Stallings V A, Pencharz P B
Division of Gastroenterology and Nutrition, Children's Hospital of Philadelphia, PA 19104.
Eur J Clin Nutr. 1992 Dec;46(12):897-902.
Resting energy expenditure (REE), and body composition, as fat-free mass (FFM) and fat mass, were determined in seven obese adolescents before and after weight loss of a mean 13.5 kg on an approximately 800 kcal/d (3349 kJ), high protein reducing diet regimen. Ideal body weight decreased from 166% to 142% in 8 weeks. There were no significant changes in total body potassium (TBK), extracellular water (ECW), intracellular water (ICW) or total body water (TBW) with weight loss. The REE (kcal/d) fell from 2034 +/- 392 (8514 +/- 1641 kJ) to 1762 +/- 453 (7376 +/- 1896 kJ) with weight loss (P < 0.05). However, when the REE was expressed as kcal/body weight there was no difference between before and after weight loss, 21.4 +/- 2.8 (90 +/- 21 kJ) and 21.6 +/- 4.5 (90 +/- 19 kJ). Similarly, when REE was examined in relation to FFM (kcal/kg) before and after weight loss, there were also no significant differences: 34.6 +/- 5.1 (145 +/- 21 kJ) and 32.1 +/- 7.9 (134 +/- 33 kJ).
在7名肥胖青少年中,采用每日约800千卡(3349千焦)的高蛋白减肥饮食方案,测定了体重平均减轻13.5千克前后的静息能量消耗(REE)以及身体成分,即去脂体重(FFM)和脂肪量。理想体重在8周内从166%降至142%。体重减轻后,总体钾(TBK)、细胞外液(ECW)、细胞内液(ICW)或总体水(TBW)均无显著变化。随着体重减轻,REE(千卡/天)从2034±392(8514±1641千焦)降至1762±453(7376±1896千焦)(P<0.05)。然而,当REE以千卡/体重表示时,体重减轻前后并无差异,分别为21.4±2.8(90±21千焦)和21.6±4.5(90±19千焦)。同样,当在体重减轻前后对与FFM相关的REE(千卡/千克)进行检查时,也没有显著差异:分别为34.6±5.1(145±21千焦)和32.1±7.9(134±33千焦)。