摘要
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 ,并在安静时和运动后测定血中天冬氨酸氨基转移酶 (AST)、乳酸脱氢酶 (LDH)、α 羟丁酸脱氢酶(α HBDH)、肌酸激酶 (CK)及其同功酶 (CK MB)活性。 结果 与安静时比较 ,对照组和吸氧组运动后AST、LDH、α HBDH、CK及CK MB均增高显著 (P <0 0 5或P <0 0 1)。运动后吸氧组较对照组AST、LDH、α HBDH、CK及CK MB降低显著 (P <0 0 5或P <0 0 1)。 结论 吸入液氧能延长供氧时间 ,对心肌细胞损伤有保护作用 ,使细胞膜通透性降低 。
Purpose To observe the effects of inhaling liquid oxygen on human hemorheology after exhaustive exercise. Methods 10 healthy young men,who have entry to an altitude over 3700 meters for 3 months,were selected and divided into two groups of taking liquid oxygen group and control group by conducting loading exercises.And their AST(asparate aminotrasferase),LDH,α HBDH,CK,CK MB in blood have been tested before and after exercises.Results Compared with pre exercise,both in control and test groups,the AST,LDH,α HBDH,CK,CK MB were increased obviously (P<0 05 or P<0 01).However,those indexes were decreased significantly in liquid oxygen taking group that compared with control group after exercise.Conclusion Liquid oxygen taking would prolong oxygen supoply time,protect myocardium from hypoxia & exercise harm,and reduce the myocardial enzyme release.
出处
《西藏医药》
2004年第2期2-4,共3页
Tibetan Medicine
