专家评分法及秩和比法在模拟大深度饱和潜水实验潜水员选拔中的应用

Application of the expert grading method and rank sum ratio in the selection of divers for simulated deep saturation dive

目的选拔出参加模拟大深度氦氧饱和潜水实验符合要求的潜水员。方法根据7名潜水员在模拟250m潜水实验中的脑干听觉诱发电位、神经行为功能、脑电图、手指震颤、主观症状、体能和心率变异性7种生理、心理指标，采取专家评分法确定各种指标的权重，用秩和比法得到各潜水员的综合排名。结果参加最终实验的4名潜水员在480m饱和493m巡潜时的表现与他们在模拟250m潜水阶段综合排名的相关系数为1（P〈0．01），潜水员在加压过程中出现高压神经综合征的先后次序亦验证了该排名。结论在有较浅深度预演模拟潜水的情况下，利用潜水员在预演时的生理、心理参数，采取专家评分法及秩和比法可以有效预测他们在更大深度的作业能力。该综合评价方法不失为一种有效的潜水员选拔方案。

Objective To select qualified divers for participation in the simulated He-O2 deep saturation dive. Methods Based on the 7 physiological and psychological indicators （brainstem auditory evoked potential, neurobehavioral function, electroencephalogram, finger tremor, subjective symptoms, physical performance, and heart rate variability ） obtained from the 7 divers during the rehearsing dive to 250 m, the expert grading method was applied to determine the weight of each indicator, and the rank sum ratio was used to generate the composite rating of the capacity of the 7 divers. Results The correlation coefficient between the performance of the 4 divers （ who finally participated in the targeted 480 m-saturation- 493 mexcursion He-O2 deep dive） and the composite rating during the excursion from the 480 m saturation to a depth of 493 m was 1 （P 〈0.01 ）. High pressure nervous syndrome （HPNS） displayed in the 7 divers during the course of compression also verified their former rating. Conclusions By using the expert grading method and the rank sum ratio, the physiological and psychological indicators obtained from the divers during the rehearsing dive could be used to predict divers＇ performance during exposure to much higher pressures. The composite rating could yet be considered as an effective method for the selection of qualified divers.