Search Results (108)

Background/Objectives: Military Service Members (SMs) require optimal nutrition to support health, readiness, and job performance. However, they often fall short of meeting nutrition guidelines. This study aimed to determine the impact and feasibility of implementing the U.S. Marine Corps (USMC) “Fueled to Fight^®” (F2F) nutrition program in non-appropriated fund (NAF) food venues. Objectives included evaluating changes in Military Nutrition Environment Assessment Tool (mNEAT) scores, feasibility of implementing and maintaining F2F strategies, and influence on customer purchasing patterns. Methods: Researchers conducted a pre-post interventional study from January to December 2024 at three NAF food venues across two USMC bases. F2F strategies, including identifying items using a stoplight color coding system (Green = healthy, Yellow = less healthy, Red = least healthy), menu revisions, food placement, promotion, and marketing, were implemented. Data included mNEAT assessments, sales reports, and stakeholder focus groups. Generalized Estimating Equations models were used to analyze sales data. Results: mNEAT scores increased across all venues post-intervention. Availability and sales of Green items increased, while sales of Red items decreased in some venues. Profit increased at all three food venues. Focus groups revealed feasibility and provided insights for future interventions. Conclusions: F2F interventions in NAF food venues are feasible and can positively impact the food environment and customer purchasing patterns without negatively affecting profit. This study highlights the importance of integrating nutrition programs into all military food venues, not just government-funded dining facilities, to support the nutritional fitness and readiness of SMs. Full article

Wound care in military and combat environments poses distinct challenges that set it apart from conventional medical practice in civilian settings. The nature of injuries sustained on the battlefield—often complex, contaminated, and involving extensive tissue damage—combined with limited access to immediate medical intervention, significantly increases the risk of infection, delayed healing, and adverse outcomes. Traditional wound dressings frequently prove inadequate under such extreme conditions, as they have not been designed to address the specific physiological and logistical constraints present during armed conflicts. This review provides a comprehensive overview of recent progress in the development of advanced wound dressings tailored for use in military scenarios. Special attention has been given to multifunctional dressings that go beyond basic wound coverage by incorporating biologically active macromolecules such as collagen, chitosan, thrombin, alginate, therapeutic peptides, and growth factors. These compounds contribute to properties including moisture balance control, exudate absorption, microbial entrapment, and protection against secondary infection. This review highlights the critical role of advanced wound dressings in improving medical outcomes for injured military personnel. The potential of these technologies to reduce complications, enhance healing rates, and ultimately save lives underscores their growing importance in modern battlefield medicine. Full article

Background/Objectives: This study examines the academic discourse surrounding Critical Incident Stress Debriefing (CISD) and Critical Incident Stress Management (CISM) for first responders using Latent Dirichlet Allocation (LDA) topic modeling. It aims to uncover latent topical structures in the literature and critically evaluate assumptions to identify gaps and limitations. Methods: A corpus of 214 research article abstracts related to CISD/M was gathered from the Web of Science Core Collection. After preprocessing, we used Orange Data Mining software’s LDA tool to analyze the corpus. We tested models ranging from 2 to 10 topics. To guide interpretation and labeling, we evaluated them using log perplexity, topic coherence, and LDAvis visualizations. A four-topic model offered the best balance of detail and interpretability. Results: Four topics emerged: (1) Critical Incident Stress Management in medical and emergency settings, (2) psychological and group-based interventions for PTSD and trauma, (3) peer support and experiences of emergency and military personnel, and (4) mental health interventions for first responders. Key gaps included limited focus on cumulative trauma, insufficient longitudinal research, and variability in procedural adherence affecting outcomes. Conclusions: The findings highlight the need for CISD/M protocols to move beyond event-specific interventions and address cumulative stressors. Recommendations include incorporating holistic, proactive mental health strategies and conducting longitudinal studies to evaluate long-term effectiveness. These insights can help refine CISD/M approaches and enhance their impact on first responders working in high-stress environments. Full article

Moral injury is increasingly recognized as a significant concern among medical personnel and first responders, particularly in high-stress healthcare and emergency settings. This review aims to synthesize current evidence on the prevalence, risk factors, and outcomes of moral injury among medical personnel and first responders across diverse healthcare and emergency response environments. We included peer-reviewed studies reporting on moral injury among medical personnel or first responders in any healthcare or emergency response setting, excluding studies that did not report original data or focused solely on military populations. We systematically searched PubMed, Google Scholar, and Central, up to April 2025. Risk of bias was assessed directly from the manuscripts. Data were synthesized narratively and, where possible, pooled using random-effects meta-analysis. A total of 41 studies involving 14,500 participants were included. The prevalence of moral injury ranged from 4.1% to 69.44% across settings. Key risk factors identified included exposure to traumatic events, organizational constraints, and lack of support. Meta-analysis indicated a significant association between moral injury and symptoms of PTSD. The evidence is limited by heterogeneity in measurement tools and study designs, as well as a moderate risk of bias in several included studies. In conclusion, moral injury is prevalent among medical personnel and first responders, with important implications for mental health interventions and organizational policy. This review was not funded externally, and is registered in PROSPERO (CRD420251019492). Full article

Background: This study examined the incidence of acute complications within the first year following combat-related lower extremity injuries in United States (U.S.) Service members (SMs). The research compared outcomes between primary amputation (PA), limb salvage (LS), and non-threatening limb trauma (NTLT) groups, and conducted a subgroup analysis within the LS group, differentiating between SM who underwent a secondary amputation (LS-SA) and those who did not (LS-NA). Methods: A retrospective analysis of combat-related lower extremity injuries sustained between January 2001 and October 2015 was performed using data from the Military Health System Medical Data Repository. Chi-square tests and adjusted logistic regression analysis were used to compare complication frequencies by injury severity. Results: The analysis of the 4275 SM revealed that 21% had undergone PA, 47% LS (with 13% experiencing LS-SA and 87% LS-NA), and NTLT was observed in 32% of cases. The PA group exhibited higher rates of most acute complications compared to other groups, with three exceptions—i.e., non-union fractures, compartment syndrome, and orthopedic device complications were more prevalent in the LS group than the PA group. The LS-SA group had higher complication rates than the LS-NA group for most complications. Notably, the PA group was associated with the highest rates of post-hemorrhagic anemia and heterotopic ossification, while the LS-SA group exhibited the highest rates of osteomyelitis, non-union fractures, non-healing wounds, and compartment syndrome. Conclusions: Individuals with amputation (PA or LS-SA) were more likely to experience acute complications compared to their counterparts (PA vs. LS and NTLT; LS-SA vs. LS-NA), with the exception of non-union fractures, which were more frequent in the LS group than the PA group. These findings highlight the need for close monitoring and targeted interventions to address post-surgical complications in Service members with limb salvage. Full article

Post-traumatic stress disorder (PTSD) is a complex, debilitating condition prevalent among military personnel exposed to traumatic events, necessitating biomarkers for early detection and intervention. Using data from the Millennium Cohort Study, the largest and longest-running military health study initiated in 2001, our objective was to identify specific microRNA (miRNA) expression patterns associated with distinct PTSD symptom trajectories among service members and veterans and assess their potential for predicting resilience and symptom severity. We analyzed 1052 serum samples obtained from the Department of Defense Serum Repository and linked with survey data collected at baseline and across three follow-up waves (2001–2011), using miRNA sequencing and statistical modeling. Our analysis identified five PTSD trajectories—resilient, pre-existing, new-onset moderate, new-onset severe, and adaptive—and revealed significant dysregulation of three key miRNAs (miR-182-5p, miR-9-5p, miR-204-5p) in participants with PTSD compared to resilient individuals. These miRNAs, which inhibit brain-derived neurotrophic factor (BDNF) and target pathways like NFκB, Notch, and TGF-alpha, were associated with neuronal plasticity, inflammation, and tissue repair, reflecting PTSD pathophysiology. These findings suggest that miRNA profiles could serve as biomarkers for early identification of PTSD risk and resilience, guiding targeted interventions to improve long-term health outcomes for military personnel. Full article

Background: Rescue teams and emergency services face high levels of mental health problems due to their frequent exposure to traumatic situations. Critical incident stress debriefing (CISD) is widely used as a psychological intervention for emergency responders and military personnel exposed to traumatic events. However, its effectiveness remains controversial, with systematic reviews yielding mixed results and some evidence of negative and harmful outcomes. This systematic review, conducted according to PRISMA guidelines, evaluates the evidence on the efficacy of CISD in mitigating psychological distress and preventing post-traumatic stress disorder (PTSD). Methods: A systematic search was conducted in PubMed and PsycINFO from inception to November 2024. Eligibility criteria included randomized controlled trials (RCTs) and cohort studies assessing the impact of CISD on PTSD, anxiety, depression, and psychological distress. Two independent reviewers screened studies, extracted data, and assessed the risk of bias using the PEDro scale. Data narrative synthesis was applicable. Results: A total of 6 out of 371 studies were included, comprising 4751 participants. The PEDro scale showed that one study was of high methodological quality, four were of acceptable quality, and two had deficiencies. The findings revealed mixed outcomes: while some studies reported a reduction in PTSD symptoms, others found no significant effect or even potential harm. Heterogeneity in intervention implementation, population characteristics, and study quality influenced the results. Risk of bias was moderate to high in several studies, with limitations in sample size and follow-up duration. No specific effects have been studied in mountain rescue teams. Conclusions: Current evidence does not unequivocally support the efficacy of CISD in preventing PTSD and psychological distress. Given methodological concerns and potential adverse effects, alternative debriefing methods, such as Battlemind debriefing, warrant further exploration. Future research should focus on well-powered RCTs with standardized intervention protocols to enhance reliability. Full article

Background/Objectives: The health of military personnel in modern operational settings is critical for sustaining defense readiness. Extended exposure to extreme conditions can cause oxidative stress and systemic inflammation, potentially affecting performance. To address this problem, we developed an innovative diagnostic tool, the Post-Mission Integrated Risk Index (IIRPM), which integrates hematologic markers with key clinical variables. A novel aspect of the approach is the incorporation of ΔNLR, thus quantifying the change in the neutrophil-to-lymphocyte ratio measured before and after deployment, thereby providing a sensitive indicator of the inflammatory impact of operational stress. Methods: In this retrospective study, we analyzed comprehensive clinical and biological data from 443 military personnel over a ten-year period, with measurements taken before and after missions. We applied robust statistical techniques, including paired t-tests and Pearson correlation analyses, to assess variations in hematologic and metabolic parameters. Data segmentation was performed using Gaussian mixture models, and the predictive performance of the resulting model was validated with a multi-layer perceptron (MLP) neural network. Results: The analysis revealed significant post-mission increases in both the baseline NLR and ΔNLR, accompanied by notable shifts in metabolic markers. Data segmentation identified three distinct profiles: a reference profile characterized by stable immunologic parameters, an acute inflammatory response profile, and a proinflammatory metabolic profile marked by elevated cholesterol levels and higher mean age. Remarkably, the MLP model achieved 100% accuracy on the test set, with an average cross-validation accuracy of 97%. Conclusions: The IIRPM—which incorporates ΔNLR, age, mission duration, and cholesterol levels—offers a novel strategy to assess inflammatory risk among military personnel, thus facilitating personalized preventive interventions. Further validation in multicenter and longitudinal studies is anticipated to consolidate the clinical utility of this tool, ultimately fostering a more adaptive approach in military medicine to address the complex challenges of modern operational theaters. Full article

Background: CrossFit^® has become a popular and effective training methodology. This study aimed to compare the effects of a four-week CrossFit training program and analyze the inter-individual variability on body composition (fat mass and fat-free mass) and physical fitness (push-ups, military press, back squat, deadlift, countermovement jump (CMJ), sit-ups, and 30 m sprint speed) in novice and advanced practitioners. Methods: A quasi-experimental design was used, with single-blinded (evaluators) and 2 parallel groups: novices (n = 10; age = 22.30 ± 0.81) and advanced practitioners (n = 11; age = 22.80 ± 1.41). The intervention consisted of 3 weekly 75 min sessions (4 weeks), with pre- and post-assessments. A two-factor mixed ANOVA and inter-individual analyses to classify responders (Rs) and non-responders (NRs) were performed. Results: No significant interaction effects were found. However, the novice group significantly improved back squat performance (p = 0.031). Inter-individual analysis showed higher proportions of Rs in the novice group for back squat (40%), deadlift (20%), military press (10%), CMJ (10%), sit-ups (30%), push-ups (30%), and 30 m sprint speed (10%) compared to the advanced group. Conclusions: CrossFit program did not significantly affect body composition, but novices exhibited significant back squat improvements. Considering experience levels can enhance training outcomes. Full article

Analysts of American politics have given only modest attention to the way religious factors shape public attitudes toward foreign policy, including the use of US military force. The Cooperative Election Studies from 2008 to 2022 provide an excellent data source for such analysis. Attitudes toward different uses of the military are well measured and the massive sample permits examination of even small ethnoreligious groups. We find that American religious groups vary greatly on overall willingness to use the military but also respond in distinctive—and predictable—ways to each type of intervention. Although religious influences differ somewhat by racial group and are partly mediated by ideology and partisanship, they often play an independent role, even under stringent statistical controls for other variables commonly found to influence public attitudes. Full article

Background/Objectives: Maintaining the health and operational readiness of military personnel is a strategic priority, particularly in the context of cardiovascular diseases (CVDs), which remain a significant public health challenge in Poland. Despite a decline in mortality rates between 2006 and 2012, Poland continues to report higher premature mortality rates compared to the OECD average. This study highlights the importance of effective risk assessment and management strategies, employing the POL SCORE scale, an adaptation of the European Society of Cardiology’s Systematic Coronary Risk Evaluation (SCORE) project. Methods: This study included 196 participants, comprising soldiers and civilian employees of the Ministry of National Defense, to assess their 10-year cardiovascular mortality risk. Data were collected using clinical evaluations and self-reported questionnaires. Results: Findings revealed that 66.3% of participants were at moderate risk, with significant differences observed based on gender and education level. Notably, the average triglyceride level was 219.3 ± 114.31 mg/dL in the very high-risk group, compared to 97.4 ± 41.31 mg/dL in the low-risk group. Stress, reported by 88.2% of participants, emerged as the most prevalent work-related risk factor. Alarmingly, a lack of awareness regarding cardiovascular risk factors was observed, particularly among high-risk individuals. Conclusions: This study underscores the need for targeted health education, regular preventive screenings, and psychological support, particularly among military personnel. These interventions are crucial to mitigating the burden of CVDs and ensuring the operational readiness of armed forces. Full article

The military’s high-pressure environment can lead to burnout syndrome, characterized by emotional fatigue, depersonalization, and decreased personal accomplishment. Validating a culturally appropriate tool for assessing burnout among military personnel is crucial for early detection and intervention. This study assessed the psychometric properties of the Arabic version of the Maslach Burnout Inventory (MBI) and its validity among Tunisian military personnel. A validation study was conducted among 520 Tunisian military personnel (mean age = 36 ± 9.3 years; male (n = 486) and female (n = 34)), including commandos, pilots, and divers. The Arabic version of the Maslach Burnout Inventory MBI-HSS was administered, including participants’ sociodemographic characteristics. The exploratory (EFA) and confirmatory (CFA) factor analyses were performed to identify the factor structure, with assessments of the internal consistency of the model. The factor analysis confirmed the three-factor model of burnout: emotional exhaustion, depersonalization, and personal accomplishment consistent with the original MBI. The A-MBI-MP demonstrated strong internal consistency, with Cronbach’s alpha values exceeding 0.8 for all subscales. The test–retest reliability was also excellent, confirming the stability of the instrument. The CFA validated the three-factor structure of the A-MBI-MP. The fit indices demonstrated an acceptable model fit: Comparative Fit Index (CFI) = 0.949, Tucker–Lewis Index (TLI) = 0.943, and Root Mean Square Error of Approximation (RMSEA) = 0.0742 (95% CI: 0.068–0.0797). These results validate the reliability of the A-MBI-MP in assessing burnout in the military context. The Arabic version of the Maslach Burnout Inventory (A-MBI-MP) is a valid and reliable tool for assessing burnout among Tunisian military personnel. The validated instrument can be used to offer early treatments and to promote the mental health of military personnel in high-stress situations. Full article

Few studies have examined how committing criminal acts of violence impacts the lives of perpetrators who were mentally ill at the time of offence and in which the act itself reflects behaviour that is uncharacteristic of the individual. Theoretical accounts and clinical reports describe a phenomenon termed moral injury, which profiles the deleterious emotional effects that can arise from actions that transgress moral beliefs and expectations. Shame, guilt, spiritual/existential conflict, and loss of trust are considered to be core symptoms of moral injury with growing empirical studies which examine moral injury in military and public safety worker samples. The extent to which these kinds of moral injury phenomena might be evident among mentally ill perpetrators was explored using a qualitative-methods approach in a sample of 19 adult participants hospitalized in a Canadian forensic programme inpatient service. The sample consisted of 13 male and 6 female patients, with a mean age of 36.2 years (SD = 10.8), and the majority diagnosed with schizophrenia or schizoaffective disorder. A qualitative interview was conducted where participants were asked to describe feelings about the index offence, the effect it has had on their well-being, and how they have coped with having committed the offence. Using a reflexive thematic analysis process, 5 themes and 23 subthemes were generated that relate to the various resultant impacts. The five themes which emerged were (1) Living with the Emotional Aftermath; (2) Trying to Make Sense and Coming to Terms; (3) My Eyes Have Opened; (4) Facing the Music; and (5) Moving On. The findings are discussed in terms of their implications for understanding forensic inpatients who may be attempting to come to terms with violence they committed while mentally ill and for informing moral injury intervention strategies which might be adapted for forensic mental health services and public health recidivism prevention programmes. Full article

Background/Objectives: Invasive Streptococcus pneumoniae disease (IPD) and invasive Haemophilus influenzae (IHI) infections cause disease in pediatric patients. The COVID-19 pandemic brought about a change in the rates of common viral illnesses that can lead to superimposed bacterial infections. Methods: A repeated monthly cross-sectional study was performed using inpatient data from the Military Health System Data Repository (MDR) to observe differences in IPD and IHI hospitalization rates before and during the COVID-19 pandemic starting in March 2018 and continuing to February 2023. Our study included a cohort of 1.27 million children under the age of 5 years old. Results: A total of 200 unique cases of IPD and 171 unique cases of IHI were identified. In Year 1 of the pandemic, the hospitalization rates for IHI and IPD decreased. In Year 2, IPD returned to the pre-pandemic baseline, and IHI remained below the baseline. In Year 3, IPD increased above the baseline, and IHI returned to the baseline. Conclusions: These data support the notion that the interventions implemented to reduce the spread of COVID-19, such as hand hygiene and social distancing, likely led to a reduction in the incidence of invasive disease. The subsequent relaxation of these mitigation strategies likely led to a resurgence of IHI and an increase in IPD in our population. Full article

Repeated exposure to low-level blast overpressure, frequently experienced during explosive breaching and heavy weapons use in training and operations, is increasingly recognised as a serious risk to the neurological health of military personnel. Although research on the underlying pathobiological mechanisms in humans remains limited, this study investigated the effects of such exposure on circulating molecular biomarkers associated with inflammation, neurovascular damage, and endothelial injury. Blood samples from military breachers were analysed for myeloperoxidase (MPO), matrix metalloproteinases (MMPs), and junctional proteins indicative of blood–brain barrier (BBB) disruption and endothelial damage, including occludin (OCLN), zonula occludens-1 (ZO-1), aquaporin-4 (AQP4), and syndecan-1 (SD-1). The results revealed significantly elevated levels of MPO, MMP-3, MMP-9, and MMP-10 in breachers compared to unexposed controls, suggesting heightened inflammation, oxidative stress, and vascular injury. Increased levels of OCLN and SD-1 further indicated BBB disruption and endothelial glycocalyx degradation in breachers. These findings highlight the potential for chronic neurovascular unit damage/dysfunction from repeated blast exposure and underscore the importance of early targeted interventions—such as reducing oxidative stress, reinforcing BBB integrity, and managing inflammation—that could be essential in mitigating the risk of long-term neurological impairment associated with blast exposure. Full article