Changes in the Hurst exponent of heartbeat intervals during physical activities

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dc.creatorMartinis, M.
dc.creatorKnežević, A.
dc.creatorKrstačić, G.
dc.creatorVargović, E.
dc.date2002-12-06
dc.date.accessioned2026-07-07T05:48:32Z
dc.date.available2026-07-07T05:48:32Z
dc.descriptionThe fractal scaling properties of the heartbeat time series are studied in a controlled ergometric regime using the Hurst rescaled range R/S analysis. The long-time "memory effect" quantified by the value of the Hurst exponent $H>0.5$ is found to increase during progresive physical activity at healthy subjects in contrast to those having stable angina pectoris (SAP), where it is decreasing. We argue that this finding may be used as a useful new diagnostic parameter for short heartbeat time series.
dc.description9 pages, LaTex, 4 figures
dc.identifierhttps://arxiv.org/abs/physics/0212029
dc.identifierhttp://arxiv.org/abs/physics/0212029
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/85060
dc.subjectMedical Physics
dc.subjectQuantitative Biology
dc.titleChanges in the Hurst exponent of heartbeat intervals during physical activities
dc.typetext

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