ENERGY-EXPENDITURE AT REST AND DURING STANDARDIZED ACTIVITIES - A COMPARISON BETWEEN ELDERLY AND MIDDLE-AGED WOMEN

被引:35
作者
VOORRIPS, LE [1 ]
VANACKER, TMCJ [1 ]
DEURENBERG, P [1 ]
VANSTAVEREN, WA [1 ]
机构
[1] WAGENINGEN UNIV AGR,DEPT HUMAN NUTR,POB 8129,6700 EV WAGENINGEN,NETHERLANDS
关键词
ENERGY EXPENDITURE; BODY COMPOSITION; RESTING METABOLIC RATE; WALKING; STANDARDIZED ACTIVITIES; ELDERLY WOMEN; MIDDLE-AGED WOMEN;
D O I
10.1093/ajcn/58.1.15
中图分类号
R15 [营养卫生、食品卫生]; TS201 [基础科学];
学科分类号
100403 ;
摘要
To estimate energy expenditure (EE) in elderly subjects, more age-specific data are required on energy costs of standardized activities. EE was assessed by using indirect calorimetry in 28 women aged 72 +/- 4 y (xBAR +/- SD) and in 29 middle-aged women (42 +/- 1 y) at rest (resting metabolic rate; RMR) and during sitting, sitting with standardized arm activity, and walking on a treadmill at 3 km/h. RMR and EE during sitting, and sitting with standardized arm activity did not differ significantly between the groups, although EE expressed as a ratio of arm activity to RMR (physical activity ratio, PAR) tended to be higher in the elderly subjects. Walking EE was significantly higher in the elderly women (16.4 +/- 4.0 kJ/min) than in the middle-aged women (12.7 +/- 2.3 kJ/min), also when expressed as PAR. It is suggested that elderly women walk less efficiently. Because PARs are frequently used to estimate daily EE, it is important to note that additional age-specific data might be required.
引用
收藏
页码:15 / 20
页数:6
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