Energy requirements and aging
Energy requirements and aging
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DOI：
10.1079/phn2005794
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发表时间：
2005-10-01
影响因子：
3.2
通讯作者：
Dallal, GE
中科院分区：
文献类型：
--
作者：
Roberts, SB;Dallal, GE
目的：总结能量需求和老龄化的文献。设计：对能量消耗和总能量消耗（TEE）组成部分的已发表数据进行分析和回顾。设置：基础代谢率（BMR）和TEE数据来自美国国家科学院医学研究所数据库（2001年之前发表的研究的所有可用数据，收集自20名愿意提供个体受试者结果的研究人员）。从数据库中的那些个体谁是20-100 years.Results：TEE和体力活动水平（PAL，定义为总的静息能量消耗的比率）逐渐下降，在整个成年生活中的正常体重和超重的男性和女性。在正常体重个体（定义为体重指数（BMI）18.5-25.0 kg m（-2））中，TEE每十年下降150 kcal，PAL从生命第二个十年的平均1.75下降到第九个十年的1.28。从其他已发表的研究喂养数据的热效应表明没有一致的变化与aging.Conclusions：老龄化与休息和TEE，这对定义饮食能量需求在不同阶段的成年生活的逐步下降。
Objective: To summarise the literature on energy requirements and aging.Design: An analysis and review of published data on components of energy expenditure and total energy expenditure (TEE).Setting: Data on basal metabolic rate (BMR) and TEE were obtained from the US Institute of Medicine of the National Academies database (all available data from studies published before 2001, collected from 20 researchers willing to provide individual subject results).Subjects: Those individuals from the database who were 20-100 years of age.Results: TEE and physical activity level (PAL, defined as the ratio of total to resting energy expenditure) declined progressively throughout adult life in both normal weight and overweight men and women. In normal weight individuals (defined as body mass index (BMI) 18.5-25.0 kg m(-2)) TEE fell by '150 kcal per decade, and PAL fell from an average of 1.75 in the second decade of life to 1.28 in the ninth decade. Thermic effect of feeding data from other published studies indicated no consistent change associated with aging.Conclusions: Aging is associated with progressive declines in resting and TEE, which have implications for defining dietary energy requirements at different stages of adult life.