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目的 :探讨在高原建立富氧室对青年运动前后血流动力学的影响 ,为提高高原劳动能力探索有效途经 ;方法 :1 0名受试者在进入富氧室前后及运动前后分别坐于踏车功量机上 ,以 60rpm连续蹬车 ,0W为静息时对照值 ,从 2 5W开始 ,每 3分钟递增 2 5W ,蹬车至力竭时停止 ,然后用XG -Ⅲ血液循环自动测试仪检测血流动力学指标 ;结果 :富氧后运动前P、BK、PAWP、CCP、η、ALT为静息状态均降低 ,差别有显著性 (P <0 .0 5或P <0 .0 1 ) ,SV、MAP、BV均明显增高 ,差别有非常显著性 (P <0 .0 0 1 ) ;富氧后运动后P、BK、TPR较静息状态均升高 ,差别有显著性 (P <0 .0 5或P <0 .0 1 ) ,PAWP升高明显 ,差别有非常显著性(P <0 .0 0 1 ) ,CCP、η、ALT降低明显 ,差别有非常显著性 (P <0 .0 0 1 ) ,其余指标无统计学意义 (P >0 .0 5) ;富氧后运动后SV、CCP、η、mAP、BV、ALT较运动前均降低 ,差别有显著性 (P<0 .0 5或P <0 .0 1 ) ,P、BK、TPR、PAWP均升高明显 ,差别有非常显著性 (P <0 .0 0 1 ) ;结论 :高原富氧室可改善劳动者缺氧 ,增强心功能 ,提高劳动效率 ,是一种较理想的高原供氧途径
Objective: To explore the effect of establishing oxygen-enriched chamber on the hemodynamics before and after youth movement in the plateau and explore effective ways to improve the working ability of the plateau. METHODS: Twenty subjects before and after entering the oxygen- Car power machine, continuous pedaling at 60rpm, 0W for the rest of the control value, starting from 25W, every 3 minutes increments 25W, pedaling to exhaust when stopped, and then with the XG-III blood circulation automatic tester (P <0.05 or P <0.01). The results showed that the resting state of P, BK, PAWP, CCP, η, (P <0.01). The levels of P, BK and TPR in the oxygen-enriched group were higher than those in the resting state after oxygen-enriched exercise, the differences were significant (P < 0.05 or P <0.01), PAWP increased significantly, the difference was significant (P <0.01), CCP, η, ALT decreased significantly, the difference was significant (P <0 (P> 0.05). The levels of SV, CCP, η, mAP, BV and ALT in the oxygen-enriched group were all lower than those before exercise, the difference was significant (P < 0 .0 5 or P <0 .0 1), P BK, TPR, PAWP were significantly increased, the difference was significant (P <0.01); Conclusion: Oxygen chamber plateau can improve laborers hypoxia, improve cardiac function and improve labor efficiency, is a more The ideal plateau oxygen route