The Effect of Cabin Temperature on the Nutritional, Biochemical and Physiological Parameters of Man in a Life Support Systems Evaluator

摘要

Four human male subjects were confined for 6 weeks of which 35 consecutive days were spent in a Life Support Systems Evaluator. During this period the environmental temperature in the Evaluator was cycled from 23C to 32C on a weekly schedule. The subjects ate a one-cycle diet of fresh foods that provided 92g protein, 91g fat, 343g carbohydrate, and 2500 kcal of metabolizable energy. The diet was rated 6 on a 9-point scale or like slightly in acceptability. There was a definite decrease in acceptability with time but there was no difference in acceptability at the two temperatures. The diet was sufficient to maintain a 67 kg man without weight loss. Digestibility of food was high; there was no temperature effect. The clinical data, hematology, blood chemistry, blood pressure, oral temperature, and heart rate were all in the normal range. The subjects maintained good health throughout the experiment. (Author)