Meaning in military service among reservists: Measuring the effect of prosocial motivation in a moderated-mediation model.

Introduction: The meaningful commitment to serve one's country and the desire to defend others make military service unique compared to other human activities. This is especially true for the army reservists who are typically working in the civilian labor market and serving military for the short-term military training or military missions only. As scholars provide limited insights into the effects and influences of prosocial motivation on meaning in military service, this study contributes to the understanding of direct, mediated, and moderated processes which link prosocial motivation to meaning in military service among reservists. Specifically, the objective of this study was to examine both direct and indirect pathways interconnecting prosocial motivation and meaning in military service. The former is analyzed as a direct effect, while the latter includes the effects of role fit within the military environment, the soldiers' self-efficacy, as well as the socio-moral climate of military organization-that is, a variable making military service an exceptional activity. Methods: This study followed a quantitative method analysis by utilizing a hierarchical regression analysis which revealed direct, moderating, and mediating links between the variables. The analysis was based on a sample of 375 soldiers from the Active Reserve of the Lithuanian Armed Forces, and the data were collected before and after training exercises in one military unit (repeated measures). The effects on providing meaning to military service were evaluated using the following: Occupational Self-Efficacy Scale, Prosocial Motivation Scale, Motivation at Work Scale, and Socio-Moral Climate Scale. Prosocial motivation assumes meaning in military service among reservists through different, yet related, pathways. Results and discussion: The direct pathway confirmed that reserve soldiers with higher levels of prosocial motivation experience a higher level of meaning in service. The indirect pathway indicated that role fit mediated this relationship. Following the latter, we found that prosocial motivation was a significant predictor of both role fit and meaning in military service. Finally, we confirmed the moderated-mediation effects of self-efficacy and socio-moral climate in our suggested models. The results can be used to improve training programs for reservists.

Prioritizing competencies for soldier's mental resilience: an application of integrative fuzzy-trapezoidal decision-making trial and evaluation laboratory in updating training program.

Background: The development of resilience is of the utmost importance in military training due to the demanding and high-stress nature of combat situations. Although there have been numerous studies on resilience competencies in the military, there is a research gap when it comes to identifying the most essential competencies that should be prioritized in training programs, particularly within compressed timeframes. With the current geopolitical landscape and ongoing military conflicts in Europe, it is necessary to expedite training of soldiers, including resilience training, without compromising the effectiveness of the program. This study aims to address this research gap by using a reductionist approach to resilience training and identifying the critical competencies that senior soldiers need to be trained to coach younger soldiers to maintain psychological strength during deployment. By filling this research gap, the study will contribute to the development of more efficient and targeted resilience training programs that optimize the ability of soldiers to adapt and excel in challenging military environments. Methods: To address the issue, this study assessed the competencies comprising the master resilience training (MRT) program, widely recognized as one of the most effective military resilience training programs. Two groups of military experts, totaling 16 individuals, were involved in the evaluation process, representing two military contexts. The first group consisted of Ukrainian military experts whose experiences primarily focused on defending their own country's territory. The second group comprised Lithuanian military experts who had greater expertise in conducting military missions abroad. The assessment of resilience competencies was carried out using a deep analysis approach through the application of effective multi-criteria decision making (MCDM). Specifically, the decision-making trial and evaluation laboratory (DEMATEL) method was used, which is a significant multicriteria technique used to determine relationships among criteria and assign weight coefficients. In this study, the DEMATEL model was extended using trapezoidal fuzzy numbers (TrFN-DEMATEL) to accommodate decision-making under uncertainty conditions. Results: The research findings highlight the critical importance of three core resilience competencies: self-regulation, mental agility and strength of character. The importance of each competency varies depending on the specific military context. When defending one's own country's territory, strength of character emerges as the key factor in enhancing soldiers' mental resilience. Conversely, during military operations abroad, self-regulation is the primary factor that promotes psychological resilience. Furthermore, the results show that these three primary competencies form a 'cause group' that influences other competencies through a cause-and-effect dependency. Conclusion: Based on the findings, the theoretical conclusion is drawn that the importance of resilience competencies is contextually differentiated. Furthermore, each resilience competency is associated with a set of causes or effects. These are valuable insights for improving resilience competency training programs.

Hair Cortisol, Perceived Stress, and the Effect of Group Dynamics: A Longitudinal Study of Young Men during Compulsory Military Training in Lithuania.

Previous research shows a nonlinear dependency between hair cortisol concentrations and perceived stress levels. This may be due to stress being targeted at the individual level despite it also being a social phenomenon which is often affected by group dynamics. Therefore, the objective of this study was to determine the influence of perceived stress on the hair cortisol level, considering the impact of the variables of group dynamics (interpersonal, task, and norm cohesion). Information was collected on 11 groups of, in total, 112 young men in three phases of time during their compulsory military training (covering nine months in total). The classification and regression tree (C&RT) method was used to predict hair cortisol concentrations in groups. The results show that the variability of the hair cortisol level in young men groups can be explained by perceived stress only when the groups were in formation process (47.7% normalised importance in Model 1) and when the groups were working on their final tasks (37.80% normalised importance in Model 3); meanwhile, the importance of perceived stress in explaining hair cortisol concentrations is low when the group is in a routine period of a group life-span (28.9% normalised importance in Model 2). Interpersonal cohesion (normalised importance 100% in Model 1 and 80.0% in Model 3) and task cohesion (normalised importance 78.6% in Model 2) were the most important predictors in the study area. These results point to the importance of the elements of group dynamics when it comes to explaining the nature of hair cortisol as accumulated stress biomarkers in young men.

Perceived stress and hair cortisol levels amongst conscripts during basic military training: A repeated measures study.

The aim was to examine hair cortisol levels and self-reported stress amongst conscripts during their basic military training, and how they are related to four types of theory-derived determinants. The following prediction was made: lower levels of perceived stress and hair cortisol will be associated with: (1) higher levels of emotional stability (the individual nonmilitary aspect); (2) a lower degree of private life problems (the contextual nonmilitary aspect); (3) more positive attitudes toward the military, higher engagement in military service, and higher adaptability to military conditions (the individual-military aspect); and (4) stronger group cohesion and better leadership (the contextual-military aspect). The sample consisted of a total of 107 male Lithuanian conscripts. Assessments were made at the beginning of their basic military training, in the middle, and at the end. Established instruments were used on all self-reported scales. Hair cortisol levels were established through analyses of hair samples. Low to moderate levels of stress were found throughout the basic training period regarding perceived stress levels. Hair cortisol levels were mainly unrelated to the self-rating scales. Regarding perceived stress, the prediction was fully confirmed. The future value of the theoretical model is discussed.

The Association between Endogenous Hair Steroid Hormones and Social Environmental Factors in a Group of Conscripts during Basic Military Training.

This study aimed to analyse the association between endogenous hair steroid hormones as reliable biological indicators of an individual's stress level and the social environmental factors experienced during military training that are manifested at the beginning of compulsory military service. Hair steroid hormone concentrations-cortisol, cortisone, dehydroepiandrosterone (DHEA), and testosterone-in a group of 185 conscripts were measured using the ultra-high performance liquid chromatography-tandem mass spectrometry method. Six subjective social environmental factors in the military-attitude towards the military and military service, adaptation to the military environment, team, task, and norm cohesion, as well as psychological (un)safety in the group-were evaluated using military-specific research questionnaires. Weak but significant negative correlations were identified between cortisol and adaptation (r = -0.176, p < 0.05), attitude (r = -0.147, p < 0.05) as well as between testosterone and task cohesion (r = -0.230, p < 0.01) levels. Additionally, a multiple forward stepwise regression analysis highlighted that cortisone variation might be partially explained by task cohesion; the DHEA-determined by psychological (un)safety in the group, attitude towards the military and military service, and norm cohesion; and the testosterone-determined by task cohesion and adaptation to the new military environment. The results of this study suggest that subjective measures of social factors can be used to predict hair steroid hormone levels as objective measures of the chronic stress perceived by conscripts during their basic military training.

The change in the amount of immunoglobulins as a response to stress experienced by soldiers on a peacekeeping mission.

PURPOSE: Recent studies have demonstrated various changes in systemic and mucosal immunity in people undergoing psychological stress. This study was designated for an assay of associations between the stress experienced by Lithuanian soldiers as a response to changed job conditions (deployment to Afghanistan) and level of immunoglobulins. Salivary and sera immunoglobulin concentrations were assessed and compared before and after the military mission; the associations between the deployment-related stress and the immunoglobulin level were examined. METHODS: Special questionnaires covering state of health and strain experienced were used. Quantitative detection of immunoglobulins was performed by sandwich ELISA. RESULTS: Comparison of the medians at three time points (before, after the deployment and 1 year after the mission) showed an increased level of salivary secretory immunoglobulin A (S-IgA) in association with deployment. Chi-square test of independence indicated statistically significant relationship between the stress and S-IgA amount. Correlation analysis using different health control methods revealed masked fear of soldiers to be expelled from the military service. CONCLUSIONS: The results indicated that salivary S-IgA is the most sensitive representative of mucosal immunity system to psychological stress related to changed job conditions in military service.

Hypercholesterolemia and smoking habits of Lithuanian military personnel.

OBJECTIVE: To investigate the prevalence of risk factors for cardiovascular disease, namely, hypercholesterolemia and current smoking, among 25- to 54-year-old men and women among Lithuanian active duty military personnel. METHODS: Serum cholesterol levels were measured enzymatically for 200 persons (126 men and 74 women). Interviews regarding smoking habits were performed for 82.5% of those persons (98 men and 67 women). RESULTS: Hypercholesterolemia (total cholesterol level of > or = 6.2 mmol/L) was determined for 45.2% of men and 40.5% of women. After distribution of men and women into three age groups (25-34, 35-44, and 45-54 years), it was determined that the rate of hypercholesterolemia increased with age (among groups of men, 29.6%, 46.7%, and 74.0%; among groups of women, 18.8%, 51.5%, and 40.0%, respectively). The proportion of current smokers among men was 2.6 times higher than that among women (45.9% vs. 17.9%; p < 0.001). The highest rate of current smoking was in the 35- to 44-year group of men (64.5%). The coexistence of hypercholesterolemia and current smoking among men was 3.1 times higher than that among women (23.5% vs. 7.5%; p < 0.01). The highest rates of current smoking with hypercholesterolemia were in the 35- to 44-year and 45- to 54-year groups of men (32.2% and 31.8%, respectively). CONCLUSION: The data demonstrated a relatively high rate (32.1%) of coexistence of two independent risk factors for cardiovascular disease (hypercholesterolemia and current smoking) among men 35 to 54 years of age from Lithuanian military personnel.

Anthropometrical data and physical fitness of Lithuanian soldiers according to the sociodemographic characteristics.

The aim of this study was to assess the anthropometrical data and physical fitness of soldiers according to the sociodemographic characteristics during one-year compulsory military service. The height and weight of 197 soldiers were measured at the beginning and at the end of their service, and body mass index was calculated. The physical fitness was evaluated using index of ability on the basis of 2 km walking test. Conscripts from cities were taller than conscripts from rural areas. At the beginning of the service every fifth was overweight (25< or = body mass index <30 kg/m2) or obese (body mass index > or =30 kg/m2): 17.9% of conscripts from rural areas as well as 17.6% from urban were overweight and 1.9% from rural as well as 1.1% from urban areas were obese. A tendency that the weight of conscripts gradually increased with the level of education was observed. There were no significant differences in index of ability according to the level of soldiers' education as well as place of residence. During one-year service the height of soldiers did not change, however, their weight increased in average by 5.5+/-4.5 kg (p<0.01). The part of overweight persons at the end of the service increased 2.3-fold. Physical fitness of soldiers after one-year service significantly decreased compared with the beginning of the service. In order to decrease the rate of overweight soldiers and to increase their physical fitness the health promotion programs in Lithuanian Army are needed.

Age-related maculopathy and consumption of fresh vegetables and fruits in urban elderly.

The purpose of this study was to investigate the rate of age-related maculopathy among elderly males and females in relation to frequency of consumption of fresh vegetables and fruit. During ophthalmological investigation of Kaunas city inhabitants aged 65-74 years (240 males and 206 females) age-related maculopathy (early and late) was determined for 22.1% of males and 20.4% of females. Frequency of usage of fresh (uncooked) vegetables and fruits in winter-spring and in summer-autumn seasons by investigated persons was determined, using food frequency questionnaire. In this work an association between age-related maculopathy and usage of vegetables and fruits has been investigated in 170 males and 181 females aged 65-74 years without diabetes who never smoked; age-related maculopathy was found for 18.8% of males and 17.7% of females. Obtained data have demonstrated an inverse association between consumption of vegetables during winter-spring season and age-related maculopathy: usage of vegetables two times a week or more versus usage less than two times a week decreases prevalence of age-related maculopathy 2.0 times among males (OR=0.42; 95% CI 0.18-1.0; p=0.05) and 2.2 times among females (OR=0.37; 95% CI 0.15-0.9; p=0.02). Data have demonstrated a tendency that increasing consumption of fresh vegetables and fruits during both seasons can reduce risk of age-related maculopathy among females. In conclusion, characteristic for Lithuanian urban elderly rare usage of fresh vegetables during winter-spring season can increase risk of age-related maculopathy independently from other risk factors.