A reappraisal of caloric requirements in healthy women.
A reappraisal of caloric requirements in healthy women.
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DOI：
10.1093/ajcn/44.1.1
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发表时间：
1986-07
期刊：
影响因子：
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通讯作者：
O. Owen;E. Kavle;R. S. Owen;M. Polansky;S. Caprio;M. Mozzoli;Z. Kendrick;M. Bushman;G. Boden
中科院分区：
文献类型：
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作者：
O. Owen;E. Kavle;R. S. Owen;M. Polansky;S. Caprio;M. Mozzoli;Z. Kendrick;M. Bushman;G. Boden
通过间接热量测定法测量了 44 名健康、苗条和肥胖女性的热量消耗，其中 8 名是受过训练的运动员。确定了身体成分。年龄范围为18-65岁，体重范围为43-143公斤。逐步使用多重回归分析来确定一个或多个变量是否最能预测女性的静息代谢率（RMR）。在女性食用混合早餐之前和之后测量了 RMR 和食物热效应 (TEF)。结果表明，目前可用的表格和回归方程高估了健康女性的 RMR 7-14%。体重与 RMR 高度相关，逐步纳入各种变量并不能改善 RMR 的预测。非运动员和运动员的回归线斜率显着不同。建立了预测女性 RMR 的回归方程：非运动员 RMR = 795 + 7.18 kg WT；运动员 RMR = 50.4 + 21.1 公斤 WT。对于非运动型女性来说，每公斤体重的 RMR 范围很宽，但对于运动型女性来说，每公斤体重的 RMR 范围很窄。一些苗条和肥胖的非运动女性的新陈代谢非常高效，使这些女性易于形成和维持体内脂肪。 TEF 无法区分非运动女性和运动女性，并形成从最轻到最重女性的连续体。
The caloric expenditure of 44 healthy, lean and obese women, 8 of whom were trained athletes, was measured by indirect calorimetry. Body composition was determined. Ages ranged from 18-65 yr and body weights from 43-143 kg. Stepwise, multiple-regression analysis was used to determine whether one or several variables best predicted the resting metabolic rate (RMR) of the women. The RMR and the thermic effect of food (TEF) were measured before and after the women consumed a mixed breakfast meal. The results showed that the currently available tables and regression equations overestimate the RMR of healthy women by 7-14%. Body weight was highly related to the RMR, and stepwise inclusions of various variables did not improve predictions of RMR. The slopes of the regression lines for nonathletes and athletes were significantly different. Regression equations for predicting RMR of women were developed: Nonathletes RMR = 795 + 7.18 kg WT; Athletes RMR = 50.4 + 21.1 kg WT. The range of RMR per kilogram body weight was wide for nonathletic, but narrow for athletic women. The metabolism of some lean and obese, nonathletic women was highly efficient, predisposing these women for developing and maintaining body fat. The TEFs were indistinguishable between nonathletic and athletic women, and formed a continuum from the lightest to the heaviest woman.