TAILIEUCHUNG - Total Energy Expenditure and Energy Requirements in Healthy Elderly Persons

o maintain the ability to chew with one's own teeth over as much of one's life as possible, all people should receive regular check-ups by a dentist once or twice yearly, even if they have no symptoms such as pain or swelling. Finally, a book describing in detail the oral care system presented in this pamphlet was published by Ishiyaku Shuppan in the summer of 2004. In addition, a videotape showing in detail the oral care system was published by Chuohoki Shuppan in 2003. Please refer to it for more detailed information. . | Total Energy Expenditure and Energy Requirements in Healthy Elderly Persons Michael I. Goran and Eric T. Poehlman To investigate energy requirements in healthy elderly subjects we assessed the association of total energy expenditure TEE with resting metabolic rate RMR physical activity body composition and energy intake in 13 individuals aged 56 to 78 years six women and seven men . Free-living TEE was measured using doubly labeled water RMR was measured by respiratory gas analysis and energy expenditure of physical activity EEPA was derived from the difference between TEE and RMR assuming the thermic response to feeding contributes 10 of TEE. Fat mass FM and fat-free mass FFM were obtained from underwater weighing Vojmax was determined from a bicycle test to exhaustion energy intake was obtained from a 3-day food diary and leisure time activity LTA was determined by structured interview. TEE was 2 406 438 kcal d range 1 856 to 3 200 kcal d or to times RMR and was related to Vo2max .79 p .001 LTA r .74 p .004 FFM r .69 p .009 and FM r p .018 . The association between TEE and Vo2max persisted after adjustment for FFM partial r .58 p .036 . EEPA was related to LTA r .83 p .0001 and FM r p .039 . Energy intake underestimated TEE by 31 18 in women and by 12 11 in men. Using stepwise regression TEE was best predicted by Vo2max and LTA total adjusted r2 .86 . We conclude the following 1 TEE varies greatly within healthy elderly subjects due to variations in physical activity 2 Vo2max has an important role in predicting energy requirements in older individuals and 3 healthy older individuals underreport energy intake. Copyright 7992 by . Saunders Company The AGE-RELATED decline in energy intake and resting metabolic rate RMR has been well documented in both cross-sectional and longitudinal 7 In addition physical activity generally declines with age although this observation is limited to measurements obtained from self-recorded physical .

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