[中国南方从事轻度体力活动的健康成年人能量摄入的能量零平衡研究]
[Energy zero balance study on the energy intake of healthy adults engaged in light physical activities in southern China].
作者信息
Xu Xinyin, Gong Cai, He Yuna, Piao Jianhua, Huang Chengyu, Li Ming
机构信息
Nutrition and Food Safety Department of School of Public Health, Sichuan University, Chengdu 610041, China.
出版信息
Wei Sheng Yan Jiu. 2011 Jul;40(4):451-3.
OBJECTIVE
Using an energy zero balance method to investigate and analyze the level of dietary energy intake of healthy adults in southern China, in order to provide basic data for revising Chinese energy DRIs.
METHODS
A total of 32 healthy adults engaged in light physical activities were recruited randomly. The food intake of each subject including meals and snacks was weighed and made records at same days intervals in a period of 2 month (covering Monday to Sunday of a week). The energy intake was calculated and adjusted with the change of body weight according to the energy balance principle.
RESULTS
The average total energy intake of subjects in energy zero balance was (8.895 +/- 1.535) MJ/d, (10.070 +/- 1.150) MJ/d for male and (7.719 +/- 0.765) MJ/d for female.
CONCLUSION
The energy intake of healthy adults at zero balance could be measured at same days intervals within a 2 month period. The method was convenient, economical, available and practicable.
目的
采用能量零平衡法对中国南方健康成年人的膳食能量摄入水平进行调查分析，为修订中国能量膳食营养素参考摄入量（DRIs）提供基础数据。
方法
随机招募32名从事轻度体力活动的健康成年人。在2个月期间（涵盖一周的周一至周日），每隔相同天数对每位受试者包括正餐和零食在内的食物摄入量进行称重并记录。根据能量平衡原则，计算能量摄入量并随体重变化进行调整。
结果
处于能量零平衡状态的受试者平均总能量摄入量为（8.895±1.535）兆焦/天，男性为（10.070±1.150）兆焦/天，女性为（7.719±0.765）兆焦/天。
结论
在2个月期间内，每隔相同天数可测量处于零平衡状态的健康成年人的能量摄入量。该方法简便、经济、可行且实用。
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