ENERGY-BALANCE DURING AN 8-WK ENERGY-RESTRICTED DIET WITH AND WITHOUT EXERCISE IN OBESE WOMEN
ENERGY-BALANCE DURING AN 8-WK ENERGY-RESTRICTED DIET WITH AND WITHOUT EXERCISE IN OBESE WOMEN
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DOI：
10.1093/ajcn/62.4.722
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发表时间：
1995-10-01
影响因子：
7.1
通讯作者：
WESTERTERP, KR
中科院分区：
文献类型：
--
作者：
KEMPEN, KPG;SARIS, WHM;WESTERTERP, KR
在 20 名健康肥胖女性中研究了单独严格的能量限制（2.0 MJ/d，持续 4 周，随后 3.5 MJ/d，持续 4 周）或能量限制加适度运动对能量平衡的影响。 25-50岁的受试者根据体重指数和体脂百分比进行匹配，并随机分配到仅饮食（D）或饮食加运动（DE）组，为期8周。与 D 相比，DE 导致脂肪量损失显着增加（7.8 +/- 0.8 与 5.5 +/- 0.8 kg 相比；P < 0.05）。使用双标记水测量的平均每日代谢率在两种处理中均有所下降，并且处理之间没有差异。能量平衡数据显示，DE 处理导致比 D 处理显着更大的能量赤字。运动期间脂肪对能量消耗的相对贡献在 DE 治疗后显着增强，而在 D 后没有变化。在两种治疗结束时体力活动消耗的能量没有变化，两组之间没有差异。体力活动消耗的能量不变，表明DE可能伴随着训练之外的日常体力活动对训练期间消耗的能量的部分补偿。仅因能量限制而导致的能量不足并不能通过自由生活的日常体力活动的减少来补偿。对于肥胖女性来说，在能量限制计划中添加适度运动对于改变身体成分、能量消耗和基质利用率具有优势。
The effects of severe energy restriction alone (2.0 MJ/d for 4 wk and subsequently 3.5 MJ/d for 4 wk) or energy restriction plus moderate exercise on energy balance were studied in 20 healthy obese women. Subjects aged 25-50 y were matched on the basis of body mass index and percentage body fat and randomly assigned to diet alone (D) or diet and exercise (DE) for 8 wk. DE resulted in a significantly increased loss of fat mass compared with D (7.8 +/- 0.8 compared with 5.5 +/- 0.8 kg; P < 0.05). The average daily metabolic rate measured with doubly labeled water decreased with both treatments, with no differences between the treatments. Energy balance data show that the DE treatment resulted in a significantly greater energy deficit than the D treatment. The relative contribution of fat to energy expenditure during exercise was significantly enhanced by DE treatment whereas it did not change after D. The energy expended on physical activity was not changed at the end of both treatments, with no differences between the two groups. The unchanged energy expended on physical activity indicates that DE might be accompanied by partial compensation of daily physical activities outside the training for the energy expended during the training. The energy deficit due to energy restriction alone was not compensated by a decrease in free-living daily physical activities. Addition of moderate exercise to an energy-restriction program in obese women has advantages with respect to changes in body composition, energy expenditure, and substrate utilization.