海拔高度对人体睡眠结构和神经机能影响的对比研究

A COMPARATIVE STUDY OF THE EFFECT OF HIGH ALTITUDE. ON SLEEPING PATTERN AND NEUROLOGIC FUNCTION IN PEOPLE

本文对青海省果洛州(海拔3730米)8名健康成年人和抵平原(苏州,海拔10米)的青海省天峻县(海拔3500～3700米)的12名健康成年人,分别连续7小时用多导仪临测夜间睡眠变化,进行对比研究。发现总睡眠时间A组较B组有减少趋势;总醒觉时间占实际记录百分比A组较B组明显增多(P<0.05);有效睡眠指数百分比,REM占总睡眠时间百分比A组较B组显著减少(P<0.01);N—REM占总睡眠时间百分比A组较B组明显增多(P<0.05)。慢性高原低氧对人体神经系统的影响主要为机能紊乱和大脑皮层功能失调。这些改变抵平原后随停留时间的延长而具有可变性。

The changes of sleeping pattern were continually monitored for seven hours with poly—channel physiological recorder on 8 healthy adults from Guoluo, Qinghai(an altitude of 3 730 meter)and 12 healthy adults from Tianjun, Qinghai(an altitude of 3 500 to 3 700 meter)arriving at Srzhou(an altitude of 10 meter). The comparative study was made. It was found that total sleeping time of group A is less than that of group B. The percentage of total awaking time in actual recording time of group A is moer than that of group B(P(0. 05). The percentage of the ihdex of effective sleep and percentage of rapid eye movement (REM)in total sleeping time in group A is less than that in group B(P<0. 05). The percentage of Non—REM in total sleeping time in group A is more than that in group B(P<0. 05). Chronic hypoxia of high altitude leads to the disturbance of neurologic functions and disouder of cerebral cortex. These changes appears to be reversible with the stay at plain.