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Resistance training reduces systolic blood pressure in metabolic syndrome: a systematic review and meta-analysis of randomized controlled trials


Aim: To evaluate the effects of resistance training on metabolic syndrome risk factors through comparison with a control group. Design: Meta-analysis comparing resistance training interventions with control groups. Two independent reviewers selected the studies and assessed their quality and data. The pooled mean differences between resistance training and the control group were calculated using a fixed-effect model. Data sources: The Medline, PEDro, EMBASE, SPORTDiscus and The Cochrane Library databases were searched from their earliest records to 10 January 2015. Eligibility criteria for selecting studies: Randomized controlled trials that compared the effect of resistance training on metabolic syndrome risk factors with a control group were included. All types of resistance training, irrespective of intensity, frequency or duration, were eligible. Results: Only systolic blood pressure was significantly reduced, by 4.08 mmHg (95% CI 1.33, 6.82; p<0.01), following resistance training. The pooled effect showed a reduction of 0.04 mmol/L (95% CI -0.12, 0.21; p>0.05) for fasting plasma glucose, 0.00 (95% CI -0.05, 0.04; p>0.05) for HDL-cholesterol, 0.03 (95% CI -0.14, 0.20; p>0.05) for triglycerides, 1.39 mmHg (95% CI -0.19, 2.98; p=0.08) for diastolic blood pressure and 1.09 cm (95% CI -0.12, 2.30; p=0.08) for waist circumference. Inconsistency (I2) for all meta-analysis was 0%. Conclusion: Resistance training may help reduce systolic blood pressure levels, stroke mortality and mortality from heart disease in people with metabolic syndrome. (AU)

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