Spectral components of heart rate variability determined by wavelet analysis

Lotric, Maja Bracic and Stefanovska, Aneta and Stajer, Dusan and Urbancic-Rovan, Vilma (2000) Spectral components of heart rate variability determined by wavelet analysis. Physiological Measurement, 21 (4). pp. 441-457. ISSN 0967-3334

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Abstract

Spectral components of heart rate variability (HRV) are determined in the time-frequency domain using a wavelet transform. Based on the finer estimation of low-frequency content enabled by the logarithmic resolution of the wavelet transform, corrections of spectral intervals, already defined by Fourier and model based methods, are proposed. The characteristic peaks between 0.0095 and 0.6, Hz. are traced in time and four spectral intervals are defined, I(0.0095-0.021 Hz), II (0.021-0.052 Hz), III (0.052-0.145 Hz) and IV (0.145-0.6 Hz), within which peaks are located for all subjects included. These intervals are shown to be invariant regardless of the age and the state of the system. We also show that the frequency and power of the spectral components are related to age, AMI and particularly to type II diabetes mellitus.

Item Type:
Journal Article
Journal or Publication Title:
Physiological Measurement
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/aacsb/disciplinebasedresearch
Subjects:
ID Code:
64388
Deposited By:
Deposited On:
09 May 2013 08:37
Refereed?:
Yes
Published?:
Published
Last Modified:
18 Mar 2020 03:55