Fractal correlation property of heart rate variability in chronic obstructive pulmonary disease

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dc.contributor.authorCarvalho, Tatiana D. [UNESP]
dc.contributor.authorPastre, Carlos Marcelo [UNESP]
dc.contributor.authorde Godoy, Moacir Fernandes
dc.contributor.authorFereira, Celso
dc.contributor.authorPitta, Fabio O. [UNESP]
dc.contributor.authorde Abreu, Luiz Carlos
dc.contributor.authorCipulo Ramos, Ercy Mara [UNESP]
dc.contributor.authorValenti, Vitor E.
dc.contributor.authorMarques Vanderlei, Luiz Carlos [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.contributor.institutionFaculdade de Medicina de São José do Rio Preto (FAMERP)
dc.contributor.institutionUniversidade Estadual de Londrina (UEL)
dc.contributor.institutionFac Med ABC
dc.date.accessioned2014-05-20T13:23:25Z
dc.date.available2014-05-20T13:23:25Z
dc.date.issued2011-01-01
dc.description.abstractBackground: It was reported that autonomic nervous system function is altered in subjects with chronic obstructive pulmonary disease (COPD). We evaluated short-and long-term fractal exponents of heart rate variability (HRV) in COPD subjects.Patients and methods: We analyzed data from 30 volunteers, who were divided into two groups according to spirometric values: COPD (n = 15) and control (n = 15). For analysis of HRV indices, HRV was recorded beat by beat with the volunteers in the supine position for 30 minutes. We analyzed the linear indices in the time (SDNN [standard deviation of normal to normal] and RMSSD [root-mean square of differences]) and frequency domains (low frequency [LF], high frequency [HF], and LF/HF), and the short-and long-term fractal exponents were obtained by detrended fluctuation analysis. We considered P < 0.05 to be a significant difference.Results: COPD patients presented reduced levels of all linear exponents and decreased short-term fractal exponent (alpha-1: 0.899 +/- 0.18 versus 1.025 +/- 0.09, P = 0.026). There was no significant difference between COPD and control groups in alpha-2 and alpha-1/alpha-2 ratio.Conclusion: COPD subjects present reduced short-term fractal correlation properties of HRV, which indicates that this index can be used for risk stratification, assessment of systemic disease manifestations, and therapeutic procedures to monitor those patients.en
dc.description.affiliationUniv Estadual Paulista, Fac Ciencias & Tecnol, Dept Fisioterapia, São Paulo, Brazil
dc.description.affiliationUniv Fed São Paulo, Disciplina Cardiol, Dept Med, São Paulo, Brazil
dc.description.affiliationFaculdade de Medicina de São José do Rio Preto (FAMERP), Dept Cardiol & Cirurgia Cardiovasc, São Paulo, Brazil
dc.description.affiliationUniversidade Estadual de Londrina (UEL), Lab Pesquisa Fisioterapia Pulm, Dept Fisioterapia, Londrina, Brazil
dc.description.affiliationFac Med ABC, Dept Morfol & Fisiol, Santo Andre, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Fac Ciencias & Tecnol, Dept Fisioterapia, São Paulo, Brazil
dc.description.sponsorshipFundação para o Desenvolvimento da UNESP (FUNDUNESP)
dc.description.sponsorshipIdFUNDUNESP: 00704/08-DFP
dc.format.extent23-28
dc.identifierhttp://dx.doi.org/10.2147/COPD.S15099
dc.identifier.citationInternational Journal of Chronic Obstructive Pulmonary Disease. Albany: Dove Medical Press Ltd, v. 6, p. 23-28, 2011.
dc.identifier.doi10.2147/COPD.S15099
dc.identifier.fileWOS000208709800003.pdf
dc.identifier.issn1176-9106
dc.identifier.lattes2761396544058606
dc.identifier.lattes9801061258149563
dc.identifier.lattes5860525135106995
dc.identifier.urihttp://hdl.handle.net/11449/7063
dc.identifier.wosWOS:000208709800003
dc.language.isoeng
dc.publisherDove Medical Press Ltd
dc.relation.ispartofInternational Journal of Chronic Obstructive Pulmonary Disease
dc.relation.ispartofsjr1,395
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectpulmonary diseaseen
dc.subjectchronic obstructiveen
dc.subjectheart rateen
dc.subjectnervous systemen
dc.subjectcardiologyen
dc.titleFractal correlation property of heart rate variability in chronic obstructive pulmonary diseaseen
dc.typeArtigo
dcterms.licensehttp://www.dovepress.com/author_guidelines.php
dcterms.rightsHolderDove Medical Press Ltd
unesp.author.lattes2761396544058606[2]
unesp.author.lattes9801061258149563
unesp.author.lattes5860525135106995
unesp.author.orcid0000-0002-1891-3153[9]
unesp.author.orcid0000-0002-0213-6679[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências e Tecnologia, Presidente Prudentept

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Artigos - Fisioterapia - FCT