Changes in multifractal properties for stable angina pectoris

Andrea Knežević, Mladen Martinis, Goran Krstačić and Emil Vargović

Physica A: Statistical Mechanics and its Applications, 2005, vol. 358, issue 2, 505-515

Abstract: The multifractal approach has been applied to temporal fluctuations of heartbeat (RR) intervals, measured in various regimes of physical activity (ergometric data), taken from healthy subjects and those having stable angina pectoris (SAP). The problem we address here is whether SAP changes multifractality observed in healthy subjects. The G-moment method is used to analyse the multifractal spectrum. It is observed that both sets of data characterize multifractality, but a different trend in multifractal behaviour is found for SAP disease, under pronounced physical activity.

Keywords: Multifractality; RR intervals; G-moments (search for similar items in EconPapers)
Date: 2005
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:358:y:2005:i:2:p:505-515

DOI: 10.1016/j.physa.2005.04.016

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