Heart rate variability, trait anxiety, and perceived stress among physically fit men and women
Heart rate variability, trait anxiety, and perceived stress among physically fit men and women
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DOI：
10.1016/s0167-8760(00)00085-4
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发表时间：
2000-08-01
影响因子：
3
通讯作者：
Blair, SN
中科院分区：
文献类型：
--
作者：
Dishman, RK;Nakamura, Y;Blair, SN
背景资料：从先前的报告中还不清楚焦虑或情绪压力的自我评定与心率变异性的副交感神经系统成分之间的关系是否独立于个性和心肺健康。我们在标准化运动试验之前在临床环境中检查了这些关系。方法与结果：心率变异性（HRV）进行了测量，在5分钟的仰卧休息92名健康男性（N = 52）和女性（N = 40），他们有高于平均水平的心肺适能，所示的峰值摄氧量在分级递增的跑步机运动。使用频谱分析将HRV数据集分解为低频（LF; 0.05-0.15 Hz）和高频（HF; 0.15-0.5 Hz）分量。在过去一周的特质焦虑和感知情绪压力的自我评价也进行了评估。结论：过去一周内的情绪压力与HRV的标准化HF分量呈负相关（P = 0.038）。这表明在感受到更多压力的男性和女性中，HRV的心脏迷走神经成分较低。这种关系与年龄、性别、特质焦虑和心肺功能无关。它也独立于心率;平均动脉血压;和呼吸率，这些因素可以影响HRV，并且可能在报告焦虑和感知压力的人中升高。我们的结论是，迷走神经调制的心脏周期似乎是敏感的最近的经验，持续的情绪压力，无论一个人的身体健康水平和倾向于经历焦虑。(C)2000 Elsevier Science B. V.保留所有权利。
Background: It is unclear from prior reports whether the relationships between self-ratings of anxiety or emotional stress and parasympathetic nervous system components of heart rate variability are independent of personality and cardiorespiratory fitness. We examined those relationships in a clinical setting prior to a standardized exercise test. Methods and results: Heart rate variability (HRV) was measured during 5 min of supine rest among 92 healthy men (N = 52) and women (N = 40) who had above-average cardiorespiratory fitness as indicated by peak oxygen uptake measured during grade-incremented treadmill exercise. HRV datasets were decomposed into low-frequency (LF; 0.05-0.15 Hz) and high-frequency (HF; 0.15-0.5 Hz) components using spectral analysis. Self-ratings of trait anxiety and perceived emotional stress during the past week were also assessed. Conclusions: There was an inverse relationship between perceived emotional stress during the past week and the normalized HF component of HRV (P = 0.038). This indicates a lower cardiac vagal component of HRV among men and women who perceived more stress. That relationship was independent of age, gender, trait anxiety, and cardiorespiratory fitness. It was also independent of heart rate; mean arterial blood pressure; and respiration rate, factors which can influence HRV and might be elevated among people reporting anxiety and perceived stress. We conclude that vagal modulation of heart period appears to be sensitive to the recent experience of persistent emotional stress, regardless of a person's level of physical fitness and disposition toward experiencing anxiety. (C) 2000 Elsevier Science B.V. All rights reserved.