Exercise after acute hyperbaric oxygenation: is there an ergogenic effect?
Exercise after acute hyperbaric oxygenation: is there an ergogenic effect?
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急性高压氧治疗后运动：是否有增强作用？
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
M. Young
中科院分区：
文献类型：
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作者：
A. L. Webster;D. Syrotuik;G. Bell;R. Jones;Y. Bhambhani;M. Young
本研究的目的是确定1小时暴露于2.0大气压（202.6 kPa）和100%氧气对随后的最大耗氧量（VO2max）、通气阈值（VT）、乳酸阈值（LT）和肌肉氧合（%Mox）的影响。在没有事先暴露于高压氧（HBO2）的情况下，分别在不同的场合进行两次基线运动试验（T1和T2），在（22.5 +/- 5.6 min） HBO2后进行第三次试验（T3-HBO2）。在任何运动测试中，没有观察到VO2max、VT或LT之间的显著差异。T2和T3-HBO2之间的%Mox没有显著差异，除了在235 W时，T3-HBO2的%Mox相对于T2有显著升高。这些结果表明，先前暴露于HBO2 （100% O2在2个大气压下持续1小时）对随后的增量运动表现没有有氧作用。
The purpose of this study was to determine the effects of a 1-h exposure to 2.0 atm abs (202.6 kPa) and 100% oxygen on subsequent maximal O2 consumption (VO2max), ventilation threshold (VT), lactate threshold (LT), and muscle oxygenation (%Mox) during incremental exercise to maximum on a cycle ergometer. Two baseline exercise tests (T1 and T2) were performed on separate occasions without prior exposure to hyperbaric oxygen (HBO2) and a third test (T3-HBO2) was performed after (22.5 +/- 5.6 min) HBO2 Near infared spectroscopy was used to monitor oxygenation of the left vastus lateralis muscle during T2 and T3-HBO2. No significant differences were observed between VO2max VT, or LT among any of the exercise tests. There was no significant difference in %Mox between T2 and T3-HBO2 except at 235 W where there was a significant elevation in %Mox during T3-HBO2 relative to T2. These results suggest that prior exposure to HBO2 (100% O2 at 2 atm abs for 1 h) has no ergogenic effect on subsequent incremental exercise performance.