Joint symbolic analyses of heart rate, blood pressure, and respiratory dynamics

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dc.contributor.authorBaumert, M.
dc.contributor.authorJavorka, M.
dc.contributor.authorKabir, M.
dc.date.issued2013
dc.description.abstract<h4>Introduction</h4>The dynamics of cardiovascular variables are modulated by respiration. The aim of this study was to assess baroreflex function in normal subjects based on the joint symbolic dynamics of heart rate, blood pressure and respiration.<h4>Methods</h4>ECG, continuous blood pressure and respiration were recorded in ten healthy subjects during rest in the supine position and upon standing. Beat-to-beat time series of heart rate, systolic blood pressure and respiratory phase were extracted and transformed into binary symbol sequences. Words of length two that were reflective of baroreflex activity were statistically analysed with respect to the respiratory phase.<h4>Results</h4>Symbolic analysis showed a significant influence of the respiratory phase on the occurrence of baroreflex patterns. Upon standing, the frequency of baroreflex words increased and the effect of respiration appeared to be reduced.<h4>Conclusions</h4>Symbolic dynamics provide a simple representation of cardiovascular dynamics and may be useful for assessing baroreflex function.
dc.description.statementofresponsibilityMathias Baumert, Michal Javorka, Muammar M. Kabir
dc.identifier.citationJournal of Electrocardiology, 2013; 46(6):569-573
dc.identifier.doi10.1016/j.jelectrocard.2013.07.009
dc.identifier.issn0022-0736
dc.identifier.issn1532-8430
dc.identifier.orcidBaumert, M. [0000-0003-2984-2167]
dc.identifier.urihttp://hdl.handle.net/2440/81676
dc.language.isoen
dc.publisherChurchill Livingstone Inc Medical Publishers
dc.relation.granthttp://purl.org/au-research/grants/arc/DP110102049
dc.rightsCopyright © 2013 Elsevier Inc. All rights reserved.
dc.source.urihttps://doi.org/10.1016/j.jelectrocard.2013.07.009
dc.subjectBaroreflex
dc.subjectHeart rate variability
dc.subjectBlood pressure variability
dc.subjectSymbolic dynamics
dc.titleJoint symbolic analyses of heart rate, blood pressure, and respiratory dynamics
dc.typeJournal article
pubs.publication-statusPublished

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