TAILIEUCHUNG - Endurance training does not enhance total energy expenditure in healthy elderly persons

Sharpness of vision (visual acuity) gradually declines and eventually bifocals are need. One may be less able to tolerate glare, and may have more trouble adapting to darkness or bright light. The fluid inside eye may change. Small particles can create "floaters" in the vision not a dangerous condition. However if someone suddenly develop floaters or have a rapid increase in the number of them, she should have checked her eyes by a professional. Common eye disorders in the elderly include cataracts (progressive opacification and hardening of the lens of the eye, glaucoma (increased pressure in the eye, if left untreated may. | Endurance training does not enhance total energy expenditure in healthy elderly persons MICHAEL I. GORAN AND ERIC T. POEHLMAN Division of Endocrinology Metabolism and Nutrition Department of Medicine College of Medicine and Department of Nutritional Sciences University of Vermont Burlington Vermont 05405 Goran Michael I. and Eric T. Poehlman. Endurance training does not enhance total energy expenditure in healthy elderly persons. Am. J. Physiol. 263 Endocrinol. Metab. 26 E950-E957 1992. Physical exercise is prescribed to older individuals to increase cardiovascular fitness and improve body composition. However there is limited information on the effect of exercise on total energy expenditure TEE and its components. We therefore determined the effects of short-term endurance training in 11 elderly volunteers 56-78 years on changes in 1 TEE from doubly labeled water 2 resting metabolic rate RMR from respiratory gas analysis 3 the energy expenditure of physical activity EEPA aside from that associated with the training program and 4 body composition from a combination of body density with total body water. Endurance training increased maximum oxygen consumption Vo2 max by 9 to 1 min p and RMR by 11 1 596 214 to 1 763 170 kcal day p . There was no significant change in TEE 2 408 478 to 2 479 497 kcal day before and during the last 10 days of endurance training because of a 62 reduction in EEPA 571 386 to 340 452 kcal day p . There was no change in body mass but fat mass decreased to kg p . The increase in fat-free mass to kg p was explained by an increase in body water to kg p . We conclude that in healthy elderly persons endurance training enhances cardiovascular fitness but does not increase TEE because of a compensatory decline in physical activity during the remainder of the day. aging physical activity body composition physical fitness exercise THE AGING PROCESS

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