Division of Cardiology, Duke University Medical Center, Durham, NC 27710, USA.
J Appl Physiol (1985). 2012 Dec 15;113(12):1831-7. doi: 10.1152/japplphysiol.01370.2011. Epub 2012 Sep 27.
Recent guidelines on exercise for weight loss and weight maintenance include resistance training as part of the exercise prescription. Yet few studies have compared the effects of similar amounts of aerobic and resistance training on body mass and fat mass in overweight adults. STRRIDE AT/RT, a randomized trial, compared aerobic training, resistance training, and a combination of the two to determine the optimal mode of exercise for obesity reduction. Participants were 119 sedentary, overweight or obese adults who were randomized to one of three 8-mo exercise protocols: 1) RT: resistance training, 2) AT: aerobic training, and 3) AT/RT: aerobic and resistance training (combination of AT and RT). Primary outcomes included total body mass, fat mass, and lean body mass. The AT and AT/RT groups reduced total body mass and fat mass more than RT (P < 0.05), but they were not different from each other. RT and AT/RT increased lean body mass more than AT (P < 0.05). While requiring double the time commitment, a program of combined AT and RT did not result in significantly more fat mass or body mass reductions over AT alone. Balancing time commitments against health benefits, it appears that AT is the optimal mode of exercise for reducing fat mass and body mass, while a program including RT is needed for increasing lean mass in middle-aged, overweight/obese individuals.
最近关于减肥和保持体重的运动指南包括将抗阻训练作为运动处方的一部分。然而，很少有研究比较过相似量的有氧和抗阻训练对超重成年人的体重和体脂肪量的影响。STRIDE AT/RT 是一项随机试验，比较了有氧训练、抗阻训练和两者的结合，以确定减肥的最佳运动方式。参与者为 119 名久坐、超重或肥胖的成年人，随机分为三组，接受为期 8 个月的运动方案：1）RT：抗阻训练，2）AT：有氧训练，和 3）AT/RT：有氧和抗阻训练（AT 和 RT 的结合）。主要结果包括总体重、体脂肪量和瘦体重。AT 和 AT/RT 组比 RT 组降低了总体重和体脂肪量（P < 0.05），但两组之间没有差异。RT 和 AT/RT 比 AT 组增加了瘦体重（P < 0.05）。虽然需要两倍的时间投入，但 AT 和 RT 的联合方案并没有比单独的 AT 方案更显著地减少体脂肪量或体重。在时间投入和健康效益之间进行平衡，看来 AT 是减少体脂肪量和体重的最佳运动方式，而对于中年超重/肥胖者来说，包括 RT 的方案是增加瘦体重所必需的。
