Cross-correlation of heartbeat and respiration rhythms

A. Capurro, C.P. Malta, L. Diambra, P. Contreras and E.R. Migliaro

Physica A: Statistical Mechanics and its Applications, 2005, vol. 356, issue 1, 37-42

Abstract: The cross-correlation function between respiration and heart beat interval series shows that during metronomized breathing11Metronomized breathing refers to the situation where a subject breathes following the rhythm of a metronome. the heart beat follows the respiration more closely than during spontaneous breathing. We reproduced the heart beat interval modulations during metronomized breathing using a biophysical model of the sinoatrial node excited by an input signal formed by the recorded respiration. In the case of spontaneous breathing, a good agreement with the experimental data was obtained only by using an input signal formed by the sum of the recorded respiration and a realization of correlated noise.

Keywords: Respiratory sinus arrhythmia; Metronomized breathing; Pacemaker (search for similar items in EconPapers)
Date: 2005
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:356:y:2005:i:1:p:37-42

DOI: 10.1016/j.physa.2005.05.009

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