Influence of the loss of time-constants repertoire in pathologic heartbeat dynamics

L. Guzmán-Vargas; A. Muoz-Diosdado; F. Angulo-Brown

doi:10.1016/j.physa.2004.09.019

Influence of the loss of time-constants repertoire in pathologic heartbeat dynamics

L. Guzmán-Vargas, A. Muoz-Diosdado, F. Angulo-Brown

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26 Scopus citations

Abstract

We present a fractal analysis of diurnal heart interbeat time series from healthy young subjects and patients with congestive heart failure. We describe some differences between these groups by means of the calculation of some scale-invariant exponents. A previous simple model to reproduce the observed differences is briefly described (Phys. Rev. E 67 (2003) 052901). The model is based in first-order autoregressive processes and consists in the combination of time constants. We suggest that some changes occurring with disease could be related to the participation or absence of time constants. Finally, we also present a multifractal analysis of simulated sequences and their comparison with real data.

Original language	English
Pages (from-to)	304-316
Number of pages	13
Journal	Physica A: Statistical Mechanics and its Applications
Volume	348
DOIs	https://doi.org/10.1016/j.physa.2004.09.019
State	Published - 15 Mar 2005

Keywords

Heart rate dynamics
Time constants
Time series

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10.1016/j.physa.2004.09.019

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title = "Influence of the loss of time-constants repertoire in pathologic heartbeat dynamics",

abstract = "We present a fractal analysis of diurnal heart interbeat time series from healthy young subjects and patients with congestive heart failure. We describe some differences between these groups by means of the calculation of some scale-invariant exponents. A previous simple model to reproduce the observed differences is briefly described (Phys. Rev. E 67 (2003) 052901). The model is based in first-order autoregressive processes and consists in the combination of time constants. We suggest that some changes occurring with disease could be related to the participation or absence of time constants. Finally, we also present a multifractal analysis of simulated sequences and their comparison with real data.",

keywords = "Heart rate dynamics, Time constants, Time series",

author = "L. Guzm{\'a}n-Vargas and A. Muoz-Diosdado and F. Angulo-Brown",

note = "Funding Information: We thank M. Santill{\'a}n for stimulating suggestions and E. Calleja for fruitful discussions. This work was supported by EDI-IPN and COFAA-IPN. ",

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T1 - Influence of the loss of time-constants repertoire in pathologic heartbeat dynamics

AU - Guzmán-Vargas, L.

AU - Muoz-Diosdado, A.

AU - Angulo-Brown, F.

N1 - Funding Information: We thank M. Santillán for stimulating suggestions and E. Calleja for fruitful discussions. This work was supported by EDI-IPN and COFAA-IPN.

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N2 - We present a fractal analysis of diurnal heart interbeat time series from healthy young subjects and patients with congestive heart failure. We describe some differences between these groups by means of the calculation of some scale-invariant exponents. A previous simple model to reproduce the observed differences is briefly described (Phys. Rev. E 67 (2003) 052901). The model is based in first-order autoregressive processes and consists in the combination of time constants. We suggest that some changes occurring with disease could be related to the participation or absence of time constants. Finally, we also present a multifractal analysis of simulated sequences and their comparison with real data.

AB - We present a fractal analysis of diurnal heart interbeat time series from healthy young subjects and patients with congestive heart failure. We describe some differences between these groups by means of the calculation of some scale-invariant exponents. A previous simple model to reproduce the observed differences is briefly described (Phys. Rev. E 67 (2003) 052901). The model is based in first-order autoregressive processes and consists in the combination of time constants. We suggest that some changes occurring with disease could be related to the participation or absence of time constants. Finally, we also present a multifractal analysis of simulated sequences and their comparison with real data.

KW - Heart rate dynamics

KW - Time constants

KW - Time series

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DO - 10.1016/j.physa.2004.09.019

M3 - Artículo

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VL - 348

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EP - 316

JO - Physica A: Statistical Mechanics and its Applications

JF - Physica A: Statistical Mechanics and its Applications

ER -

Influence of the loss of time-constants repertoire in pathologic heartbeat dynamics

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Keywords

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