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논문 기본 정보

자료유형
학술저널
저자정보
남상석 (경희대학교) 선우섭 (경희대학교)
저널정보
한국체육과학회 한국체육과학회지 한국체육과학회지 제20권 제5호 (자연과학편)
발행연도
2011.10
수록면
1,123 - 1,138 (16page)

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초록· 키워드

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The aim of present study was to investigate acute decrease reasons of submaximal aerobic performance at the whole and local body level. For the present study, 14 health male was chosen out of 20 volunteers. Subjects performed exercises that consist of 30min bicycle exercise at a 75%HRmax on simulated altitude of sea level, 2,000m, 3,000m, 4,000m and 5,000m. Each exercise was performed at intervals of three days to eliminate repetition effect. During the exercises, whole and local body level parameters were measured at rest, 4min, 8min, 20min, 30min. Whole body level parameters were aerobic performance(watt) at 75%HRmax, %SpO<sub>2</sub>, blood lactate concentration and local parameters were oxygenation in skeletal muscle, RBC deformability. As a result, aerobic performance(watt) at 75%HRmax was decreased acutely on higher altitude than 4,000m as compared with lower altitude than 3,000m. This decrease was caused by increase of blood lactate concentration and decrease of O<sub>2</sub>Hb. Because PO<sub>2</sub> was decline, oxygen transportation capacity was decrease. These factors lead to increase of blood lactate concentration and decrease of O<sub>2</sub>Hb. In addition, elongation index(EI) of RBC at 5,000m were lower than sea level or 2,000m.

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Abstract
Ⅰ. 서론
Ⅱ. 연구방법
Ⅲ. 결과
Ⅳ. 논의
Ⅴ. 결론
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UCI(KEPA) : I410-ECN-0101-2013-692-001072469