Longitudinal change in energy expenditure and effects on energy requirements of the elderly.
Longitudinal change in energy expenditure and effects on energy requirements of the elderly.
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DOI：
10.1186/1475-2891-12-73
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发表时间：
2013-06-06
影响因子：
5.4
通讯作者：
Health ABC study
中科院分区：
文献类型：
--
作者：
Cooper JA;Manini TM;Paton CM;Yamada Y;Everhart JE;Cummings S;Mackey DC;Newman AB;Glynn NW;Tylavsky F;Harris T;Schoeller DA;Health ABC study
人们对晚年能量需求的纵向变化知之甚少。本研究的目的是：(1) 确定晚年的能量需求以及它们在 7 年时间范围内的变化情况；(2) 确定去脂体重 (FFM) 的变化是否与静息代谢率 (RMR) 的变化相关；(3) 确定预测的总能量消耗 (TEE) 与测量的 TEE 的准确性。 1999 年（n = 302；年龄：74± 2.9 岁）和 2006 年（n = 87 年龄：82± 3.1 岁）通过双标记水 (DLW) 技术对老年人进行了 TEE 评估。 RMR 采用间接量热法测量，身体成分采用双能 X 射线吸收测定法评估。九十岁的能量需求男性为2208±376大卡/天，女性为1814±337大卡/天。这与男性 80 岁时的能量需求相比显着下降（2482 ± 476 kcal/d vs. 2208 ± 376 kcal/d），但女性则不然（1892 ± 271 kcal/d vs. 1814 ± 337 kcal/d）。除了 TEE 之外，男性的 RMR 和活动 EE (AEE) 也下降，但女性则没有下降，而男性和女性的 FFM 均下降。对于男性，FFM 的变化与 RMR 的变化相关（r = 0.49，p < 0.05），但对于女性则不然（r = −0.08，ns）。男性（2208 ± 56 vs. 2305± 35 kcal/d）和女性（1814± 42 vs. 1781± 20 kcal/d）的测量 TEE 与膳食参考摄入量 (DRI) 预测 TEE 相似。然而，测量的 TEE 与世界卫生组织 (WHO) 预测的 TEE 不同，男性（2208 ± 56 vs. 2915 ± 31 kcal/d (p < 0.05)）和女性（1814 ± 42 vs. 2315 ± 21 kcal/d） (p < 0.05))。从八岁到九岁，男性的 TEE、RMR 和 AEE 有所下降，但女性则没有。预测 TEE 的 DRI 方程与测量的 TEE 相当，而 WHO 方程高估了老年人口的 TEE。
Very little is known about the longitudinal changes in energy requirements in late life. The purposes of this study were to: (1) determine the energy requirements in late life and how they changed during a 7 year time-span, (2) determine whether changes in fat free mass (FFM) were related to changes in resting metabolic rate (RMR), and (3) determine the accuracy of predicted total energy expenditure (TEE) to measured TEE. TEE was assessed via doubly labeled water (DLW) technique in older adults in both 1999 (n = 302; age: 74 ± 2.9 yrs) and again in 2006 (n = 87 age: 82 ± 3.1 yrs). RMR was measured with indirect calorimetry, and body composition was assessed with dual-energy x-ray absorptiometry. The energy requirements in the 9th decade of life were 2208 ± 376 kcal/d for men and 1814 ± 337 kcal/d for women. This was a significant decrease from the energy requirements in the 8th decade of life in men (2482 ± 476 kcal/d vs. 2208 ± 376 kcal/d) but not in women (1892 ± 271 kcal/d vs. 1814 ± 337 kcal/d). In addition to TEE, RMR, and activity EE (AEE) also decreased in men, but not women, while FFM decreased in both men and women. The changes in FFM were correlated with changes in RMR for men (r = 0.49, p < 0.05) but not for women (r = −0.08, ns). Measured TEE was similar to Dietary Reference Intake (DRI) predicted TEE for men (2208 ± 56 vs. 2305 ± 35 kcal/d) and women (1814 ± 42 vs. 1781 ± 20 kcal/d). However, measured TEE was different than the World Health Organization (WHO) predicted TEE in men (2208 ± 56 vs. 2915 ± 31 kcal/d (p < 0.05)) and women (1814 ± 42 vs. 2315 ± 21 kcal/d (p < 0.05)). TEE, RMR and AEE decreased in men, but not women, from the 8th to 9th decade of life. The DRI equation to predict TEE was comparable to measured TEE, while the WHO equation over-predicted TEE in our elderly population.
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影响因子：
--
作者：
Kimura, Misaka;Mizuta, Chinatsu;Yamada, Yosuke;Okayama, Yasuko;Nakamura, Eitaro
通讯作者：
Nakamura, Eitaro
影响因子：
7.1
作者：
Manini, Todd M.;Everhart, James E.;Harris, Tamara B.
通讯作者：
Harris, Tamara B.
影响因子：
5.5
作者：
Tucker, Jared M.;Welk, Gregory J.;Beyler, Nicholas K.
通讯作者：
Beyler, Nicholas K.
影响因子：
3.2
作者：
Roberts, SB;Dallal, GE
通讯作者：
Dallal, GE
影响因子：
4.7
作者：
Elia, M;Ritz, P;Stubbs, RJ
通讯作者：
Stubbs, RJ