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Res Sports Med. 2013;21(3):240-52. doi: 10.1080/15438627.2013.792088.

Metabolic responses during postprandial exercise.

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  • 1Human Performance Laboratory, Department of Health and Exercise Science, The College of New Jersey, Ewing, New Jersey 08628, USA. kang@tcnj.edu

Abstract

To examine metabolic interaction between meal and exercise, 10 men and 10 women completed three trials: (1) exercise (E), (2) consumption of a meal (M), and (3) consumption of a meal followed by exercise (M+E). All trials commenced after an overnight fast and were preceded by a rest period in which resting metabolic rate (RMR) was determined. The meal contained 721 kilocalories composed of 41%, 36%, and 23% of carbohydrate, lipids, and protein, respectively. Exercise protocol consisted of three continuous 10-minute cycling at 50%, 60%, and 70% VO2peak. Measurement began 60 min after the start of the meal and included VO2 that was used to determine meal-induced thermogenesis (MIT). VO2 was greater (p < .05) in M+E than in E at 50% and 60% VO2peak. MIT was higher (p < .05) during exercise at 50% VO2peak than at rest. It appears that postprandial exercise of mild intensities can potentiate MIT, thereby provoking a greater increase in energy expenditure.

PMID:
23777379
[PubMed - indexed for MEDLINE]
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