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Resistance Exercise Intensity is Correlated with Attenuation of HbA1c and Insulin in Patients with Type 2 Diabetes: A Systematic Review and Meta-Analysis

Author

Listed:
  • Yubo Liu

    (Exercise and Metabolism Research Center, College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua 321004, China)

  • Weibing Ye

    (Exercise and Metabolism Research Center, College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua 321004, China)

  • Qian Chen

    (Zhejiang Sports Science Institute, Hangzhou 310004, China)

  • Yong Zhang

    (Exercise and Metabolism Research Center, College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua 321004, China)

  • Chia-Hua Kuo

    (Department of Sports Sciences, University of Taipei, Taipei 111, Taiwan)

  • Mallikarjuna Korivi

    (Exercise and Metabolism Research Center, College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua 321004, China)

Abstract

We investigated the influence of resistance exercise (RE) with different intensities on HbA1c, insulin and blood glucose levels in patients with type 2 diabetes (T2D). Diabetes trials that compared RE group with a control were included in meta-analysis. Exercise intensities were categorized into low-to-moderate-intensity and high-intensity subgroups. Intensity effect on glycemic control was determined by meta-regression analysis, and risk-of-bias was assessed using Cochrane Collaboration tool. 24 trials met the inclusion criteria, comprised of 962 patients of exercise ( n = 491) and control ( n = 471). Meta-regression analysis showed decreased HbA1c ( p = 0.006) and insulin ( p = 0.015) after RE was correlated with intensity. Subgroup analysis revealed decreased HbA1c was greater with high intensity (−0.61; 95% CI −0.90, −0.33) than low-to-moderate intensity (−0.23; 95% CI −0.41, −0.05). Insulin levels were significantly decreased only with high intensity (−4.60; 95% CI −7.53, −1.67), not with low-to-moderate intensity (0.07; 95% CI −3.28, 3.42). Notably, values between the subgroups were statistically significant for both HbA1c ( p = 0.03) and insulin ( p = 0.04), indicative of profound benefits of high-intensity RE. Pooled outcomes of 15 trials showed only a decreased trend in blood glucose with RE ( p = 0.09), and this tendency was not associated with intensity. Our meta-analysis provides additional evidence that high-intensity RE has greater beneficial effects than low-to-moderate-intensity in attenuation of HbA1c and insulin in T2D patients.

Suggested Citation

  • Yubo Liu & Weibing Ye & Qian Chen & Yong Zhang & Chia-Hua Kuo & Mallikarjuna Korivi, 2019. "Resistance Exercise Intensity is Correlated with Attenuation of HbA1c and Insulin in Patients with Type 2 Diabetes: A Systematic Review and Meta-Analysis," IJERPH, MDPI, vol. 16(1), pages 1-21, January.
    • Handle: RePEc:gam:jijerp:v:16:y:2019:i:1:p:140-:d:195455
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    References listed on IDEAS

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    1. Ryan M. Weatherwax & Joyce S. Ramos & Nigel K. Harris & Andrew E. Kilding & Lance C. Dalleck, 2018. "Changes in Metabolic Syndrome Severity Following Individualized Versus Standardized Exercise Prescription: A Feasibility Study," IJERPH, MDPI, vol. 15(11), pages 1-14, November.
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