Blair D, Buskirk E R
Am J Clin Nutr. 1987 Mar;45(3):540-50. doi: 10.1093/ajcn/45.3.540.
The energy expenditure (EE) of eight lean, eight adult-onset obese (AOO), and eight child-onset obese (COO) women was determined over three 24-h periods by the factorial method, modified by subject-keypunched and mechanically recorded activity diaries. Mean daily EE was significantly higher in the pooled obese women (2472 +/- 488 kcal) than in lean women (1979 +/- 302 kcal) due to higher energy costs of sedentary and light activity in the obese. EE during moderate-to-strenuous activity was similar between groups because lean women performed these activities more vigorously. AOO and COO differed significantly in neither mean EE nor habitual activity. Fat-free mass (FFM) was a better predictor than body weight of both mean daily EE and the energy cost of activity. These data indicate that EE is positively related to obesity. Obese women tend to limit possible EE by reducing the vigorousness of weight-supported activity.
通过因子分析法，并结合受试者自行录入和机械记录的活动日记，对8名体型偏瘦、8名成年起病型肥胖（AOO）以及8名儿童起病型肥胖（COO）女性的能量消耗（EE）进行了为期3个24小时的测定。肥胖女性（2472±488千卡）的平均每日能量消耗显著高于体型偏瘦的女性（1979±302千卡），这是因为肥胖者在久坐和轻度活动中的能量消耗更高。中度至剧烈活动期间的能量消耗在各组之间相似，因为体型偏瘦的女性在这些活动中表现得更为活跃。AOO和COO在平均能量消耗或日常活动方面均无显著差异。去脂体重（FFM）比体重更能预测平均每日能量消耗和活动的能量消耗。这些数据表明，能量消耗与肥胖呈正相关。肥胖女性倾向于通过降低负重活动的活跃度来限制可能的能量消耗。
