- 期刊
高強度間歇運動負荷前中後持續攝取高濃度氧氣對新陳代謝與體循環之影響
Effects of Hyperoxia on Blood Metabolism and Circulation of high-intense Interval Exercise
摘要
The purposes of this study were to investigate the effects of inhaling hyperoxia (97%) continuously before, during and after high intense exercise on blood lactate, glucose, heart rate, SpO2, blood pressure and free oxygen radical (FOR). Method: Seven high school level ball players (age: 16.1±0.48, aerobic threshold: 2.76±0.15mmol/l, anaerobic threshold: 3.34±0.31mmol/l) participated 2-4 mmol/l personal thresholds test to find out personal maximum persistent intensity previously. And counter balance order of hyperoxia and normoxia treatments were carried out which with 3 days apart. Each treatment consisted of 3×3min personal maximum intense exercises with 40 seconds interval, finally followed with 20 minutes recovery phase. Results showed that lactate accumulation was lower under hyperoxia treatment (p＜.05) when trials increased, and lactate exclusion rate was more efficiently at recovery phases when compared with normoxia; Glucose and heart rate had the same changing patterns with the time course under both treatments; blood pressure under hyperoxia revealed that systolic blood pressure (SBP) was significantly higher at onset of exercise than that under normoxia (p＜.05), and from resting to first trial of high intensity exercise (1 x), the blood pressure also raised significantly under hyperoxia treatment (p＜.05); SpO2 was significantly higher on both exercise and recovery phases when compared with normoxia (p＜.05); and no significant differences were found on FOR under both treatments. Conclusions: by inhaling hyperoxia (97%) continuously before, during and after high-intense interval exercise have lower lactate accumulation at middle and end of the exercise and get the better elimination rate at recovery phase, and also keeps higher systolic pressure at beginning of exercise and SpO2 all the time, but there are no significantly differences on glucose, heart rate and FOR under both treatments.
並列摘要
The purposes of this study were to investigate the effects of inhaling hyperoxia (97%) continuously before, during and after high intense exercise on blood lactate, glucose, heart rate, SpO2, blood pressure and free oxygen radical (FOR). Method: Seven high school level ball players (age: 16.1±0.48, aerobic threshold: 2.76±0.15mmol/l, anaerobic threshold: 3.34±0.31mmol/l) participated 2-4 mmol/l personal thresholds test to find out personal maximum persistent intensity previously. And counter balance order of hyperoxia and normoxia treatments were carried out which with 3 days apart. Each treatment consisted of 3×3min personal maximum intense exercises with 40 seconds interval, finally followed with 20 minutes recovery phase. Results showed that lactate accumulation was lower under hyperoxia treatment (p＜.05) when trials increased, and lactate exclusion rate was more efficiently at recovery phases when compared with normoxia; Glucose and heart rate had the same changing patterns with the time course under both treatments; blood pressure under hyperoxia revealed that systolic blood pressure (SBP) was significantly higher at onset of exercise than that under normoxia (p＜.05), and from resting to first trial of high intensity exercise (1 x), the blood pressure also raised significantly under hyperoxia treatment (p＜.05); SpO2 was significantly higher on both exercise and recovery phases when compared with normoxia (p＜.05); and no significant differences were found on FOR under both treatments. Conclusions: by inhaling hyperoxia (97%) continuously before, during and after high-intense interval exercise have lower lactate accumulation at middle and end of the exercise and get the better elimination rate at recovery phase, and also keeps higher systolic pressure at beginning of exercise and SpO2 all the time, but there are no significantly differences on glucose, heart rate and FOR under both treatments.
參考文獻
延伸閱讀
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