Effect of Moderate Versus Vigorous Exercise Intensity on Body Composition in Young Untrained Adults: The Activating Brown Adipose Tissue Through Exercise (ACTIBATE) Randomized Controlled Trial.

IF 3 3区 医学 Q2 NUTRITION & DIETETICS
Francisco J Amaro-Gahete, María Ruiz-Ruiz, Amalia Cano-Nieto, Guillermo Sanchez-Delgado, Juan M Alcantara, Francisco M Acosta, Idoia Labayen, Francisco B Ortega, Jonatan R Ruiz
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Abstract

The present study aimed to investigate the effect of a 24-week aerobic + resistance training programs at moderate versus vigorous intensity on body composition, and the persistence of the changes after a 10-month free-living period, in young untrained adults. This report is based on a secondary analysis from the activating brown adipose tissue through exercise (ACTIBATE) single-center unblinded randomized controlled trial. A total of 144 young adults (65.6% women) aged 18-25 years were randomly allocated to three different groups: (a) aerobic + resistance exercise training program based on the international physical activity recommendations at vigorous intensity (Ex-Vigorous group), (b) at moderate intensity (Ex-Moderate group), and (c) control group (no exercise). Body composition outcomes were determined by a dual-energy X-ray absorptiometry scanner. Both Ex-Vigorous and Ex-Moderate decreased body weight, fat mass, and visceral adipose tissue mass in a similar manner (all p < .04). After a 10-month free-living period, these parameters returned to baseline levels in both exercise groups (all ps < .03). No differences between the exercise groups and the control group were noted in lean mass changes (all ps > .1). A 24-week aerobic + resistance training intervention based on the international physical activity recommendations was enough to improve body weight, fat mass, and visceral adipose tissue mass in untrained young adults, independently of the exercise intensity (moderate vs. vigorous).

中等强度与剧烈运动强度对未经训练的年轻成人身体成分的影响:运动激活棕色脂肪组织(ACTIBATE)随机对照试验。
本研究旨在调查未经训练的年轻成年人在中等强度和高强度下进行24周有氧+阻力训练对身体成分的影响,以及在10个月的自由生活期后这种变化的持续性。本报告基于通过运动激活棕色脂肪组织(ACTIBATE)单中心非盲随机对照试验的二次分析。共有144名18-25岁的年轻人(65.6%的女性)被随机分配到三个不同的组:(A)基于国际体育活动建议的有氧+阻力运动训练计划,高强度(非高强度组),(b)中等强度(非中等强度组)和(c)对照组(不运动)。通过双能X射线吸收仪扫描仪确定身体成分结果。Ex-Gigh和Ex-Mediate都以相似的方式降低了体重、脂肪量和内脏脂肪组织量(均p<.04)。在10个月的自由生活期后,两个运动组的这些参数都恢复到了基线水平(均ps<.03)。运动组和对照组之间的瘦体重变化没有差异(均ps>.1)。基于国际体育活动建议的24周有氧+阻力训练干预足以改善体重、脂肪量,未经训练的年轻人的内脏脂肪组织质量,与运动强度无关(中等与剧烈)。
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来源期刊
CiteScore
5.00
自引率
8.00%
发文量
50
审稿时长
6-12 weeks
期刊介绍: The International Journal of Sport Nutrition and Exercise Metabolism (IJSNEM) publishes original scientific investigations and scholarly reviews offering new insights into sport nutrition and exercise metabolism, as well as articles focusing on the application of the principles of biochemistry, physiology, and nutrition to sport and exercise. The journal also offers editorials, digests of related articles from other fields, research notes, and reviews of books, videos, and other media releases. To subscribe to either the print or e-version of IJSNEM, press the Subscribe or Renew button at the top of your screen.
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