高原战士肺功能的实验研究

目的：研究高原战士肺功能的变化。方法：海拔3600m，132名战士随机分成对照、锻炼、药物和复合(药物 锻炼)4组，每组33名；海拔4500m，62名战士随机分成对照组和复合组，每组31名。实验前后各实验组测定肺功能。结果：对照组与各实验组实验前各指标均无显著差别，P＜0．05；锻炼组锻炼后FEV1％、FEF、PEF25、PEF50、FEF75、FEF75／HT增加显著，P＜0．05或P＜0．01；复合组实验后PEF、PEF25增加显著，P＜0．05。实验前后锻炼组各指标增加值优于药物组和复合组。结论：高原战士可通过锻炼改善肺功能，增强部队战斗力。

Experimental study on pulmonary function of soldiers at high altitude

Objective: To investigate the changes of pulmonary function of soldiers at high altiude. Methods: One hundred and thirty two soldiers at 3600m altitude were randomly divided into four groups: control, exercise, medicine and combination group. Sixty two soldiers at 4500m altitude were divided into two groups: control and combination group. The pulmonary function of the soldiers in all experiment groups was measured before and after experiment. Results:There was no significant difference of the index of pulmonary function between control group and experiment groups before experiment (P<0 05). Forced expiratory volume in 1 second (FEV 1), peak expiratory flow (PEF), forced expiratory flow after 25% of vital capacity has been expelled (FEF 25 ),FEF 50 ,FEF 75 and FEF 75 /HT in exercise group increased significantly after exercise (P<0 05 or P<0 01), so did the PEF and FEF 25 in combination group after experiment (P<0 05). The increase value in exercise group was higher than that in medicine group and combination group. Conclusion: Pulmonary function of soldiers at high altitude can be improved by exercise.