EFFECTS OF DIETARY PROTEIN ON PERFORMANCE CAPACITY OF MAN AND DOG IN A COLD ENVIRONMENT

The effect of four different diets Diet A 3000 Calories, 70 g protein Diet B 3000 Cal, 4 g protein Diet C 1500 Cal, 70 g protein Diet D 1500 Cal, 4 g protein on physical performance capacity was studied in normal young men at an ambient temperature of 22 C and the effects of two diets A and D were studied at 8 C. At room temperature of 22 C there was no significant difference between the four diets with respect to their capacity, as judged by the treadmill test. At an ambient temperature of 8 C no significant deterioration in physical performance capacity was observed in nude subjects living on a 3000 Cal, 74 g protein diet for 10 days. There was, however, a marked deterioration in physical performance capacity in nude subjects living on a diet deficient in calories and proteins 1500 Cal, 4 g protein at an ambient temperature of 8 C for 4-5 days. Author