Bandini L G, Schoeller D A, Cyr H N, Dietz W H
Clinical Research Center, Massachusetts Institute of Technology, Cambridge.
Am J Clin Nutr. 1990 Sep;52(3):421-5. doi: 10.1093/ajcn/52.3.421.
Daily metabolizable energy intake (ME) and total daily energy expenditure (TEE) were measured in 28 nonobese and 27 obese adolescents over a 2-wk period. Reported ME was significantly (p less than 0.001) lower than measured TEE in both the nonobese and the obese groups (2193 +/- 618 vs 2755 +/- 600 kcal/d and 1935 +/- 722 vs 3390 +/- 612 kcal/d, respectively). Reported ME as a percentage of TEE was significantly lower in the obese than the nonobese group (58.7 +/- 23.6% vs 80.6 +/- 18.7%, respectively). When reported ME was adjusted to account for changes in body energy stores, reported ME still remained significantly lower than TEE in both groups. ME was highly reproducible over the 2-wk period. Intraclass correlation coefficients among days for subjects with complete 14-d diaries were 0.87 and 0.89 for nonobese and obese groups, respectively. In both groups, interindividual variability in ME was significantly greater than intraindividual variability. Our data suggest that reported ME in nonobese and obese adolescents is not representative of TEE or energy requirements.
在为期2周的时间里，对28名非肥胖青少年和27名肥胖青少年测量了每日可代谢能量摄入量（ME）和每日总能量消耗（TEE）。在非肥胖组和肥胖组中，报告的ME均显著低于测量的TEE（p<0.001）（分别为2193±618千卡/天对2755±600千卡/天和1935±722千卡/天对3390±612千卡/天）。肥胖组中报告的ME占TEE的百分比显著低于非肥胖组（分别为58.7±23.6%对80.6±18.7%）。当对报告的ME进行调整以考虑身体能量储备的变化时，两组中报告的ME仍然显著低于TEE。ME在2周期间具有高度可重复性。对于有完整14天饮食记录的受试者，非肥胖组和肥胖组各天之间的组内相关系数分别为0.87和0.89。在两组中，ME的个体间变异性显著大于个体内变异性。我们的数据表明，非肥胖和肥胖青少年报告的ME不能代表TEE或能量需求。
