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现代社会人们的预期寿命及老龄人口都在不断增加。由于老年人在生理机能、体力活动、经济收入等多方面的变化,故易发生营养不良,包括营养不足和营养过剩。老年人如何进行合理的营养已越来越为人们所关注。合理的营养首先需要了解人体每日总能量消耗(total daily energy expenditure, TDEE),以指导每日的能量摄入。由于基础能量消耗(BEE)约占TDEE的60%～65%,故TDEE的数值一般主要通过用BEE乘以经验系数来获得。BEE一般通过仪器实测或根据公式预测获得。由于BEE实测的条件苛刻,实际
The life expectancy and the aging population of people in modern society are constantly increasing. Due to the changes of the elderly in many aspects, such as physiology, physical activity, and economic income, malnutrition is easy to occur, including undernutrition and overnutrition. How to carry out rational nutrition for the elderly has been more and more people’s attention. Reasonable nutrition first needs to know the total daily energy expenditure (TDEE) of the human body to guide daily energy intake. Since basic energy consumption (BEE) accounts for about 60% to 65% of TDEE, the value of TDEE is generally obtained by multiplying BEE by the empirical coefficient. BEE is generally measured by the instrument or predicted by the formula. As BEE measured the harsh conditions, the actual