders. In contrast, exercise training may lead to a decrease in IMAT. Therefore, the present meta-analysis aims to investigate the effect of exercise training on IMAT in individuals with various health conditions and ages. Materials and Method: A comprehensive search was conducted in the Web of Science, Scopus, and PubMed databases from their inception to October13 2023. The inclusion criteria for the meta-analysis included studies investigating the effect of exercise training with an intervention lasting more than two weeks, measuring IMAT values, involving human subjects of any gender, age, or health status. Standardized mean difference (SMD) and 95% confidence intervals (CIs) were used to calculate the effect size using random-effect model. Results: Thirty-four interventions derived from a total of 24 studies comprising 1091 subjects were included in the present meta-analysis. The results showed that exercise significantly reduced IMAT tissue with a large effect size [(SMD= -0.67), CI= 0.42 to 0.93]. Additionally, body weight, body fat percentage, and blood glucose levels significantly decreased. Conclusion: These findings suggest that regardless of the type of exercise, health status, and age of subjects, exercise training is an effective intervention to reduce IMAT, which may play effective significant role in improving metabolic status.
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| Keywords: Exercise training, Intramuscular adipose tissue, Chronic diseases |
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Full-Text [PDF 1150 kb]
(174 Downloads)
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Type of Study: Review |
Subject:
Exercise
Received: 2024/02/14 | Accepted: 2024/05/5 | Published: 2023/09/1
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