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Licensed Unlicensed Requires Authentication Published by De Gruyter October 25, 2006

Heart rate asymmetry by Poincaré plots of RR intervals

  • Przemyslaw Guzik , Jaroslaw Piskorski , Tomasz Krauze , Andrzej Wykretowicz and Henryk Wysocki

Abstract

The Poincaré plot is a widely used method for visualizing and calculating heart rate variability and for investigating the oscillatory nature of heart action. We show that the Poincaré plot produced using physiological data for RR intervals is asymmetric. This suggests that the processes of heart rate acceleration (shortening of consecutive RR intervals) and deceleration (prolongation of successive RR intervals) might be asymmetric. To investigate this phenomenon, we define descriptors quantifying the heart rate asymmetry and present the results of a study involving 5-min ECG recordings of 50 healthy subjects in which, despite of the shortness of the recordings, the asymmetry is clearly visible.


Corresponding author: Przemyslaw Guzik, Department of Cardiology – Intensive Therapy, University School of Medicine in Poznan, 49 Przybyszewskiego Str., 60-355 Poznan, Poland Phone: +48-61-8691391 Fax: +48-61-8691689

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Published Online: 2006-10-25
Published in Print: 2006-10-01

©2006 by Walter de Gruyter Berlin New York

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