老年男性进食的热效应与能量平衡的关系

Thermic effect of feeding in relation to energy balance in elderly men.

作者信息

Morgan J B, York D A

出版信息

Ann Nutr Metab. 1983;27(1):71-7. doi: 10.1159/000176625.

Abstract

Resting metabolic rate (RMR) and the thermic effect of feeding (TEF) two meals of differing energy densities were measured in 8 healthy elderly men aged 63-74 years. Similar measurements were made on 8 healthy young men aged 22-28 years. TEF was related to the meal size in both groups. Metabolic rate increased by 20.7 and 27.9% in the elderly group (EG) and 25.8 and 37.7% in the control group (CG) in response to the 2.0-and 4.0-MJ meals, respectively. Although the EG were fatter than the CG, they consumed a smaller daily food intake: we suggest that the decline in RMR and TEF as indicated by the study would explain his paradox.

摘要

对8名年龄在63 - 74岁的健康老年男性和8名年龄在22 - 28岁的健康年轻男性，测量了静息代谢率（RMR）以及两顿不同能量密度膳食的食物热效应（TEF）。两组的TEF均与膳食量有关。老年组（EG）在摄入2.0兆焦耳和4.0兆焦耳膳食后，代谢率分别增加了20.7%和27.9%，对照组（CG）分别增加了25.8%和37.7%。尽管老年组比对照组更胖，但他们每日食物摄入量更少：我们认为该研究所示的RMR和TEF下降可以解释这一矛盾现象。