DELIBERATE OVERFEEDING IN WOMEN AND MEN - ENERGY-COST AND COMPOSITION OF THE WEIGHT-GAIN
DELIBERATE OVERFEEDING IN WOMEN AND MEN - ENERGY-COST AND COMPOSITION OF THE WEIGHT-GAIN
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DOI：
10.1079/bjn19860080
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发表时间：
1986-07-01
影响因子：
3.6
通讯作者：
LIPINSKI, BA
中科院分区：
文献类型：
--
作者：
FORBES, GB;BROWN, MR;LIPINSKI, BA
1.在罗切斯特临床研究中心的3周时间里，13名成年女性和2名男性总共过量摄入79-159兆焦耳(19,000-38,000千卡)。体重增加的平均能量成本为28kJ(6.7kcal)/g，根据40K计数，大约一半的增加包括瘦体重(LBM)。2.对文献的调查显示，28名正常男性和5名女性在受控条件下总共过量进食104-362兆焦耳(25,000-87,000千卡)；其中25人进行了身体成分分析，3人有完全的氮平衡。3.体重增加与总能量消耗(r 0.77，P<；0.01)和LBM增加与过剩能量(r 0.49，P<；0.01)之间存在显著的相关性。经回归分析，能量成本为33.7kJ(8.05千卡)/克增重，占增重的38.4%。4.不能根据性别、初始体重或脂肪含量、过量喂养的持续时间、所吃的食物类型、每日食物消耗量或在一组受试者中的吸烟行为来解释反应的个体差异。5.体重增加的平均能量成本接近由所获得的组织成分得出的33.8kJ(8.08kcal)/g的理论值。
1. Thirteen adult females and two males were overfed a total of 79-159 MJ (19,000-38,000 kcal) during a 3-week period at the Clinical Research Center, Rochester. The average energy cost of the weight gain was 28 kJ (6.7 kcal)/g, and about half the gain consisted of lean body mass (LBM) as estimated by 40K counting. 2. A survey of the literature disclosed twenty-eight normal males and five females who had been overfed a total of 104-362 MJ (25,000-87,000 kcal) under controlled conditions; twenty-five of these had assays of body composition, and three had complete nitrogen balances. 3. When these values combined with those from our subjects (total forty-eight), there was a significant correlation between weight gain and total energy consumed (r 0.77, P < 0.01) and between LBM gain and excess energy (r 0.49, P < 0.01). Based on means the energy cost was 33.7 kJ (8.05 kcal)/g gain and 43.6% of the gain was LBM; from regression analysis these values were 33.7 kJ (8.05 kcal)/g gain and 38.4% of gain as LBM. 4. Individual variations in the response could not be explained on the basis of sex, initial body-weight or fat content, duration of overfeeding, type of food eaten, amount of daily food consumption or, in a subset of subjects, on smoking behaviour. 5. The average energy cost of the weight gain was close to the theoretical value of 33.8 kJ (8.08 kcal)/g derived from the composition of the tissue gained.