Accession Number : AD0656462

Title :   ENERGY, NITROGEN, AND WATER REQUIREMENTS OF NORMAL ADULTS RESIDING AT 4300 METERS FOR 28 DAYS,

Corporate Author : ARMY MEDICAL RESEARCH AND NUTRITION LAB DENVER COLO

Personal Author(s) : Consolazio,C. Frank ; Matoush,LeRoy O. ; Johnson,Herman ; Daws,Ted A.

Report Date : JUL 1967

Pagination or Media Count : 27

Abstract : Balance studies were conducted on three groups of young, healthy adults between the ages of 18-24 years. After control studies, Group I was taken to 4300 meters gradually, Group II was taken to 4300 meters abruptly, and Group III remained at sea level during the entire study. One-half of each group were physically conditioned. No significant differences were observed in nitrogen, and fluid balances between: (a) the groups that were taken to altitude gradually or abruptly, or (b) between the groups that were physically conditioned, and those who did not exercise. As a result, the respective groups were combined for comparative purposes. Three factors were prominent during the 28 day high altitude exposure to 4300 meters that included: (a) a decrease in food intake which is probably due to anorexia caused by the clinical symptoms; (b) a negative nitrogen balance which may be due to the decreased nutrient intake and the increased requirement for energy; and (c) a negative fluid balance due to involuntary dehydration and other undetermined factors. These factors appeared to be somewhat less in Group I who ascended to altitude gradually, and suggests the beneficial effects of ascending to high altitude gradually. (Author)

Descriptors :   (*NUTRITION, HIGH ALTITUDE), (*ACCLIMATIZATION, NUTRITION), ENERGY, NITROGEN, WATER, FOOD, INGESTION(PHYSIOLOGY), EXERCISE(PHYSIOLOGY), PHYSICAL FITNESS, DEHYDRATION, STRESS(PHYSIOLOGY)

Subject Categories : Anatomy and Physiology
      Stress Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE