摘要
目的观察佩戴单兵高原增氧呼吸器对高原人体运动自由基代谢和血乳酸(BLA)的影响。方法对进驻海拔3 700 m高原20 d的20名健康青年在佩戴增氧呼吸器和不佩戴增氧呼吸器的条件下,采用功率自行车进行递增负荷运动,在运动后测定血中超氧化物歧化酶(SOD)、丙二醛(MDA)和BLA含量。结果实验组较对照组MDA,BLA降低,SOD增高,有显著性意义(P<0.05或<0.01)。结论单兵高原增氧呼吸器对高原运动造成的自由基损伤有明显抑制作用,可加速运动后体内代谢产物自由基的清除及疲劳恢复。
Objective To explore the effects of add-oxygen breath instrument on free radical metabolism and blood lactic acid (BLA) after exercise at high altitude. Methods Twelve healthy young men who had been staying at high altitude for 20 days pedaled the EMG bicycle ergometer whose resistance was progressively increased with (experiment group) and without (control group) add-oxygen breath instrument. Super oxide dismutase ( SOD), Malonodialdehyde (MDA) and BLA were measured after exercise. Results MDA and BLA were reduced and SOD were increased in the experiment group when compared with that of the control group ( P 〈 0.05, or P 〈 0.01 ). Conclusion Add-oxygen breath instrume can restrain free radical damage after exercise at high altitude and accelerate the lustration of tiredness.
出处
《临床军医杂志》
CAS
2005年第6期681-682,共2页
Clinical Journal of Medical Officers