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Article overview
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Critical Scale-invariance in Healthy Human Heart Rate | | Ken Kiyono
; Zbigniew R. Struzik
; Naoko Aoyagi
; Seiichiro Sakata
; Junichiro Hayano
; Yoshiharu Yamamoto
; | | Date: |
1 Oct 2004 | | Subject: | Tissues and Organs | q-bio.TO | | 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. | | Source: | arXiv, q-bio.TO/0409039 | | Services: | Forum | Review | PDF | Favorites | |
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