Postprandial lipemia: effects of intermittent versus continuous exercise

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Abstract
Postprandial lipemia: effects of intermittent versus continuous exercise. Med. Sci. Sports Exerc., Vol. 30, No. 10, pp. 1515-1520, 1998. The purpose of this study was to assess whether exercise performed in continuous and discontinuous formats reduced postprandial lipemia to a similar degree. Fifteen normolipidemic and three borderline hyperlipidemic healthy males (ages 30.6 ± 9.0 (mean ± SD) yr, BMI 23.1 ± 1.4 kg·m−2) participated in three trials, each conducted over 2 d. Subjects refrained from exercise for the 2 d preceding each trial. On day one, subjects rested (control trial), or ran at 60% of maximal oxygen uptake in either one 90-min session (continuous exercise trial), or three 30-min sessions (intermittent exercise trial). On day two, subjects ingested a high-fat test breakfast (1.2 g fat, 1.2 g carbohydrate, 70 kJ energy per kilogram body mass). Blood samples were obtained in the fasted state and at intervals for 6 h postprandially. Fasting plasma triacylglycerol (TAG) concentrations did not differ between trials. Areas under the TAG versus time curves were 18.1 ± 6.7% (mean ± SEM) and 17.7 ± 7.6% (both P The results suggest that both intermittent and continuous exercise can reduce postprandial lipemia.