吸高氧对赛艇运动员大强度运动后血乳酸、酸碱度的影响

Effects of inhaling hyperoxic oxygen on metabolism of lactate after intensive exercise

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 15min内划完 4 0 0 0m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、10min有显著性差异 ;同样吸氧组HCO3 -恢复得较快 ,且在运动后 2 0、30min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。

In order to investigate the effects of hyperoxic inhalation on lactate(La), HCO 3 - 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 ,HCO 3 - 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. HCO 3 - 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.