Umbrella review shows strong evidence for Tai Chi and aerobic exercise benefits in cardiometabolic risk factors
This umbrella review synthesizes findings from 16 meta-analysis publications evaluating aerobic exercise, Tai Chi, HIIT, resistance training, Yoga, and Qigong in adults with at least one CV risk factor. The primary outcome assessed was cardiometabolic risk factors, with secondary outcomes including waist circumference, systolic blood pressure, diastolic blood pressure, and total cholesterol. Follow-up durations were at least 6 months or 3 months.
Strong evidence for a benefit was found for aerobic exercise and waist circumference reduction compared to a control group in males and females with metabolic syndrome. The mean difference was -3.44 cm with a 95% CI of -4.81, -2.07. Strong evidence for a benefit was found for Tai Chi and systolic blood pressure reduction after at least 6 months, with a mean difference of -8.80 mmHg and a 95% CI of -11.28, -6.32. Diastolic blood pressure reduction showed a mean difference of -7.58 mmHg at 3 months and -4.62 mmHg after at least 6 months. Total cholesterol reduction following Tai Chi training in adult males and females with essential hypertension showed a mean difference of -8.46 mg/dL with a 95% CI of -11.7, -5.4.
The role of HIIT, resistance, Yoga, and Qigong training in cardiometabolic health is uncertain as these interventions did not show any convincing evidence for a benefit. A limitation noted is that subjects with CV risk factors but no history of CVD are lacking. Safety data, including adverse events and discontinuations, were not reported. Funding or conflicts of interest were not reported.