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目的 :探讨在高原建立富氧室对移居者肺通气功能的影响 ;方法 :对移居海拔3 70 0m一年的 1 0名受试者在进入富氧室前后分别进行功率自行车递增负荷运动 ,用ES80 0肺功量仪检测肺通气功能 ,并与安静时比较 ;结果 :与安静时对照 ,富氧前运动后FEV1 /FVC %降低 ,MVV增加 ,均有非常显著性差异 (P <0 .0 1 ) ,FVC、FEF2 5 %～ 75 % 、FEV1 、PEF都有降低趋势 ,但无统计学意义 (P >0 .0 5) ;富氧次日运动后FVC、FEV1 、PEF和MVV增加非常显著 (P <0 .0 1 ) ;与富氧前运动后比较 ,富氧次日运动后FVC、FEF2 5 %～ 75 % 、FEV1 、PEF、FEV1 /FVC %及MVV均显著增加 (P <0 .0 5或P <0 .0 1 ) ;结论 :富氧室能改善高原移居者运动后的肺通气功能 ,是一种较为理想的供氧途径。
Objective: To investigate the effect of establishing oxygen-enriched chamber on the lung ventilation of settlers in the plateau. Methods: The power-cycling workloads were performed before and after entering the oxygen-enriched chamber at 10 70 m ES80 0 spirometer was used to detect the pulmonary ventilation function and compare with the resting time.Results: Compared with resting time, FEV1 / FVC% decreased and MVV increased after exercise before oxygen enrichment, there was a significant difference (P <0. 0 1), FVC, FEF2 5% -75%, FEV1, PEF all showed a decreasing trend but no statistical significance (P> 0.05); FVC, FEV1, PEF and MVV increased significantly after oxygen- (P <0.01). Compared with those before oxygen enrichment exercise, the oxygen enrichment activities of FVC and FEF2 increased by 5% -75%, FEV1, PEF, FEV1 / FVC% 0 5 or P <0.01). Conclusion: Oxygen-enriched chamber can improve pulmonary ventilation after exercise of plateau migrants, which is an ideal way to supply oxygen.