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在模拟302米氦氧饱和潜水时,我们观察了潜水员的某些生理功能,其结果如下:1.到达最大深度时,脑电图有二种类型的变化:在脑的各叶,θ活动甚至δ活动增加;α节律减少,其振幅下降。在302米时可见θ波指数的增加和α指数的减少。2.从海平加压到150 m 时,受测者 A 没有出现明显的震颤,而受测者 B 和 C 即有明显的震颤振幅的增加。受测者 B 和 C 就是在这种条件下出现最大的震颤振幅的变化。3.从加压开始到饱和深度时观察到潜水员心率下降,未见有明显的 ST 段和 T 波的改变,三名潜水员心电图都没有出现明显的 ST 段下降。在以 R 波为主的标准导联和胸导联的心电图上,既没有 T 波的倒置和双相,也没有 T 波的平坦,甚至在302米体力负荷时,也没有 ST 段和 T 波的不正常表现。4.肺通气量各参数的测量结果如下:当受测者从海平加压到302米后,肺容量几乎没有变化,但时间肺活量、最大肺通气量和最大呼吸流量随气道阻力的增加而明显减少。
When simulating a 302-meter helium-oxygen saturation dive, we looked at some of the diver’s physiological functions and the results are as follows: 1. There are two types of EEG changes when the maximum depth is reached: at each leaf of the brain, θ activity or even δ activity increased; α rhythm decreased, the amplitude decreased. The increase in theta-wave index and the decrease in the alpha index were observed at 302 meters. 2. When pressure was increased from sea level to 150 m, there was no significant tremor in Subject A, and subjects B and C showed a significant increase in tremor amplitude. Subjects B and C were the ones that experienced the largest change in tremor amplitude under these conditions. 3. From the start of pressurization to the saturation depth, the diver’s heart rate was observed to decrease, and there was no obvious change of ST segment and T wave. There was no obvious ST segment depression in the three diver’s ECGs. There was neither T-wave inversion nor biphasic nor T-wave flatness on the R wave-based standard leads and chest lead electrocardiograms, nor was there ST segment and T wave even at 302 mph load The abnormal performance. 4. Pulmonary ventilation measurements of the parameters are as follows: When the subjects from the sea level pressure to 302 meters, the lung volume almost no change, but the time vital capacity, maximum pulmonary ventilation and maximum respiratory flow with airway resistance increased obviously decrease.