Poincaré plot interpretation using a physiological model of HRV based on a network of oscillators

DOI Web Site 被引用文献7件
  • Michael Brennan
    Department of Electrical and Electronic Engineering, University of Melbourne, Parkville, Victoria 3010; and
  • Marimuthu Palaniswami
    Department of Electrical and Electronic Engineering, University of Melbourne, Parkville, Victoria 3010; and
  • Peter Kamen
    Department of Cardiology, Austin Hospital, Melbourne, Victoria 3084, Australia

書誌事項

公開日
2002-11-01
DOI
  • 10.1152/ajpheart.00405.2000
公開者
American Physiological Society

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<jats:p> In this paper, we develop a physiological oscillator model of which the output mimics the shape of the R-R interval Poincaré plot. To validate the model, simulations of various nervous conditions are compared with heart rate variability (HRV) data obtained from subjects under each prescribed condition. For a variety of sympathovagal balances, our model generates Poincaréplots that undergo alterations strongly resembling those of actual R-R intervals. By exploiting the oscillator basis of our model, we detail the way that low- and high-frequency modulation of the sinus node translates into R-R interval Poincaré plot shape by way of simulations and analytic results. With the use of our model, we establish that the length and width of a Poincaré plot are a weighted combination of low- and high-frequency power. This provides a theoretical link between frequency-domain spectral analysis techniques and time-domain Poincaré plot analysis. We ascertain the degree to which these principles apply to real R-R intervals by testing the mathematical relationships on a set of data and establish that the principles are clearly evident in actual HRV records. </jats:p>

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