The effects of a pre-exercise meal on postexercise metabolism following a session of sprint interval training
| Autor: | Luke W. Vanderheyden, Greg L. McKie, Greg J. Howe, Abigail A. Broad, Tom J. Hazell |
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| Rok vydání: | 2020 |
| Předmět: |
Male
medicine.medical_specialty Adolescent Physiology Endocrinology Diabetes and Metabolism 030209 endocrinology & metabolism Interval training Fat mass Young Adult 03 medical and health sciences Pre exercise 0302 clinical medicine Physiology (medical) Internal medicine Humans Medicine Meal Nutrition and Dietetics business.industry Lipid metabolism 030229 sport sciences General Medicine Metabolism Adipose Tissue Sprint Cardiology Energy Metabolism business Oxidation-Reduction Physical Conditioning Human Federal state |
| Zdroj: | Applied Physiology, Nutrition, and Metabolism. 45:411-420 |
| ISSN: | 1715-5320 1715-5312 |
| Popis: | Sprint interval training (SIT) has demonstrated reductions in fat mass through potential alterations in postexercise metabolism. This study examined whether exercising in the fasted or fed state affects postexercise metabolism following acute SIT. Ten active males performed a bout of modified SIT (8 × 15-s sprints; 120 s recovery) in both a fasted (FAST) and fed (FED) state. Gas exchange was collected through 3 h postexercise, appetite perceptions were measured using a visual analog scale, and energy intake was recorded using dietary food logs. There was no difference in energy expenditure between conditions at any time point (p > 0.329) or in total session energy expenditure (FED: 514.8 ± 54.9 kcal, FAST: 504.0 ± 74.3 kcal; p = 0.982). Fat oxidation at 3 h after exercise was higher in FED (0.110 ± 0.04 g·min−1) versus FAST (0.069 ± 0.02 g·min−1; p = 0.013) though not different between conditions across time (p > 0.340) or in total postexercise fat oxidation (FED: 0.125 ± 0.04 g·min−1, FAST: 0.105 ± 0.02 g·min−1; p = 0.154). Appetite perceptions were lower in FED (–4815.0 ± 4098.7 mm) versus FAST (–707.5 ± 2010.4 mm, p = 0.022); however, energy intake did not differ between conditions (p = 0.429). These results demonstrate the fasted or fed state does not augment postexercise metabolism following acute SIT in a way that would favour fat loss following training. Novelty Energy expenditure was similar between conditions, while fat oxidation was significantly greater in FED at 3 h after exercise. Appetite perceptions were significantly lower in FED; however, energy intake was not different between conditions. Current findings suggest that performing SIT in the fed or fasted state would not affect fat loss following training. |
| Databáze: | OpenAIRE |
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