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首页> 外文期刊>The Journal of Physiology >Rate of rise in diastolic blood pressure influences vascular sympathetic response to mental stress
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Rate of rise in diastolic blood pressure influences vascular sympathetic response to mental stress

机译:舒张压的上升速度影响对精神压力的血管交感反应

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Research indicates that individuals may experience a rise (positive responders) or fall (negative responders) in muscle sympathetic nerve activity (MSNA) during mental stress. In this study, we examined the early blood pressure responses (including the peak, time of peak and rate of rise in blood pressure) to mental stress in positive and negative responders. Negative MSNA responders to mental stress exhibit a more rapid rise in diastolic pressure at the onset of the stressor, suggesting a baroreflex-mediated suppression of MSNA. In positive responders there is a more sluggish rise in blood pressure during mental stress, which appears to be MSNA-driven. This study suggests that whether MSNA has a role in the pressor response is dependent upon the reactivity of blood pressure early in the task.
机译:研究表明,在精神压力期间,个体的肌肉交感神经活动(MSNA)可能会上升(阳性反应)或下降(阴性反应)。在这项研究中,我们检查了正面和负面反应者对精神压力的早期血压反应(包括峰值,峰值时间和血压升高速率)。精神压力的负MSNA反应器在压力源发作时舒张压上升更快,表明压力反射介导的MSNA抑制。在积极的反应者中,精神压力期间的血压上升较缓慢,这似乎是MSNA驱动的。这项研究表明,MSNA是否在升压反应中起作用取决于任务初期血压的反应性。

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