Fractal dynamics of heart rate variability for short term

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dc.contributor.authorCardoso, Marco A.
dc.contributor.authorAntonio, Ana Marcia
dc.contributor.authorAbreu, Luiz Carlos de
dc.contributor.authorRaimundo, Rodrigo Daminello
dc.contributor.authorFontes, Anne Michelli G.
dc.contributor.authorSilva, Ariany Garcia da
dc.contributor.authorOgata, Cristiane Mayumi
dc.contributor.authorMorini, Sarah Moreno
dc.contributor.authorSousa, Fernando Henrique
dc.contributor.authorAmaral, Joice Anaize Tonon do
dc.contributor.authorNogueira, MArcela Leme
dc.contributor.authorCano, Amanda de Souza
dc.contributor.authorValenti, Vitor Engrácia [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionFaculdade de Medicina do ABC (FMABC)
dc.date.accessioned2015-02-24T13:58:07Z
dc.date.available2015-02-24T13:58:07Z
dc.date.issued2014
dc.description.abstractThe fractal analysis of heart rate variability (HRV) has been associated to the chaos theory. We evaluated the association of the fractal exponents of HRV with the time and frequency domain and geometric indices of HRV for short period. HRV was analyzed with a minimal number of 256 RR intervals in the time (SDNN-standard deviation of normal-to-normal R-R intervals, pNN50-percentage of adjacent RR intervals with a difference of duration greater than 50ms and RMSSD-root-mean square of differences between adjacent normal RR intervals in a time interval) and frequency (LF-low frequency, HF-high frequency and LF/HF ratio) domains. The geometric indexes were also analyzed (RRtri-triangular index, TINN-triangular interpolation of RR intervals and Poincaré plot) as well as short and long-term fractal exponents (alpha-1 and alpha-2) of the detrended fluctuation analysis (DFA). We observed strong correlation of the alpha-1 exponent with RMSSD, pNN50, SDNN/RMSSD, LF (nu), HF (nu), LF/HF ratio, SD1 and SD1/Sd2 ratio. In conclusion, we suggest that the alpha-1 exponent could be applied for HRV analysis with a minimal number of 256 RR intervals.en
dc.description.affiliationUnespDepartamento de Fonoaudiologia, Faculdade de Filosofia e Ciências, UNESP, Marília
dc.description.affiliationUnespFaculdade de Ciência, UNESP, Bauru
dc.format.extent137-142
dc.identifierhttp://researchpub.org/journal/jcvd/number/vol2-no3/vol2-no3-3.pdf
dc.identifier.citationJournal of Cardiovascular Disease, v. 2, n. 3, p. 137-142, 2014.
dc.identifier.fileISSN23304596-2014-02-02-137-142.pdf
dc.identifier.issn2330-4596
dc.identifier.lattes6796970691432850
dc.identifier.lattes8456421836597174
dc.identifier.urihttp://hdl.handle.net/11449/115488
dc.language.isoeng
dc.relation.ispartofJournal of Cardiovascular Disease
dc.rights.accessRightsAcesso aberto
dc.sourceCurrículo Lattes
dc.titleFractal dynamics of heart rate variability for short termen
dc.typeArtigo
unesp.author.lattes6796970691432850
unesp.author.lattes8456421836597174
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Filosofia e Ciências, Maríliapt
unesp.departmentFonoaudiologia - FFCpt

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