Efeitos do curso de formação de soldados sobre o sistema musculoesquelético, capacidades físicas e sistema comportamental de jovens: relação intrínseca entre performance física, dor física e estado emocional

Abstract

The career of soldiers in military organizations is characterized by an initial course, the soldier training course (CFSD). Objective: To understand what generates a high motor, psychological and cognitive demand in some vital systems, as well as to know the muscular, organic and biochemical adaptations before, during and after (CFSD). Methodology: 108 volunteers initially, all recruited in CFSD 2022. The study was cross-sectional and lasted 4 months. The assessments were carried out in the initial period of the CFSD course and in the final period of the course, where pain and musculoskeletal disorders were assessed using the Nordic musculoskeletal symptoms questionnaire, psychological profile assessment using the Beck depression psychological questionnaire, questionnaire of Stress Symptoms for Adults (ISSL) and the State-Trait Anxiety Inventory (STAI), and assessment of physical performance with two Fitness and Physical Capacity Tests (TACF) with blood lactate collection, and verification of maximum oxygen consumption VO2Max. Results: 99 volunteers completed the work. The results showed us that there was a significant improvement in the recruits in the distances from the 1st to the 2nd TACF, 1st TACF 2570±288.8 vs 2nd TACF 2750±233.9, and in VO2Max, 1st TACF 45.29±6.41 vs 2nd TACF 49.10±5.19, in addition, lactate levels showed a significant increase in the 2nd TACF in relation to the 1st TACF at all moments collected. Regarding the Nordic Pain Questionnaire, there was no significant difference between the first and second questionnaires, however, when compared by regions, there was an increase in pain in the last week, especially in the lower limbs when comparing the questionnaires. Regarding the ISSL and BDI-II scores, they were higher at the first moment, with ISSL pre (M = 14.86, SE = 1.21) and post (M = 12.25, SE = 1.20) and BDI-II pre (M = 9.28, SE = 1.22) and post (M = 6.82, SE = .64) STAI scores showed a significant difference only for trait anxiety, with higher scores also in first questionnaire pre (M = 20.75, SE = .77) and post (M = 18.28, SE = .61) . As for pain perception, it was positively correlated with stress symptoms, trait anxiety indicators and depression symptoms. Depression levels were also strong, positive, and significantly correlated with anxiety and stress symptoms. Furthermore, the correlation between trait anxiety and stress scores was positive and significant. Conclusion: The results show that CFSD evolves physically and mentally, leading recruits to improve VO2Max values, distance covered in TACF, improvement/stability in musculoskeletal injuries and improvement in symptoms and psychological assessment, reducing symptoms of stress, anxiety and depression.