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Am J Clin Nutr. 1977 May;30(5):716-20.

Plasma triglyceride lowering by exercise despite increased food intake in patients with type IV hyperlipoproteinemia.


Exercise can lower fasting triglyceride levels (TG). This study was undertaken to determine whether the exercise-induced decrease in TG is the result of a negative caloric balance. Five subjects with primary type IV hyperlipoproteinemia were given diets comparable in composition to their usual diets. During one experimental period the subjects exercised while maintaining their usual caloric intakes. During another experimental period their caloric intake was increased to compensate for the exercise-induced increase in energy expenditure. The exercise, which consisted of 30 min of treadmill walking per day for 4 days, resulted in a progressive decrease in TG. The reduction in TG, which averaged 120 mg/100 ml, occurred regardless of whether or not the increase in caloric expenditure was compensated for by an increase in food intake. The decrease in TG was limited to the very low density lipoprotein fraction. No significant changes occurred in total plasma cholesterol concentration or in the distribution of cholesterol between the lipoprotein fractions. Fasting plasma glucagon concentration was constant for each individual and was unaffected by the exercise. The finding that exercise induces a decrease in TG despite increased food intake indicates that the TG lowering effect of exercise is not mediated by a negative caloric balance.

[Indexed for MEDLINE]

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