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The effect of low-frequency oscillations on cardio-respiratory synchronization.

Kenwright, D. A. and Bahraminisab, A. and Stefanovska, Aneta and McClintock, Peter V. E. (2008) The effect of low-frequency oscillations on cardio-respiratory synchronization. European Physical Journal B, 65 (3). pp. 425-433. ISSN 1434-6028

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Abstract

We show that the transitions which occur between close orders of synchronization in the cardiorespiratory system are mainly due to modulation of the cardiac and respiratory processes by low-frequency components. The experimental evidence is derived from recordings on healthy subjects at rest and during exercise. Exercise acts as a perturbation of the system that alters the mean cardiac and respiratory frequencies and changes the amount of their modulation by low-frequency oscillations. The conclusion is supported by numerical evidence based on a model of phase-coupled oscillators, with white noise and lowfrequency noise. Both the experimental and numerical approaches confirm that low-frequency oscillations play a significant role in the transitional behavior between close orders of synchronization.

Item Type: Article
Journal or Publication Title: European Physical Journal B
Uncontrolled Keywords: 05.45.Xt Synchronization ; coupled oscillators ; 87.19.ug Heart and lung dynamics ; 87.18.Tt Noise in biological systems Time series analysis ; 05.45.Tp Time series analysis
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Lancaster Environment Centre
Faculty of Science and Technology > Physics
ID Code: 22896
Deposited By: Professor P. V. E. McClintock
Deposited On: 06 Jan 2009 18:53
Refereed?: Yes
Published?: Published
Last Modified: 22 Apr 2013 10:32
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/22896

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