Liu Jian-Min, Yang Xiao-Guang, Piao Jian-Hua, Sun Rui, Tian Ying
Institute of Nutrition and Food Safety, Chinese Center for Disease Control and Prevention, Beijing, China.
Asia Pac J Clin Nutr. 2010;19(4):520-5.
The current recommendations on dietary energy requirements in China have been based on total energy expenditure (TEE) derived from theoretical factorial calculations expressed as multiples of basal energy expenditure (BEE). Few direct measurements of TEE and BEE have been conducted in Chinese people. This study was designed to measure the TEE and BEE of healthy, light active women of normal body weight living in China, and to evaluate the recommendations on dietary energy requirements by comparing the data correspondingly.
16 healthy female adults aged 22.1 ± 1.2 y with a body mass index (in kg/m2) of 20.4 ± 1.7 were selected. Under well-controlled conditions, TEEs were determined by using the doubly labeled water method. At the same time, BEEs were measured by using indirect calorimetry.
Measured TEE was 1380 ± 118 kcal/d, which was close to the value of energy intake (1382 ± 96 kcal/d). Comparing the measured TEE with the recommended (Chinese recommended value for this group is 2100 kcal/d), the recommended was substantially higher than the measured by 15% or so. Meanwhile, the calculated BEE (1230 ± 65 kcal/d) by using the adjusted Schofield equation proposed by the Chinese Nutrition Society was significantly higher (p < 0.001) than the measured BEE (1130 ± 110 kcal/d), by 9% or so.
Current recommended energy intake for young adult women may need to be revised on the basis of measured TEE and BEE.
中国目前关于膳食能量需求的建议是基于通过理论因素计算得出的总能量消耗（TEE），该计算以基础能量消耗（BEE）的倍数表示。在中国人群中，很少有对TEE和BEE进行直接测量的研究。本研究旨在测量居住在中国的体重正常、轻度活动的健康女性的TEE和BEE，并通过相应数据比较来评估膳食能量需求建议。
选取16名年龄为22.1±1.2岁、体重指数（kg/m²）为20.4±1.7的健康成年女性。在严格控制的条件下，使用双标水法测定TEE。同时，采用间接测热法测量BEE。
测得的TEE为1380±118千卡/天，这与能量摄入量的值（1382±96千卡/天）相近。将测得的TEE与推荐值（该组的中国推荐值为2100千卡/天）进行比较，推荐值比测得值高出约15%。同时，使用中国营养学会提出的调整后Schofield方程计算出的BEE（1230±65千卡/天）显著高于测得的BEE（1130±110千卡/天）（p<0.001），高出约9%。
目前针对年轻成年女性的推荐能量摄入量可能需要根据测得的TEE和BEE进行修订。
