BIOCHEMICAL AND PHYSIOLOGICAL EVALUATION OF HUMAN SUBJECTS IN A LIFE SUPPORT SYSTEMS EVALUATOR.
Joint NASA/USAF Study,
MIAMI VALLEY HOSPITAL DAYTON OHIO DEPT OF RESEARCH
Pagination or Media Count:
A 6-week study with four college students as volunteer subjects was conducted for the purpose of evaluating the nutritional requirements of individuals undergoing stresses imposed by simulated aerospace conditions. A 4-day cycle diet of fresh foods was served at room temperature each day it was comprised of 110 g of protein, 315 g of carbohydrate, 80 g of fat, and 2621 calories. All the clinical data were in the normal range and no significant differences were observed between control and confinement in the Life Support Systems Evaluator. Metabolic balances show excellent adjustment to the diet all subjects were in positive nitrogen balance. Physiological measurements of heart rate, blood pressure, and oral temperature were in the normal ranges. Minimal body weight changes were observed indicating that the diet was adequate. The diet was only moderately acceptable because all food was served at room temperature gravy and cream sauces were rated least acceptable for this reason.
- Stress Physiology
- Life Support Systems