Meta Analysis of the Effects of High-Intensity Interval Training(HIIT)Combined with Fasting on Adult Body Composition
OBJECTIVE:This study aims to investigate the influence of combining high-intensity interval training(HIIT)with fasting on the body composition of typical adults.The goal is to provide a foundation for future exercise prescriptions targeting body composition.METHODS:A systematic search was conducted in databases,including Pubmed,Embase,the Cochrane Library,and China National Knowledge Infrastructure,covering studies up to October 3,2023.Randomized controlled trials(RCTs)reporting changes in body composition in adults(≥18 years)subjected to combined HIIT and fasting interventions were included in the meta-analysis.RESULTS:After meticulous screening,8 RCTs involving 226 participants undergoing combined HIIT and fasting(HIIT combined with fasting,HF)met the inclusion criteria.The meta-analysis indicated significant differences(P＜0.05)in weight,BMI,waist circumference,fat mass,and lean body mass between HF and individual interventions of HIIT or fasting,while no significant difference was observed in body fat percentage(P＞0.05).Subgroup analysis suggested that longer intervention durations and extended HIIT intervals were associated with more pronounced improvements in adult body composition(P＜0.05).CONCLUSION:Prolonged interventions with extended HIIT intervals in HF can safely and effectively bring about beneficial improvements in adult body composition,surpassing the outcomes of individual interventions involving HIIT or fasting.Shorter interventions with HF can mitigate the loss of lean body mass caused by fasting.
万方数据
维普
