Critical Scale-invariance in Healthy Human Heart Rate
Tissues and Organs
2009-11-10 v1
Abstract
We demonstrate the robust scale-invariance in the probability density function (PDF) of detrended healthy human heart rate increments, which is preserved not only in a quiescent condition, but also in a dynamic state where the mean level of heart rate is dramatically changing. This scale-independent and fractal structure is markedly different from the scale-dependent PDF evolution observed in a turbulent-like, cascade heart rate model. These results strongly support the view that healthy human heart rate is controlled to converge continually to a critical state.
Keywords
Cite
@article{arxiv.q-bio/0409039,
title = {Critical Scale-invariance in Healthy Human Heart Rate},
author = {Ken Kiyono and Zbigniew R. Struzik and Naoko Aoyagi and Seiichiro Sakata and Junichiro Hayano and Yoshiharu Yamamoto},
journal= {arXiv preprint arXiv:q-bio/0409039},
year = {2009}
}
Comments
9 pages, 3 figures. Phys. Rev. Lett., to appear (2004)