The Study On Mental Fatigue And Its Intervention On Soldiers In The Environment Of Alpine Plateau And Arid Desert

Objective:To find out the mental status and its related factors of soldiers in the environment of alpine plateau and arid desert and give intervention on them by the mental fatigue questionnaire, and offer data information for establishing army database of mental health and researching effective mental intervention measures. Methods:Using cluster random sampling extraction in the long run, in China's western drought desert regions soldiers 300, plateau alpine region soldiers for the investigation team, extraction of 600 soldiers 600 more than one year downtown enlistment as control in psychological health questionnaire, Meanwhile from arid desert of 100 soldiers and alpine plateau of 150 soldiers were classified into the intervention group with the method of self-control before and after the intervention and they were given mental evaluation 3 months later by the same questionnaire. Results:1. The fatigue level of the soldiers is acceptable. In the four dimensions of Chinese version of multidimensional fatigue invent (MFI-20), the highest score of physical fatigue is 23.81±6.86, while that of reduced activities is 7.16±2.46, that of decreased motivations is 6.46±2.04 and that of mental fatigue is 8.80±3.28;The scores of physical fatigue, reduced activities, decreased motivations, mental fatigue and the total score of fatigue in the investigation team are higher than those in the control group; in the environment of arid desert, the scores of each fatigue factor and the total scores of fatigue of the subjects with different ages, the length of military service, nationality, education status, whether the only child, political affiliation and family monthly income are not significantly different while those scores of the subjects with different military rank and census register before the enlistment are significantly different with each other; the total scores of fatigue, the scores of physical fatigue and dimension of petty officers and conscripts are significantly higher than those of officers while the scores of mental fatigue and the dimension of reduced activities of petty officers and conscripts are significantly lower than those of officers. The degree of physical fatigue of urban soldiers is higher than country soldiers. Negative life events positively correlate with the total scores of fatigue and the scores of each fatigue factors while positive life events negatively correlate with the reduced activities and decreased motivations. In the environment of alpine plateau, the scores of each fatigue factor and the total scores of fatigue of the subjects with different ages, nationality, census register before the enlistment, education status, political affiliation and family monthly income are not significantly different while those scores of the subjects with different length of military service, whether the only child, marital status and military rank are significantly different with each other; The total scores of fatigue and the scores of each fatigue factor of the soldiers with no more than 2 years military service are significantly higher than those of the soldiers with no less than 8 years military service and the length of military service between 3 years and seven years. The scores of reduced activities in the only child group are higher than that in the non-only child group. The total scores of fatigue, the scores of physical fatigue of petty officers and conscripts are significantly higher than those of officers while the mental fatigue dimension scores of petty officers and conscripts are significantly lower than those of officers. The degree of physical fatigue, decreased motivations, mental fatigue and the total scores of fatigue of married soldiers are higher than unmarried soldiers while the reduced activities are not obvious different in the married soldiers and unmarried soldiers. Negative life events positively correlate with all the fatigue scores while positive life events negatively correlate with the reduced activities and decreased motivations.2. Negative coping style, emotional exhaustion, reduced accomplishment and the degree of anxiety of soldiers in the investigation team are higher than those of soldiers in the control group. In the arid desert group, the total scores of fatigue, the scores of mental fatigue, decreased motivations, and reduced activities positively correlate with negative coping while physical fatigue negatively correlate with positive coping and the scores of each fatigue factor positively correlate with anxiety; of all the fatigue factors, the decreased motivation is significantly positive correlated to emotional exhaustion.In the alpine plateau group, the total scores of fatigue and the scores of each fatigue factor positively correlate with negative coping while negatively correlate with positive coping and the scores of each fatigue factor positively correlate with anxiety; The total score of fatigue, decreased motivations and mental fatigue are all significantly positive correlated to emotional exhaustion, depersonalisation and reduced accomplishment.3. In the environment of alpine plateau and arid desert, the regression analysis has shown that the degree of fatigue decreases with the increasing of the length of military service and positive coping style while it increases with the increasing of negative coping style, anxiety and emontional exhaustion. The degree of fatigue in single and the only child is higher. The main factors influencing the fatigue degree of soldiers are the length of military service, marital status, whether the only child, positive coping style, negative coping style, anxiety and emontional exhaustion. 4. In the arid desert environment after the intervention:the total fatigue scores and the scores of each fatigue factor of soldiers are lower than those before the intervention while negative coping style, emotional exhaustion, reduced accomplishment and the level of anxiety of soldiers are lower than those before intervention. In the alpine plateau environment:the total fatigue scores and the scores of physical fatigue and mental fatigue of soldiers are lower than those before intervention while negative coping style, the level of anxiety and emotional exhaustion of soldiers are lower than those before intervention. Conclusion:Fatigue, trait coping style, the anxiety and tireness of soldiers in different environment are significantly different. In the arid desert environment, the military rank and census register before the enlistment influence the soldiers'fatigue level to some extent while in the alpine plateau environment the length of military service, whether the only child, marital status and military rank influence the soldiers'fatigue to some extent. Life events, trait copying style, anxiety and tireness obviously correlate with fatigue. The main factors influencing mental fatigue of soldiers in different environment are positive coping, negative coping, anxiety, the length of military service, marital status, whether the only child, and emotional exhaustion. The levels of fatigue, trait coping style, anxiety and tireness of the soldiers in the investigation team after the intervention are lower than those before the intervention.