摘要
目的 观察吸入液氧对高原人体力竭运动自由基代谢的影响。方法 对进驻海拔 3 70 0m高原 3个月的 1 0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 ,运动后测定血中超氧化物歧化酶 (SOD)、总抗氧化能力 (T ACO)、活性氧 (ROS)和丙二醛 (MDA)含量。结果 与安静时比较 ,对照组和吸氧组T ACO ,ROS,MDA均增高 ,SOD吸氧组增高 ,有非常显著差异 (P <0 0 1 ) ,对照组无统计学差异 (P >0 .0 5 )。运动后吸氧组较对照组SOD ,T ACO增高 ,ROS ,MDA降低 (P <0 0 1 )。结论 液态氧能延长供氧时间 ,并能对高原运动造成的自由基损伤有明显抑制作用 。
Objective To observe the effects of inhaling liquid-oxygen on human afler exhaustive exercise in free radical. Methods Applycycle ergometer progressive load exercise to l0 healthy youths after living in 3 700 m plateau for 3 months pre (control group) and post (inhaling group, 4L/min) inhaling liquid oxygen, and assay free radical markers such as SOD.T ACO.ROS and MDA pre-and post exercises. Results The T ACO,ROS and MDA were increased both in the control group and oxygen group after exhaustive exercise, and the SOD increased significantly in oxygen group ( P <0.0l).Compared with control group, the SOD and T ACO were increase but the ROS and MDA were decreased significanly after eahaustive exercise( P <0,01).Conclusion Inhaling liquid oxygen can prolong oxygen supply time,could prevent from fatigue by antagonizing free radicals damage,hastening remove of free radical,which facilitate the recovery from fatigue after exercises.
出处
《临床军医杂志》
CAS
2003年第6期1-3,共3页
Clinical Journal of Medical Officers
基金
全军指令性课题 ( 0 1L0 62 )
