Byrne H K, Wilmore J H
Department of Physical Education and Sport, State University of New York at Brockport, 350 New Campus Drive, Brockport, NY 14420, USA.
Int J Sport Nutr Exerc Metab. 2001 Mar;11(1):15-31. doi: 10.1123/ijsnem.11.1.15.
The present study was designed to investigate the effects of exercise training on resting metabolic rate (RMR) in moderately obese women. It was hypothesized that exercise training would increase resting metabolic rate. Nineteen previously sedentary, moderately obese women (age = 38.0 +/- 0.9 years, percent body fat = 37.5 +/- 0.8) trained for 20 weeks using either resistance training (RT) or a combination of resistance training and walking (RT/W). The high intensity resistance-training program was designed to increase strength and fat-free mass and the walking program to increase aerobic capacity. There was also a non-exercising control group (C) of 9 subjects in this study. Fat-free mass was significantly increased in both the RT (+1.90 kg) and RT/W (+1.90 kg) groups as a result of the training program. No group showed significant changes in fat mass or relative body fat from pre- to post-training. Aerobic capacity was slightly, though significantly, increased in the RT/W group only. The RT group showed a significant increase (+44 kcal x day(-1)), while the RT/W group showed a significant decrease (-53 kcal x day(-1)) in resting metabolic rate post-training. RT can potentiate an increase in RMR through an increase in fat-free mass, and the decrease in RMR in the RT/W group may have been a result of heat acclimation from the walk training.
本研究旨在调查运动训练对中度肥胖女性静息代谢率（RMR）的影响。研究假设是运动训练会提高静息代谢率。19名以前久坐不动的中度肥胖女性（年龄=38.0±0.9岁，体脂百分比=37.5±0.8）采用阻力训练（RT）或阻力训练与步行相结合（RT/W）的方式进行了20周的训练。高强度阻力训练计划旨在增加力量和去脂体重，步行计划旨在提高有氧能力。本研究还有一个由9名受试者组成的非运动对照组（C）。由于训练计划，RT组（增加1.90千克）和RT/W组（增加1.90千克）的去脂体重均显著增加。从训练前到训练后，没有一组的脂肪量或相对体脂有显著变化。仅RT/W组的有氧能力略有但显著提高。RT组训练后的静息代谢率显著增加（+44千卡×天-1），而RT/W组训练后的静息代谢率显著降低（-53千卡×天-1）。阻力训练可以通过增加去脂体重来增强静息代谢率的提高，RT/W组静息代谢率的降低可能是步行训练导致热适应的结果。
