Accession Number : AD0651578

Title :   EFFECTS OF DIET AND ALTITUDE ON BODY COMPARTMENTS OF RATS.

Descriptive Note : Lab rept.,

Corporate Author : ARMY MEDICAL RESEARCH AND NUTRITION LAB DENVER COLO

Personal Author(s) : Chinn,Kenneth S. K.

Report Date : MAR 1967

Pagination or Media Count : 25

Abstract : Body composition changes in growing albino rats were compared at Denver, Colorado (altitude 5,280 ft) and Climax, Colorado (altitude 11,400 ft) together with the effect of a high carbohydrate, fat or protein diet. Growing rats exposed to a higher altitude accumulated significantly (P<0.001) less body fat in comparison to the control rats. Rats fed a high fat diet have considerably greater fat load than rats on the carbohydrate or protein diet. No changes in the fat-free composition were observed between the two altitudes, nor among the three dietary groups. Muscle protein decreases significantly at Climax with a corresponding increase in nonmuscle protein. Effect of diet on muscle protein at both altitudes, listed in order of the diets are: protein > carbohydrate > fat. Although total body water was not affected by altitude exposure, a significant shift between the intra- and extracellular spaces was observed. At higher altitude, the prercentage of intracellular space was increased with a corresponding decrease in the percentage of extracellular space. Further evidence from the literature also indicates that these two fluid spaces in mammals are highly altitude-dependent. (Author)

Descriptors :   (*METABOLISM, HIGH ALTITUDE), ACCLIMATIZATION, DIET, LIPIDS, CARBOHYDRATES, PROTEINS, MUSCLE PROTEINS, BODY FLUIDS, POTASSIUM, CHLORIDES, NUTRITION, STRESS(PHYSIOLOGY), RATS

Subject Categories : Anatomy and Physiology
      Stress Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE