Nutrition and Metabolic Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
Department of Exercise Physiology, University of Isfahan, Isfahan, Iran..
Physiol Behav. 2021 Aug 1;237:113453. doi: 10.1016/j.physbeh.2021.113453. Epub 2021 May 11.
This systematic review and meta-analysis evaluated the influence of intermittent fasting (IF) in combination with resistance training (RT) on body composition outcomes. Studies examining IF vs. non-IF diets in individuals performing RT, published up to February 2021, were identified through PubMed, the Cochrane Library, Web of Science, Embase, and SCOPUS databases. Eight studies, including 221 participants were analyzed using a random-effects model to calculate weighted mean differences (WMDs) with 95% confidence intervals (CIs). Results indicated that IF had a significant effect on body mass (WMD = -2.08 kg; 95% CI: -3.04, -1.13), fat mass (WMD = -1.36 kg; 95% CI: -1.94, -0.78), body mass index (WMD = -0.52 kg/m; 95% CI: -0.85, -0.19), and body fat percentage (WMD = -1.49%; 95% CI: -2.24, -0.74) relative to non-IF diets, without a significant effect for fat-free mass (WMD = -0.27 kg; 95% CI: -0.82, 0.28). The present systematic review and meta-analysis demonstrates potentially beneficial effects of IF in combination with RT for reducing body mass and body fat relative to non-IF control diets, with similar preservation of fat-free mass.
本系统评价和荟萃分析评估了间歇性禁食（IF）与抗阻训练（RT）相结合对身体成分结果的影响。通过 PubMed、Cochrane 图书馆、Web of Science、Embase 和 SCOPUS 数据库，检索了截至 2021 年 2 月比较 IF 与非 IF 饮食在进行 RT 的个体中影响的研究。使用随机效应模型分析了 8 项研究，共 221 名参与者，计算加权均数差值（WMD）及其 95%置信区间（CI）。结果表明，IF 对体重（WMD=-2.08kg；95%CI：-3.04，-1.13）、脂肪量（WMD=-1.36kg；95%CI：-1.94，-0.78）、体重指数（WMD=-0.52kg/m；95%CI：-0.85，-0.19）和体脂百分比（WMD=-1.49%；95%CI：-2.24，-0.74）有显著影响，而对去脂体重（WMD=-0.27kg；95%CI：-0.82，0.28）无显著影响。本系统评价和荟萃分析表明，IF 联合 RT 可能有益于降低体重和体脂，与非 IF 对照饮食相比，去脂体重无明显变化。
