Acute and residual effects of aerobic exercise on fructose-induced postprandial lipemia on lean male subjects
Abstract
The addition of fructose to one or more meals daily may lead to increased postprandial lipemia (PPL). Aerobic exercise has been successful in preventing those increases; however, the duration of exercise effects is still unknown. The aim of this study was to evaluate the acute and residual effects of aerobic exercise and fructose ingestion on PPL. Twelve young and sedentary men completed a crossover blinded randomized trial. On day 0, they performed 45 min of aerobic exercise at 60% of VO2peak, or 45 min of resting. On day 1, they received a high-fat meal together with one of the following conditions: (a) a fructose-rich beverage (FRUCT), or (b) exercise performed 13 h before the fructose-rich beverage ingestion (FRUCTEX), or (c) a dextrose-based beverage (DEX). On day 2, all subjects received a high-fat meal plus dextrose. Five blood samples were taken on days 1 and 2, to measure triglycerides (TG), HDL cholesterol, VLDL, total cholesterol (TC), glucose and insulin. On day 1, the delta of the TG peak was higher for FRUCT compared to DEX condition (+ 73.7%; p = 0.019). Total area under the curve (AUC) of TG was lower on the condition FRUCTEX compared to FRUCT (+ 30%; p = 0.001). There was no effect of the beverages or the exerc...Continue Reading
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Triglycerides and cardiovascular disease: a scientific statement from the American Heart Association
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