Modulação autonômica do ritmo cardíaco em profissionais da segurança pública e sua interação com o estresse psicossocial

• Autor(a) principal: Pestana, Andressa Braz Carlini
• Data de Publicação: 2024
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da Universidade Federal do Espírito Santo (riUfes)
• Texto Completo: http://repositorio.ufes.br/handle/10/17329
• topic: Área(s) do conhecimento do documento (Tabela CNPq); Sistema nervoso autônomo; sistema nervoso simpático; sistema nervoso parassimpático; frequência cardíaca; dinâmica não linear; militares; subject.br-rjbn

Introduction: the work of the military police is extremely important in the context of public security, however this activity presents numerous daily challenges that have repercussions on the physical and mental health of these professionals and in the different spheres of personal and family life. A simple and non-invasive measure such as heart rate variability (HRV) is capable of analyzing the modulation of the autonomic nervous system and may suggest a malfunction of the physiological system, with HRV being a sensitive and early indicator of health impairment. Objective: to analyze the autonomic modulation of heart rate in professionals who perform military public functions in the state of Espírito Santo. Method: cross-sectional study in which 71 participants over 18 years of age who worked in a public military role in the state of Espírito Santo were evaluated from August to November 2022. Weight, height, body composition and HRV were collected, followed by modulation analysis, autonomous through Kubios® software. For this analysis, heart rate was recorded beat by beat with individuals in the supine position for 25 minutes using a heart rate monitor. HRV indices were calculated using linear methods in the time and frequency domains, and by non-linear methods. The data were analyzed by comparing men and women, age groups 25 to 34 years and 35 to 54 years and BMI groups considered adequate (18.5 to 24.9 kg/m2), overweight (25.0 to 29.9 kg/m2 ) and obesity (> 30.0 kg/m2 ). Results: statistically significant differences were observed in the following variables between men and women SDNN (p=0.006), RMSSD (p=0.028), SD1 (p=0.001) and SD2 (p=0.017). Between the different BMI ranges SNS (p=0.031), Average RR (p=0.012) and Average HR (p=0.025) and in the different age groups PNS (p=0.007), SI (p=0.0034), SDNN (p=0.004), RMSSD (p=0.0013), SD1 (p=0.0013) and SD2 (p=0.0093). These variables were effective and sensitive in identifying differences in cardiac autonomic modulation between men and women. Frequency domain components (VLF, LF and HF) did not show significant differences. Conclusion: women had greater vagal tone and global HRV compared to men. Individuals classified as obese had greater sympathetic activity and individuals between 35 - 54 years of age had lower vagal tone and lower global HRV.