Evaluation of performance stress among military submarine soldiers by using salivary cortisol,DHEA-S and cortisol/DHEA-S ratio assay
10.7644/j.issn.1674-9960.2014.07.006
- VernacularTitle:唾液皮质醇与硫酸脱氢表雄酮测定在海军长航军事作业应激评估中的应用
- Author:
Song LIN
;
Xiang CHENG
;
Ming ZHAO
;
Wei NI
;
Guozhu CHEN
;
Zheng YANG
;
Xiaodan YU
- Publication Type:Journal Article
- Keywords:
military performance stress;
submarine soldiers;
cortisol/DHEA-S ratio;
saliva
- From:Military Medical Sciences
2014;(7):495-498
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the significance of salivary cortisol , dehydroepiandrosterone sulfate (DHEA-S) and cortisol/DHEA-S ratio changes for evaluation of military performance stress .Methods Forty submarine soldiers were selected, whose saliva samples were collected separately at the end of long-term dive training and after nine months of relaxation break.In addition, the saliva samples of thirty-four graduate students were collected the moment they finished a three-hour final examination and one week later .The method of ELISA was used to detect the levels of salivary cortisol and DHEA-S and to count their ratio .Results After long-term dive training , the submarine soldiers showed significantly decreased DHEA-S and an increased cortisol/DHEA-S ratio, but the cortisol level did not change very much .In contrast, the final examination stress did not change the level of cortisol , DHEA-S or the cortisol/DHEA-S ratio among these students.Conclusion This is the first study to show that long-term, chronic military performance stress is associated with the salivary DHEA-S and cortisol/DHEA-S ratio changes .The increase in the cortisol/DHEA-S ratio may be used as an important and useful biomarker to evaluate chronic stress .In addition , it is relatively simple and sensitive to detect stress biomarkers by using saliva samples .
