THE METRICS OF CARDIAC CHRONOTROPISM - BIOMETRIC PERSPECTIVES
THE METRICS OF CARDIAC CHRONOTROPISM - BIOMETRIC PERSPECTIVES
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DOI：
10.1111/j.1469-8986.1995.tb03308.x
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发表时间：
1995-03-01
期刊：
影响因子：
3.7
通讯作者：
QUIGLEY, KS
中科院分区：
文献类型：
--
作者：
BERNTSON, GG;CACIOPPO, JT;QUIGLEY, KS
从定量和统计的角度考虑了心脏周期与心率作为变时指标的选择，但这两种指标都没有产生普遍的偏好。在本文中，我们讨论了生物计量学的考虑，对选择最佳的变时度量。生物计量学证据显示，与心脏的变时效应有关的自主神经传输的传递函数在心脏周期上比在心率上更接近线性。这为心脏周期作为一种变时指标提供了相当大的优势，并有助于心理生理关系的研究。我们进一步表明，心期提供了更大的灵活性，因为心期数据可以以心脏时间单位（心跳）或实时单位(s)进行评估，而心率数据只能实时分析。这些考虑表明心脏周期作为变时指标有明显的优势。
The selection of heart period versus heart rate as a chronotropic metric has been considered from quantitative and statistical perspectives, which have not yielded a universal preference for either metric. In the present paper, we discuss biometric considerations that bear on the selection of the optimal chronotropic metric. Biometric evidence reveals that the transfer functions relating autonomic nerve traffic to chronotropic effects on the heart are more nearly linear for heart period than for heart rate. This confers considerable advantage on heart period as a chronotropic metric and can facilitate the study of psychophysiological relationships. We further show that heart period offers greater flexibility, because heart period data can be evaluated in cardiac time units (beats) or in real-time units (s), whereas heart rate data can only be analyzed in real time. These considerations suggest clear advantages to heart period as a chronotropic metric.