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Effect of High-Intensity Interval Training vs. Moderate-Intensity Continuous Training on Fat Loss and Cardiorespiratory Fitness in the Young and Middle-Aged a Systematic Review and Meta-Analysis

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  • Zhicheng Guo

    (School of Physical Education, Hunan University of Science and Technology, Xiangtan 411201, China)

  • Meng Li

    (School of Physical Education, Hunan University of Science and Technology, Xiangtan 411201, China)

  • Jianguang Cai

    (School of Physical Education, Hunan University of Science and Technology, Xiangtan 411201, China)

  • Weiqi Gong

    (School of Physical Education, Hunan University of Science and Technology, Xiangtan 411201, China)

  • Yin Liu

    (School of Physical Education, Hunan University of Science and Technology, Xiangtan 411201, China)

  • Ze Liu

    (School of Physical Education, Hunan University of Science and Technology, Xiangtan 411201, China)

Abstract

Objectives: This systematic review is conducted to evaluate the effect of high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) on body composition and cardiorespiratory fitness (CRF) in the young and middle-aged. Methods: Seven databases were searched from their inception to 22 October 2022 for studies (randomized controlled trials only) with HIIT and MICT intervention. Meta-analysis was carried out for within-group (pre-intervention vs. post-intervention) and between-group (HIIT vs. MICT) comparisons for change in body mass (BM), body mass index (BMI), waist circumference (WC), percent fat mass (PFM), fat mass (FM), fat-free mass (FFM), and CRF. Results: A total of 1738 studies were retrieved from the database, and 29 studies were included in the meta-analysis. Within-group analyses indicated that both HIIT and MICT can bring significant improvement in body composition and CRF, except for FFM. Between-group analyses found that compared to MICT, HIIT brings significant benefits to WC, PFM, and VO 2peak . Conclusions: The effect of HIIT on fat loss and CRF in the young and middle-aged is similar to or better than MICT, which might be influenced by age (18–45 years), complications (obesity), duration (>6 weeks), frequency, and HIIT interval. Despite the clinical significance of the improvement being limited, HIIT appears to be more time-saving and enjoyable than MICT.

Suggested Citation

  • Zhicheng Guo & Meng Li & Jianguang Cai & Weiqi Gong & Yin Liu & Ze Liu, 2023. "Effect of High-Intensity Interval Training vs. Moderate-Intensity Continuous Training on Fat Loss and Cardiorespiratory Fitness in the Young and Middle-Aged a Systematic Review and Meta-Analysis," IJERPH, MDPI, vol. 20(6), pages 1-21, March.
    • Handle: RePEc:gam:jijerp:v:20:y:2023:i:6:p:4741-:d:1090712
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    References listed on IDEAS

    as
    1. Zhicheng Guo & Jianguang Cai & Ziqiang Wu & Weiqi Gong, 2022. "Effect of High-Intensity Interval Training Combined with Fasting in the Treatment of Overweight and Obese Adults: A Systematic Review and Meta-Analysis," IJERPH, MDPI, vol. 19(8), pages 1-20, April.
    2. Corentin Scoubeau & Bruno Bonnechère & Miriam Cnop & Vitalie Faoro & Malgorzata Klass, 2022. "Effectiveness of Whole-Body High-Intensity Interval Training on Health-Related Fitness: A Systematic Review and Meta-Analysis," IJERPH, MDPI, vol. 19(15), pages 1-28, August.
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