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논문 기본 정보

자료유형
학술저널
저자정보
L. R. Corry (University of Lincoln) T. I. Gee (University of Lincoln)
저널정보
한국코칭능력개발원 International Journal of Coaching Science International Journal of Coaching Science Vol.9 No.2
발행연도
2015.7
수록면
87 - 97 (11page)

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초록· 키워드

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Ingestion of dietary nitrate has shown to improve endurance exercise performance, however effects on short-term maximal intensity exercise are currently unknown. The study aimed to investigate whether supplementation with dietary nitrate has an ergogenic effect on sprint cycling exercise. Following a baseline trial, ten recreationally active males consumed, in a counterbalanced fashion, 0.14 L of either nitrate-rich beetroot juice (8 mmol.NO₃<SUP>-1</SUP>) or placebo, the day before and 40 min prior to performing a maximal 30 s Wingate cycling test. Following nitrate supplementation there was a ‘possible’ increase in mean power (7.95 ± 0.55 w.kg<SUP>-1</SUP>) during the 30 s sprint compared to control (7.78 ± 0.61 w.kg<SUP>-1</SUP>) and placebo conditions (7.63 ± 0.91 w kg<SUP>-1</SUP>) (47% chance; 90% CI: -0.09 - 0.43 w kg<SUP>-1</SUP>). On further analysis, via division into 5 s phases; participants experienced ‘likely’ increases in mean power during 5-10 s (77% chance; 90% CI: -0.01 ? 0.65 w kg<SUP>-1</SUP>) and 10-15 s (81% chance; 90% CI: 0.05 ? 0.57 w kg<SUP>-1</SUP>) phases following nitrate supplementation compared to control and placebo. The consumption of dietary nitrate, seemingly enhanced power output between 5 to 15 s of maximal cycling, this occurred despite nitrate having no distinctive effect on overall cycling performance.

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Abstract
Introduction
Methodology
Results
Discussion
Conclusion
References

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UCI(KEPA) : I410-ECN-0101-2016-692-001971414