Moderate exercise, postprandial lipaemia and triacylglycerol clearance

Moderate intensity exercise reduces postprandial triacylglycerol (TG) concentrations. We tested whether this reflects increased TG clearance. Eight normotriglyceridaemic men, aged 48·3 ± 7·3 years (mean ± SD), performed two oral fat tolerance tests (blood samples taken in the fasted state and for six hours after a high‐fat meal containing 1·00 g fat, 0·97 g carbohydrate, 58 kJ energy kg−1 fat‐free body mass) and two intravenous fat tolerance tests (blood samples in the fasted state and after a bolus injection of Intralipid, 0·1 g fat kg−1 body mass). The afternoon before one oral and one intravenous test, subjects walked briskly for 90 min; no exercise was performed before the control tests. Prior exercise reduced fasting TG concentration similarly in the oral (16 ± 7 %) (mean ± SEM) and intravenous (18 ± 7 %) tests, and reduced postprandial TG concentrations in the oral test by 18 ± 6 % (all P