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

Kenwright, David 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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    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
    Additional Information: The final publication is available at Springer via
    Uncontrolled Keywords: 05.45.Xt Synchronization ; coupled oscillators ; 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 > Physics
    ID Code: 22896
    Deposited By: Professor P. V. E. McClintock
    Deposited On: 06 Jan 2009 18:53
    Refereed?: Yes
    Published?: Published
    Last Modified: 09 Sep 2015 07:15
    Identification Number:

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