2015 Fiscal Year Final Research Report
Effect of exercise performed at different time of day on 24 h fat oxidation.
| Project/Area Number |
25282215
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Applied health science
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| Research Institution | University of Tsukuba |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
OMI Naomi 筑波大学, 体育系, 准教授 (10300005)
OGATA Hitomi 筑波大学, 体育系, 特別研究員(RPD) (80455930)
NABEKURA Yoshiharu 筑波大学, 体育系, 教授 (60237584)
SATOH Makoto 筑波大学, 国際統合睡眠医科学研究機構, 教授 (50242409)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | ヒューマンカロリメータ |
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| Outline of Final Research Achievements |
The present study compared the effect of exercise performed at various time of the day, including before breakfast, after breakfast, after lunch or after dinner, measuring 24 h fat oxidation by whole room metabolic chamber. A bout of endurance exercise at moderate intensity increases 24 h fat oxidation in male and female subjects, only when performed before breakfast. Time course of relative energy (carbohydrate) balances, calculated from time course of energy expenditure (carbohydrate oxidation) and time of meals, revealed a transient energy (carbohydrate) decrease after morning exercise. The magnitude of transient decrease in body energy (carbohydrate) content was correlated to 24 h fat oxidation. The present results are consistent with the notion that tissue glycogen functions not only as carbohydrate reserve but also as molecular sensor capable of activating signaling pathways in response to exercise responsible for an increase in fat oxidation.
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| Free Research Field |
運動栄養学
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