Volume 87, Number 1, July 2009
|Number of page(s)||6|
|Section||Interdisciplinary Physics and Related Areas of Science and Technology|
|Published online||17 July 2009|
Heart rate variability in natural time and 1/f “noise”
Solid State Section and Solid Earth Physics Institute, Physics Department, University of Athens Panepistimiopolis, Zografos 157 84, Athens, Greece, EU
Corresponding author: firstname.lastname@example.org
Accepted: 16 June 2009
Several studies have shown that heart rate fluctuations exhibit the ubiquitous behavior which is altered in desease. Furthermore, the analysis of electrocardiograms in natural time reveals that important malfunctions in the complex system of the human heart can be identified. Here, we present a simple evolution model in natural time that exhibits the behavior with a close to unity. The results of this model are consistent with a progressive modification of heart rate variability in healthy children and adolescents. The model results in complexity measures that separate healthy dynamics from patients as well as from sudden cardiac death individuals.
PACS: 87.10.-e – General theory and mathematical aspects / 87.19.Hh – Cardiac dynamics / 89.75.-k – Complex systems
© EPLA, 2009
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