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）。
