Abstract
Summary and conclusions
The effect of increasing the level of daily physical activity on the serum cholesterol concentrtaion was studied in 9 clinically healthy University students. The physical activity was increased by walking on the motor-driven treadmill at a rate which required 1280 cal. for 2 hours. The caloric intake was increased by 900 cal. but the proportion of calories derived from fat was held constant. There was no change in the serum cholesterol concentration. It is concluded that the results are consistent with the hypothesis that the serum cholesterol concentration is related to the proportion of total calories derived from fat.
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