Dietary Energy Requirements of Young Adult Women in China by the Doubly Labeled Water Method

应用双标水法对中国青年女性膳食能量需要量的研究

Jian-Min Liu ； Xiao-Guang Yang ； Jian-Hua Piao ； Rui Sun ； Ying Tian

《Asia Pacific Journal of Clinical Nutrition》 19卷4期 (2010/12) Pp. 520-525

https://doi.org/10.6133/apjcn.2010.19.4.10

摘要

目的：当前中国的能量参考摄入量（RNI）是一个估算值，它是以WHO推荐使用的Schofield公式计算基础代谢能量消耗，进而估算总能量需要量。由于缺乏可靠的针对中国人群的总能量消耗（TEE）及基础代谢能量消耗（BEE）的实测数据，因此其准确性值得商榷。本研究旨在对于中国青年女性的能量消耗值进行实际测定，并将实测值与推荐值加以比较分析。方法：以16名健康中国青年女性（年龄22.1±1.2岁，BMI 20.4±1.7）为研究对象，在严格控制实验条件的基础上，应用双标水法测定其总能量消耗，并应用气体代谢法测定基础代谢能量消耗。结果：测定的总能量消耗为1380±118 kcal/d，与能量平衡观察法得到的膳食能量摄入值（1382±96 kcal/d）非常接近。将实测的总能量消耗值与相应目标人群的能量推荐值（2100 kcal/d）进行比较，结果发现推荐值比实测值高出15%左右。同时，通过Schofield公式计算得到的基础代谢能量消耗预测值为1230±65 kcal/d，比实测的基础代谢能量消耗值（1130±110 kcal/d）高出9%左右。结论：中国青年女性能量参考摄入量应在实际测定目标人群总能量消耗及基础代谢能量消耗的基础上加以修正。

關鍵字

能量需要量 ； 中国人 ； 双标水 ； 基础代谢能量消耗 ； 总能量消耗

並列摘要

Objective: 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. Design: 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. Results: 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. Conclusion: Current recommended energy intake for young adult women may need to be revised on the basis of measured TEE and BEE.

並列關鍵字

energy requirement ； Chinese ； doubly labeled water ； basal energy expenditure ； total energy expenditure