The fractal characteristics of heart rate variability are usually assessed by estimating short- and long-term scale coefficients, α1and α2, by detrended fluctuation analysis. Recently we extended this approach introducing a temporal spectrum of scale coefficients, α(τ), that describes the deviations of self-similarity from the bi-fractal model at each scale τ. Until now relatively short recordings were considered and α(τ) was characterized only for scales τ<100 s. Aim of this work is to describe α(τ) of cardiovascular signals extending the range τ by an order of magnitude with respect to previous studies.

The fractal structure of cardiovascular beat-to-beat series described over a broad range of scales: Differences between blood pressure and heart rate, and the effect of gender / Castiglioni, Paolo; Brambilla, Valerio; Brambilla, Lorenzo; Gualerzi, Massimo; Lazzeroni, Davide; Coruzzi, Paolo. - 2015:(2015), pp. 290-293. [10.1109/EMBC.2015.7318357]

The fractal structure of cardiovascular beat-to-beat series described over a broad range of scales: Differences between blood pressure and heart rate, and the effect of gender

BRAMBILLA, Valerio;BRAMBILLA, LORENZO;GUALERZI, Massimo;LAZZERONI, Davide;CORUZZI, Paolo
2015-01-01

Abstract

The fractal characteristics of heart rate variability are usually assessed by estimating short- and long-term scale coefficients, α1and α2, by detrended fluctuation analysis. Recently we extended this approach introducing a temporal spectrum of scale coefficients, α(τ), that describes the deviations of self-similarity from the bi-fractal model at each scale τ. Until now relatively short recordings were considered and α(τ) was characterized only for scales τ<100 s. Aim of this work is to describe α(τ) of cardiovascular signals extending the range τ by an order of magnitude with respect to previous studies.
The fractal structure of cardiovascular beat-to-beat series described over a broad range of scales: Differences between blood pressure and heart rate, and the effect of gender / Castiglioni, Paolo; Brambilla, Valerio; Brambilla, Lorenzo; Gualerzi, Massimo; Lazzeroni, Davide; Coruzzi, Paolo. - 2015:(2015), pp. 290-293. [10.1109/EMBC.2015.7318357]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/2808047
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