Accession Number:

AD0656462

Title:

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

Descriptive Note:

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:

1967-07-01

Pagination or Media Count:

27.0

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