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New indices for quantification of the power spectrum of heart rate variability time series without the need of any frequency band definition

Garcia-Gonzalez, M. A, Fernandez-Chimeno, M, Ferrer, Justine, Excorihuela, R. M, Parrado, E, Capdevila, L, Benitez, Adolfo, Angulo, R, Rodriguez, Ferran-Agustin, Iglesias, Xavier, Bescos, Raul, Marina, Michel, Madulles, Josep-Maria and Ramos-Castro, J (2011) New indices for quantification of the power spectrum of heart rate variability time series without the need of any frequency band definition. Physiological Measurement , 32 (8). pp. 995-1009. ISSN 0967-3334 (print) 1361-6579 (on-line)

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Abstract

This paper presents a new family of indices for the frequency domain analysis of heart rate variability time series that do not need any frequency band definition. After proper detrending of the time series, a cumulated power spectrum is obtained and frequencies that contain a certain percentage of the power below them are identified, so median frequency, bandwidth and a measure of the power spectrum asymmetry are proposed to complement or improve the classical spectral indices as the ratio of the powers of LF and HF bands (LF/HF). In normal conditions the median frequency provides similar information as the classical indices, while the bandwidth and asymmetry can be complementary measures of the physiological state of the tested subject. The proposed indices seem to be a good choice for tracking changes in the power spectrum in exercise stress, and they can guide in the determination of frequency band limits in other animal species

Item Type: Article
Uncontrolled Keywords: exercise, human and animal measurements, paced breathing, spectral analysis, frequency band, exercise stress, physiological state,
Subjects: FOR Classification > 1106 Human Movement and Sports Science
Faculty/School/Research Centre/Department > School of Sport and Exercise Science
Depositing User: Ms Marcia Millard
Date Deposited: 06 Jan 2014 23:20
Last Modified: 07 Feb 2017 10:32
URI: http://vuir.vu.edu.au/id/eprint/24171
DOI: https://doi.org/10.1088/0967-3334/32/8/001
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Citations in Scopus: 6 - View on Scopus

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