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  • Title: [New experimental evidence of complex dynamics of heart beat. II. Correlation dimension, Lyapunov's exponents].
    Author: Pierro C, Pierro V, Iacono A.
    Journal: Cardiologia; 1998 Aug; 43(8):819-24. PubMed ID: 9808872.
    Abstract:
    In this paper we applied mathematical techniques of non-linear dynamics, to an ECG signal. The first step is to compute the shift-delay time, via average displacement of the digital ECG. Phase space is constructed at a prescribed shift-delay and correlation dimension and dominant Lyapounov exponent versus the embedding dimension are monitored. This technique was applied to 5 healthy volunteers and 4 patients with VVI pacemaker.
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