de Peuter R, Withers R T, Brinkman M, Tomas F M, Clark D G
CSIRO (Australia), Division of Human Nutrition, Adelaide, South Australia.
Int J Obes Relat Metab Disord. 1992 Oct;16(10):801-8.
Rates of energy expenditure at rest, during different daily activities and following a standardized liquid meal were compared in eight post-obese women, with a mean weight loss of 21.5 kg (range 14.1 to 33.3 kg) and eight controls who had never been overweight. Age, height, body mass index, fat-free mass and average daily energy intake were similar for both experimental groups. Resting metabolic rate averaged 23.04 cal/min/kg FFM (s.e.m. 1.14) in the post-obese and 22.70 cal/min/kg FFM (s.e.m. 0.64) in the controls on their first visit to the laboratory. Metabolic rates in the two groups rose in parallel as energy expenditure was increased by sitting, standing and walking at three different speeds (2.4, 3.9 and 5.4 km/h). At the highest walking speed energy expenditure averaged 95.30 cal/min/kg FFM (s.e.m. 4.18) in the post-obese and 93.42 cal/min/kg FFM (s.e.m. 2.97) in the control women. Comparisons of postprandial thermogenesis revealed no significant differences between the two groups. The results of the present study do not support the thesis that rates of energy expenditure, whether at rest, during different activities, or after eating, are reduced in post-obese women.
对8名肥胖后女性(平均体重减轻21.5千克,范围为14.1至33.3千克)和8名从未超重的对照者,比较了静息状态、不同日常活动期间以及摄入标准化流食后的能量消耗率。两个实验组的年龄、身高、体重指数、去脂体重和平均每日能量摄入量相似。肥胖后女性首次到实验室时,静息代谢率平均为23.04卡/分钟/千克去脂体重(标准误1.14),对照组为22.70卡/分钟/千克去脂体重(标准误0.64)。随着通过以三种不同速度(2.4、3.9和5.4千米/小时)坐、站和行走增加能量消耗,两组的代谢率平行上升。在最高行走速度时,肥胖后女性的能量消耗平均为95.30卡/分钟/千克去脂体重(标准误4.18),对照女性为93.42卡/分钟/千克去脂体重(标准误2.97)。餐后产热的比较显示两组之间无显著差异。本研究结果不支持肥胖后女性在静息状态、不同活动期间或进食后能量消耗率降低这一论点。