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논문 기본 정보

자료유형
학술저널
저자정보
선우섭 (경희대학교) 남상석 (경희대학교)
저널정보
한국체육과학회 한국체육과학회지 한국체육과학회지 제24권 제4호 (자연과학편)
발행연도
2015.8
수록면
1,437 - 1,448 (12page)

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초록· 키워드

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The purpose of this study was investigate that response of blood lactate concentration and blood gas during 80%HRmax cycle exercise and account for exercise performance decrease through acid-base balance. Ten healthy men participated in the study. The subject performed 30min cycle exercise at sea level, 2,000 m normobaric hypoxic environment, and 4,000 m normobaric hypoxic environment. Blood lactate concentration, PO₂. PCO₂, pH, HCO₃-, and ScO₂ during cycle exercise were measured. The collected data were processed statistically by repeated one-way ANOVA and LSD. As a results, cycle load for maintain 80%HRmax at 12.8% O₂ significantly decreased compared to 16.5% O₂ and 20.9% O₂. Blood lactate concentration at 12.8% O₂ was significant increase compared to 20.9% O₂ and presented increase tendency compared to 16.5% O₂. Meanwhile, pH at 12.8% O₂ presented constant or increase tendency compared to 20.9% O₂, despite blood lactate concentration at 12.8% O₂ was significant increase compared to 20.9% O₂. At 12.8% O₂, PO₂ and PCO₂ was significant decrease compared to all other simulated environments. HCO₃- presented most decrease tendency compared to all other simulated environments. Overall, blood lactate concentration at 12.8% O₂ was highest because carbohydrate dependence increase as the oxygen partial pressure is decrease. Also, despite blood lactate concentration was significant increase, pH maintained. These results that PCO₂ is removed through pulmonary ventilation increase caused by hypoxic ventilation response.

목차

Abstract
Ⅰ. 서론
Ⅱ. 연구방법
Ⅲ. 결과
Ⅳ. 논의
Ⅴ. 결론
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UCI(KEPA) : I410-ECN-0101-2016-692-001868254