Respiratory sinus arrhythmia: time domain characterization using autoregressive moving average analysis.
Respiratory sinus arrhythmia: time domain characterization using autoregressive moving average analysis.
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呼吸性窦性心律失常：使用自回归移动平均分析进行时域表征。
DOI：
10.1152/ajpheart.1995.268.6.h2232
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
Saul,JP
中科院分区：
文献类型：
--
作者：
Triedman,JK;Perrott,MH;Cohen,RJ;Saul,JP
基于傅立叶的技术在数学上是非因果的，因此它们在包含反馈的系统(如心血管系统)中的应用受到限制。在这项研究中，使用了一种数学因果时间域技术--自回归滑动平均(ARMA)分析，对8人在心脏自主神经完全阻断前和期间的呼吸和动脉血压与心率的关系进行了参数化。由此产生的脉冲反应曲线表明，呼吸与心率的关系表现为心率立即增加9.1+/-1.8次·min-1.1-1，然后心率短暂下降至基线以下的-1.2+/-0.5次·min-1.1-1。血压与心率的关系表现为心率减慢至-0.5+/-0.1次·分-1毫米汞柱-1，然后逐渐恢复到基线水平。在自主神经封锁后，这两种关系几乎都消失了，这表明自主调解。从呼吸到心率脉冲反应获得的最大值也与高频迷走心率控制的频域测量结果有很好的相关性(r=0.88)。ARMA分析可以作为心血管建模中自主心率控制的时间域表示。
Fourier-based techniques are mathematically noncausal and are therefore limited in their application to feedback-containing systems, such as the cardiovascular system. In this study, a mathematically causal time domain technique, autoregressive moving average (ARMA) analysis, was used to parameterize the relations of respiration and arterial blood pressure to heart rate in eight humans before and during total cardiac autonomic blockade. Impulse-response curves thus generated showed the relation of respiration to heart rate to be characterized by an immediate increase in heart rate of 9.1 +/- 1.8 beats.min-1.l-1, followed by a transient mild decrease in heart rate to -1.2 +/- 0.5 beats.min-1.l-1 below baseline. The relation of blood pressure to heart rate was characterized by a slower decrease in heart rate of -0.5 +/- 0.1 beats.min-1.mmHg-1, followed by a gradual return to baseline. Both of these relations nearly disappeared after autonomic blockade, indicating autonomic mediation. Maximum values obtained from the respiration to heart rate impulse responses were also well correlated with frequency domain measures of high-frequency "vagal" heart rate control (r = 0.88). ARMA analysis may be useful as a time domain representation of autonomic heart rate control for cardiovascular modeling.