| (华南师范大学 体育科学学院，广东 广州 510631) 摘要：观察赛艇运动员运动后吸入高氧对乳酸 (La)、碳酸氢根离子（HCO3-）和pH值的影响，实验使用测功仪，在15 min内划完4 000 m的运动负荷，测试吸氧量（VO2）、心率（HR）、血La、血pH值和HCO3-浓度。结果表明，吸氧组与不吸氧组相比，吸氧组血La、pH值恢复得较快，并在运动后5、10 min有显著性差异；同样吸氧组HCO3-恢复得较快，且在运动后20、30 min有显著性差异。结果提示，运动后吸氧可能改善体内酸性环境，加快乳酸的消除，有助于机体的恢复。 关键词：高氧；血乳酸；碳酸氢根离子；pH值；大强度运动 中图分类号：G861.414 文献标识码：A 文章编号：1006-7116(2002)06-0131-03 |
HU Yong-xin，XIAO Guo-qiang
| (Institute of Physical Education, South China Normal University, Guangzhou 510631,China) Abstract:In order to investigate the effects of hyperoxic inhalation on lactate（La）, HCO3- and pH after intense exercise. 8 bowing athletes finished 4 000 meter in 15 min on the rowing ergometer. The results showed that removal of lactate ,HCO3- and pH in hyperoxic inhalation group were quicker than normal group. Lactate decreased and pH increased significantly in hypeioxic inhalation group compared with that in normal group 5 and 10 min after inhaling oxygen. HCO3- of hyperoxic inhalation group increased significantly compare with that in normal group 20 and 30 min after inhaling oxygen. In conclusion, hyperoxic inhalation would be helpful to recovery after intensity exercise. Key words: hyperoxic inhalation；blood lactate；HCO3-；pH；high intensity exercise |
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