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논문 기본 정보

자료유형
학술저널
저자정보
김경태 (국민대학교)
저널정보
한국생활환경학회 한국생활환경학회지 한국생활환경학회지 제17권 제6호
발행연도
2010.12
수록면
800 - 805 (6page)

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연구주제
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초록· 키워드

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The purpose of this study was to examine the influence of hot environment on ventilatory and cardiovascular response to isocapnic hypoxia at rest. Six volunteers (mean (±Sd): 30 ± 8 yrs, 176 ± 1 ㎝, 74 ± 11 ㎏) underwent two separate testing sessions which were normothermic (21℃, 40% RH) and hyperthermic (50℃, 40% RH) hypoxia. Each participant breathed 12% O₂ in N₂ mixture while the end tidal partial pressure of carbon dioxide (P<SUB>ET</SUB>CO₂) was kept approximately 1 ㎜Hg above normothermic resting levels. Ventilation (V<SUB>E</SUB>) was higher in hyperthermic condition than normothermic condition during pre-hypoxia and isocapnic hypoxia (p < .05) and there were significant increases in VE at hyperthermic group for pre-hypoxia and isocapnic hypoxia (p < .05) except the resting. For brething frequency (f<SUB>R</SUB>), there were significant increases in hyperthermic condition during pre-hypoxia and isocapnic hypoxia (p < .05) and also were significant increases in f<SUB>R</SUB> at hyperthermic group than normothermic group for pre-hypoxia and isocapnic hypoxia (p < .05). Tidal Volume (V<SUB>T</SUB>) was higher in hyperthermic condition than normothermic condition during pre-hypoxia and isocapnic hypoxia (p < .05) and there were significant increases in V<SUB>T</SUB> at hyperthermic group for pre-hypoxia (p < .05). There were significant increases in heart rate (HR) at hyperthermic condition during pre-hypoxia and isocapnic hypoxia (p < .05) but not at normothermic and also were significant increases in HR at hyperthermic group than nor-mothermic group for pre-hypoxia and isocapnic hypoxia (p < .05). For oxygen saturation (SaO₂), there were significant decreases at isocapnic hypoxia relative to the resting in hyperthermic and normothermic condition (p < .05) and there was no difference between hyperthermic and normothermic group during rest, pre-hypoxia, and isocapnic hypoxia (p > .05). In conclusion, there were effects for the change of cardiovascular responses and the increase of ventilatory responses to duplicate stimuli both hyperthermia and hypoxia.

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Abstract
1. 서론
2. 연구 방법
3. 연구 결과
4. 논의
5. 결론
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UCI(KEPA) : I410-ECN-0101-2012-590-004164998