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:
Journal Article
Journal or Publication Title:
European Physical Journal B
Additional Information:
The final publication is available at Springer via
Uncontrolled Keywords:
?? 05.45.xt synchronizationcoupled oscillators heart and lung dynamics noise in biological systems time series time series analysiselectronic, optical and magnetic materialscondensed matter physicsqc physics ??
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Deposited On:
06 Jan 2009 18:53
Last Modified:
05 Jan 2024 00:09