| Relations between parameters of spectral power densities and deterministic chaos of heart-rate variability. | |
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MedLine Citation:
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PMID: 8964936 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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To evaluate whether or not heart-rate variations (HRV) have both periodic and deterministic-chaotic properties in conscious and anaesthetized states, HRV of 9 rabbits were analysed by power spectral analysis and methods of deterministic chaos. In order to correlate these properties with the physiological structure of HRV, cholinergic and beta-adrenergic blockades and medullar transections were done. A predominant deterministic-chaotic structure of HRV with high fractal correlation dimension (CD) during conscious state changes to a more periodic structure and lower CD during general anaesthesia. The main periodic and deterministic-chaotic components of HRV are vagally mediated because of their strong reduction by cholinergic blockade, but not by beta-adrenergic blockade or medullar transection. |
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Authors:
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U Zwiener; D Hoyer; B Lüthke; K Schmidt; R Bauer |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of the autonomic nervous system Volume: 57 ISSN: 0165-1838 ISO Abbreviation: J. Auton. Nerv. Syst. Publication Date: 1996 Mar |
Date Detail:
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Created Date: 1996-12-03 Completed Date: 1996-12-03 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8003419 Medline TA: J Auton Nerv Syst Country: NETHERLANDS |
Other Details:
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Languages: eng Pagination: 132-5 Citation Subset: IM |
Affiliation:
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Institute of Pathophysiology, University of Jena, Germany. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Female Heart / drug effects Heart Rate / physiology* Male Rabbits Statistics as Topic Time Factors |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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