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首页> 外文期刊>Psychosomatic Medicine: Journal of the American Psychosomatic Society >Job Stress and Heart Rate Variability: Findings From the ELSA-Brasil Cohort
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Job Stress and Heart Rate Variability: Findings From the ELSA-Brasil Cohort

机译：工作压力和心率变异性：Elsa-Brasil Cohort的结果

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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.
机译：客观的证据表明，在工作中暴露于心理社会压力可以抑制迷走阴茎，影响应对环境刺激的能力。我们调查了工作应变和低控制和在工作中的高需求，作为单独的措施，与心率变异性（HRV）的降低有关。方法这是巴西成人健康（ELSA-Brasil）巴西纵向研究的基线（2008-2010）的9658年积极工作者横断面研究。 HRV估计使用心电图记录10分钟，静止，检查以下索引：逐次差异的根均线，正常偏差正常，相邻的RR间隔的百分比持续超过50毫秒，低频（LF）和高频。作业应变是根据需求控制模型定义的。使用广义线性模型验证作业应变和HRV指数之间的独立关联，通过评估算术装置的比率来估计关联的大小。结果既不与HRV分别有关不利的需求控制关系也不是作业需求维度。然而，在LF平均值中，控制尺寸中的一个单元的增加与2.2％（95％置信区间= 1.014-1.029）的增量相关。在对社会渗目特征的调整后，评估现场，与健康相关行为和抑郁症进行调整，这种关联仍然存在统计学意义（算术手段的比率= 1.008; 95％置信区间= 1.0002-1.017）。结论工作控制与大型公务员队列中的HRV有关。然而，重要的是要强调，只有LF指数仍然与低作业控制相关联。需要进一步的研究来发展对心理社会方面和自主平衡关系的更大了解。

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