吸入液氧对海拔3700m高原人体力竭运动后血液流变学的影响

The Effects of Inhalating Liquid-oxygen to Human after Exhaustive Exercise in Hemorheology at 3 700m

目的 观察吸入液氧对高原人体力竭运动血液流变学的影响。方法 对进驻海拔 370 0m高原 3个月的 10名健康青年在吸入液氧 (吸氧组 ,4L/min)和不吸液氧 (对照组 )的条件下 ,采用功率自行车进行递增负荷运动 ,并在安静时 ,运动后测定红细胞压积 (HCT)、血液粘度 (ηb)、血浆粘度 (ηp) ,还原粘度 (ηr)、红细胞刚性指数 (IR) ,红细胞变形系数 (TK)、红细胞聚集系数 (VAI)和血栓形成系数 (TFL)等血液流变学指标。结果 运动后吸氧组较对照组HCT、ηb、ηp、ηr、TK、IR、VAI、TFL均降低 (P<0 .0 1)。结论 吸入液氧能延长供氧时间 ,加快运动机体血液流变学各指标的恢复 ,可能是运动后疲劳消除的重要方法之一。

Objective To observe the effects of inhalating liquid-oxygen to human after exhaustive exercise in hemorheology.Method Apply cycle ergometer progressive load exercise to 10 healthy youths after living in 3 700m plateu for 3 months pre-(control group)and post-(inhalating group,4L/min)inhalating liquid-oxygen,and assay hemorheology markers such as HCT、ηb、ηp、ηr、IR、TK、VAI、TFL pre- and post- exercises.Results Hemorheology markers of the 2 groups don't have significant differences pre-exercise(P>0.05),but the HCT、ηb、ηp、ηr、IR,TK、VAI、TFL levels are lower in inhalating group than control group(P<0.01)。Conclusion Inhalating liquid-oxygen can prolong oxygen supply time,accelerate the restoration of hemorheology markers after exercises,and may be an important method to eliminate fatigue after exercises.