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目的探讨水下航行对潜水员的应激和免疫功能的影响。方法健康男性潜水员5名,在不同航速、不同深度、不同时间水下航行前后,应用美国国家航空航天局任务负荷指数量表评价其脑力负荷及紧张程度,应用放免法测定训练前后唾液皮质醇和分泌型免疫球蛋白A(sIgA)浓度的变化。结果 5名参试人员的主观心理负荷在训练深度增加到20 m时达到最高值;唾液皮质醇浓度在首次训练和深度增加到20 m时明显增高(P<0.05),而sIgA水平在各组间未显示明显变化(P>0.05)。结论水下航行对潜水员的应激作用随深度增加而明显增强,反复训练有助于人员应激水平恢复。
Objective To investigate the effects of underwater navigation on divers’ stress and immune function. Methods Five healthy male divers were used to evaluate their mental workload and stress level before and after their underwater voyages at different speed, depth and time. The NASA task load index scale was used to assess the brain load and stress level. Salivary cortisol and secretion Type immunoglobulin A (sIgA) concentration changes. Results The subjective mental workload of 5 participants reached the highest value when training depth increased to 20 m. Salivary cortisol concentration increased significantly (P <0.05) at the first training and 20 m depth, while the sIgA level in each group There was no significant change between the two groups (P> 0.05). Conclusion Underwater sailing to divers stress significantly increased with depth, repeated training helps to restore the level of stress.