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Exercise and postprandial lipemia: effect of continuous compared with intermittent activity patterns.

Masashi Miyashita·Stephen F Burns·David J Stensel
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Abstract

BACKGROUND: Guidelines state that accumulated physical activity is beneficial for health, but a minimum duration of 10 min per activity bout is recommended. Limited information regarding the effects of short (< 10 min) bouts of activity on health is available, and no studies of the effects of such short bouts of activity on postprandial lipemia have been conducted. OBJECTIVE: The objective was to compare the effects of accumulating ten 3-min bouts of exercise with those of one 30-min bout of exercise on postprandial plasma triacylglycerol concentrations. DESIGN: Ten men aged 21-32 y completed three 2-d trials > or = 1 wk apart in a randomized repeated-measures design. On day 1, the subjects rested (no exercise) or ran at 70% of maximum oxygen uptake in either ten 3-min bouts (30 min rest between each) or one continuous 30-min bout. On day 2, the subjects rested and consumed test meals (0.69 g fat, 0.95 g carbohydrate, 0.31 g protein, and 46 kJ/kg body mass) for breakfast and lunch. Venous blood samples were obtained in the fasted state and for 7 h postprandially on day 2. RESULTS: Postprandial plasma triacylglycerol concentrations were lower throughout day 2 of both the accumulation exercise trial and the continuous exercise trial than during the control trial (main effect of trial: P < 0.001, 2-factor analysis of variance). CONCLUSIONS: Accumulating multiple short bouts of exercise throughout the day effectively reduce postprandial plasma triacylglycerol concentrations to an extent similar to that of a single 30-min session of exercise in healthy young men.

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AdultAnalysis of VarianceAnthropometryArea Under CurveCross-Over StudiesEnergy MetabolismExerciseFastingHumansLipidsMaleOxygen ConsumptionPhysical ExertionPostprandial PeriodRunningTime FactorsTriglyceridesJournal ArticleRandomized Controlled TrialResearch Support, Non-U.S. Gov't

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Masashi Miyashita, Stephen F Burns, David J Stensel. 2006. Exercise and postprandial lipemia: effect of continuous compared with intermittent activity patterns.. https://doi.org/10.1093/ajcn%2F83.1.24

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