Evaluation of stress reaction in divers during underwater navigation
10.3969/j.issn.1009-0754.2014.05.001
- VernacularTitle:水下航行对潜水员应激反应的影响
- Author:
Ci LI
1
;
Yi-Qun FANG
;
Jun MA
;
Jian YAO
;
Guo-Ju FU
;
Xiu-Liang GU
;
Yun-Xiang TANG
;
Miao MENG
;
Hai-Ting CHEN
;
Wei-Wei MIAO
Author Information
1. 海军医学研究所
- Keywords:
Underwater navigation;
Stress reaction;
Salivary cortisol;
NASA-Task Load Index
- From:
Journal of Navy Medicine
2014;(5):337-338,343
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the effects of underwater navigation on the stress reaction and immune function in di-vers.Methods Brain load and stress reaction of 5 male divers working with different speeds, at different depths and different times both before and after underwater navigation were evaluated by using National Aeronautics and Space Administration-Task Load Index Scale.Changes in the concentrations of salivary cortisol and secretory immunoglobulin A ( sIgA) both before and after underwater train-ing were detected by radio-immunoassay.Results The subjective stress load experienced by the 5 divers reached peak value, when they came to the depth of 20 meters.The concentration of salivary cortisol during the first underwater training and at the depth of 20 m was increased significantly (P<0.05), however, no significant changes in the concentration of sIgA could be noted between different groups(P>0.05).Conclusion Stress reaction experienced by divers during underwater navigation increased with the increase in depth, but repeated training was beneficial to the recovery of stress reaction.
