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为增进对高原铁路行车人员劳动生理之了解,对长期从事青藏铁路工作年龄为19～35岁、平均高原工龄为5.7年的36名乘务员(A)组,与刚从平原到该车、年龄为24～34岁的10名工作人员(B组)同时作脑血流图比较。结果表明,随着列车所处高度的变化,B组在海拔2300m左右上升至海拔2700m左右地区时脑血流稍有增加;当上升至海拔3500m左右时则严重减少(P<0.01);A组脑血流变化不大(P>0.05),提示两组对高原的变化,生理反应不尽相同,A组已基本习服于高原环境,反应较小。
In order to improve understanding of labor physiology of plateau railway drivers, 36 crew members (A), who have been working in the Qinghai-Tibet Railway for a long time and aged 19-35 years and averaging 7.7 years in plateaus, 10 staff members aged 24 to 34 (group B) also performed cerebral blood flow comparison. The results showed that with the altitude changes of trains, the blood flow of group B slightly increased when the altitude was about 2300 m and the altitude was about 2700 m. When the altitude was about 3500 m, the cerebral blood flow increased significantly (P <0.01) Cerebral blood flow changes little (P> 0.05), suggesting that the two groups of changes in the plateau, physiological responses are not the same, A group has basically accustomed to the plateau environment, the response is small.