2021 Fiscal Year Final Research Report
Relationship total energy expenditure and the capacity of digestion and absorption in athletes
| Project/Area Number |
20K19563
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 59020:Sports sciences-related
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| Research Institution | University of Tsukuba |
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Principal Investigator |
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| Project Period (FY) |
2020-04-01 – 2022-03-31
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| Keywords | 炭素安定同位体 / 重水素安定同位体 / 二重標識水法 / 身体活動 / 総エネルギー消費量 |
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| Outline of Final Research Achievements |
To determine the digestive and absorption capacity of the gastrointestinal tract, several basic experiments were conducted using a stable isotope (carbon-13 labeled carbohydrate). We examined (1)dose amount and (2) increase of the 13C using the mask method; (3)the effect of diet, (4)reproducibility during sleep, and (5)the effect of high-intensity exercise using a human calorimeter. In addition, we compared large-body athletes (24 males) and small-body athletes (23 females), whose dietary intake and total energy expenditure differed significantly, using the doubly labeled water(DLW) method. In this study, we were able to evaluate the breath using a carbon-13 for a long period of time (over 10 hours), which has been difficult to evaluate in the past, and we found that combined with the carbon-13 stable isotope and the DLW method may be used to relate the total energy expenditure of the athletes to their gastrointestinal digestive and absorptive capacities.
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| Free Research Field |
運動栄養学
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| Academic Significance and Societal Importance of the Research Achievements |
近年のオリンピックにみられるように,多種多様な競技種目が存在し,それらの競技パフォーマンスは人々を魅了している.競技種目の増加に伴い,これまでになく競技および個人に特化したスポーツ栄養のサポートが必要となっている.特に,競技者にとって身体活動に見合う適切なエネルギー摂取量は,トレーニングや身体組成・体重へ影響を与えるため重要である.また,体格を維持・増加と上手にコントロールするには,食欲だけではなく,消化吸収の能力に合わせた食事摂取も必要である.本研究の安定同位体を用いた消化吸収の評価方法の検討により,将来,個人の消化吸収能力に合わせた新たなウェイトコントロール法への応用が期待できる.
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