Complexity analyses show two distinct types of nonlinear dynamics in short heart period variability recordings
Articolo
Data di Pubblicazione:
2015
Citazione:
Complexity analyses show two distinct types of nonlinear dynamics in short heart period variability recordings / A. Porta, V. Bari, A. Marchi, B. De Maria, D. Cysarz, P. Van Leeuwen, A.C.M. Takahashi, A.M. Catai, T. Gnecchi-Ruscone. - In: FRONTIERS IN PHYSIOLOGY. - ISSN 1664-042X. - 6(2015 Mar 10), pp. 71.1-71.7. [10.3389/fphys.2015.00071]
Abstract:
Two diverse complexity metrics quantifying time irreversibility and local prediction, in connection with a surrogate data approach, were utilized to detect nonlinear dynamics in short heart period (HP) variability series recorded in fetuses, as a function of the gestational period, and in healthy humans, as a function of the magnitude of the orthostatic challenge. The metrics indicated the presence of two distinct types of nonlinear HP dynamics characterized by diverse ranges of time scales. These findings stress the need to render more specific the analysis of nonlinear components of HP dynamics by accounting for different temporal scales.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
time irreversibility; local prediction; multiscale analysis; head-up tilt; gestational age; heart rate variability; autonomic nervous system; cardiovascular control
Elenco autori:
A. Porta, V. Bari, A. Marchi, B. De Maria, D. Cysarz, P. Van Leeuwen, A.C.M. Takahashi, A.M. Catai, T. Gnecchi Ruscone
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