Job Stress and Heart Rate Variability: Findings From the ELSA-Brasil Cohort

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art_OLIVEIRA JUNIOR_Job_Stress_and_Heart_Rate_Variability_Findings_From_2019.PDF (191 KB)
Citações na Scopus
6
Tipo de produção
article
Data de publicação
2019
Editora
LIPPINCOTT WILLIAMS & WILKINS
DOI
Indexadores
Scopus
Web of Science
PubMed
Título da Revista
ISSN da Revista
Título do Volume
Autores
OLIVEIRA JUNIOR, Itamar Gusmao
V, Lidyane Camelo
MIL, Jose Geraldo
RIBEIRO, Antonio Luiz
FONSECA, Maria de Jesus Mendes da
GRIEP, Rosane Harter
BARRETO, Sandhi Maria
GIATTI, Luana
Autor de Grupo de pesquisa
Editores
Coordenadores
Organizadores
Citação
PSYCHOSOMATIC MEDICINE, v.81, n.6, p.536-544, 2019
Projetos de Pesquisa
Unidades Organizacionais
Fascículo
Resumo
Objective Evidence suggests that exposure to psychosocial stress at work can inhibit vagal tonus, influencing the capacity to respond to environmental stimuli. We investigated whether job strain and low control and high demand at work, as separate measures, are associated with a reduction in heart rate variability (HRV). Methods This is a cross-sectional study with 9658 active workers at the baseline (2008-2010) of the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil). HRV was estimated using electrocardiographic recordings for 10 minutes, at rest, examining the following indices were used: root mean square of successive difference, standard deviation of normal to normal, percentage of adjacent R-R intervals with a difference lasting more than 50 ms, low frequency (LF), and high frequency. Job strain was defined based on the demand-control model. Independent associations between job strain and HRV indices were verified using generalized linear models and the magnitude of the association was estimated by evaluating the ratios of arithmetic means. Results Neither the unfavorable demand-control relation nor job demand dimension separately was associated with HRV. However, the increase of one unit in the control dimension was associated with an increment of 2.2% (95% confidence interval = 1.014-1.029) in the LF mean. After adjustments for sociodemographic characteristics, assessment site, health-related behaviors, and depression, this association remained statistically significant (ratio of arithmetic means = 1.008; 95% confidence interval = 1.0002-1.017). Conclusions Job control was associated with HRV in a large cohort of civil servants. Nevertheless, it is important to emphasize that only the LF index remained associated with low job control. Further studies are needed to develop a greater understanding of the relationship of psychosocial aspects and autonomic balance.
Palavras-chave
demand-control model, heart rate variability, job strain, job stress, psychosocial factor
URI
https://observatorio.fm.usp.br/handle/OPI/32983
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Coleções
Artigos e Materiais de Revistas Científicas - FM/MCM
Artigos e Materiais de Revistas Científicas - LIM/20