What does the correlation dimension of the human heart rate measure?
Medical Physics
2007-05-23 v2 Data Analysis, Statistics and Probability
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Abstract
It is shown that in the case of human heart rate, the scaling behaviour of the correlation sum (calculated by the Grassberger-Procaccia algorithm) is a result of the interplay of various factors: finite resolution of the apparatus (finite-size effects), a wide dynamic range of mean heart rate, the amplitude of short-time variability being a decreasing function of the mean heart rate. The value of the scaling exponent depends on all these factors and is a certain measure of short-time variability of the signal.
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Cite
@article{arxiv.physics/0112031,
title = {What does the correlation dimension of the human heart rate measure?},
author = {M. Sakki and J. Kalda and M. Vainu and M. Laan},
journal= {arXiv preprint arXiv:physics/0112031},
year = {2007}
}
Comments
5 pages, 4 figures