Multifractality in human heartbeat dynamics

Plamen Ch Ivanov*, Luís A. Nunes Amaral, Ary L. Goldberger, Shlomo Havlin, Michael G. Rosenblum, Zbigniew R. Struzik, H. Eugene Stanley

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1262 Scopus citations

Abstract

There is evidence that physiological signals under healthy conditions may have a fractal temporal structure. Here we investigate the possibility that time series generated by certain physiological control systems may be members of a special class of complex processes, termed multifractal, which require a large number of exponents to characterize their scaling properties. We report on evidence for multifractality in a biological dynamical system, the healthy human heartbeat, and show that the multifractal character and nonlinear properties of the healthy heart rate are encoded in the Fourier phases. We uncover a loss of multifractality for a life-threatening condition, congestive heart failure.

Original languageEnglish (US)
Pages (from-to)461-465
Number of pages5
JournalNature
Volume399
Issue number6735
DOIs
StatePublished - Jun 3 1999

ASJC Scopus subject areas

  • General

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