Document Type : Review Article
Authors
Abstract
Results from meta-analyses focused on patients MetS are not conclusive because of no specifically focusing on the overall metabolic risk and papers published up to 2011. Therefore, this meta-analysis was determined the effect of aerobic training on overall metabolic syndrome z score and its indices MetS patients. RCTs and CTs that investigated the effect of, at least, 4 weeks aerobic training in adults with MetS, published in a peer-reviewed journal up to 2015 were included. Primary outcome measure was MetS z score and the MetS factors were secondary outcomes. Random-and fixed-effect models were used for analyzing the data and the effect size were reported as standard difference in means and between 95% confidence intervals(CIs). Heterogeneity between trial results was tested with a standard Chi-squared(v2) test. A value for I2[50% has been considered to be substantial heterogeneity. Eight trials were included to investigate about primary outcome, involving 561 participants (288 in aerobic training group and 273 in control group). MetS Z score had -0.33 standard deviation from mean. For secondary outcomes, standard deviation from their mean were -0.36 for FBS, 0.03 for HDL, -0.23 for MAP, -0.1 for TG and -0.40 for WC. Mild effect of aerobic training on overall MetS risk and most of the associated cardiovascular risk factors persists on clinical benefits of aerobic training in MetS patients. However, quantifying the effects of the aforementioned factors and other variables such as age, gender, race and training parameters in future meta-analyses could be applicative and useful.
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