Nonlinear dynamics of heart rate during slow breathing exercise

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dc.contributor.authorPorto, Andrey A.
dc.contributor.authorTavares, Bruna S. [UNESP]
dc.contributor.authorVidigal, Giovanna [UNESP]
dc.contributor.authorGarner, David M.
dc.contributor.authorRaimundo, Rodrigo D.
dc.contributor.authorde Abreu, Luiz Carlos
dc.contributor.authorBocalini, Danilo
dc.contributor.authorValenti, Vitor E. [UNESP]
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionOxford Brookes University
dc.contributor.institutionABC School of Medicine
dc.contributor.institutionSão Judas Tadeu University
dc.date.accessioned2018-12-11T16:52:50Z
dc.date.available2018-12-11T16:52:50Z
dc.date.issued2018-04-01
dc.description.abstractThe acute effects of slow breathing exercises on the complex behaviour of heart rate regulation were investigated. We evaluated 21 healthy male volunteers aged between 18 and 30 years old. Heart rate variability was investigated 10 minutes during spontaneous breathing and five minutes during slower breathing exercises (6 cycles/min). The consequent nonlinear metrics of heart rate variability were applied: Symbolic analysis, Shannon Entropy, Rényi Entropy, Tsallis Entropy, Approximate Entropy, Sample Entropy and Detrended Fluctuation Analysis. The symbolic exhibited an increase in two like variation and decrease in two unlike variation. Detrended Fluctuation Analysis was significantly higher during slow breathing exercises (0.6454±0.201 vs. 0.3949±0.205; p=0.0003). Approximate entropy was significantly lower during slow breathing exercises (0.8620±0.121 vs. 0.7677±0.134; p=0.0221). No significant changes were detected for Shannon Entropy, Rényi Entropy, Tsallis Entropy and Sample Entropy. In conclusion, slow breathing exercises decrease nonlinear behaviour of heart rate dynamics in healthy young males followed by reduced vagal control of heart rate dynamics. We propose that the linear behaviour of respiratory patterns influences the complexity of HRV.en
dc.description.affiliationDisciplina de Cardiologia Departamento de Medicina UNIFESP
dc.description.affiliationCentro de Estudos do Sistema Nervoso Autônomo (CESNA) FaculdadeCiências e Tecnologia UNESP
dc.description.affiliationCardiorespiratory Research Group Department of Biological and Medical Sciences Faculty of Health and Life Sciences Oxford Brookes University, Gipsy Lane
dc.description.affiliationDesign of Studies and Scientific Writing Laboratory ABC School of Medicine
dc.description.affiliationTranslational Physiology Laboratory Department of Physical Education and Aging Sciences São Judas Tadeu University
dc.description.affiliationUnespCentro de Estudos do Sistema Nervoso Autônomo (CESNA) FaculdadeCiências e Tecnologia UNESP
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.format.extent160-169
dc.identifier.citationIndian Journal of Physiology and Pharmacology, v. 62, n. 2, p. 160-169, 2018.
dc.identifier.issn0019-5499
dc.identifier.scopus2-s2.0-85045457109
dc.identifier.urihttp://hdl.handle.net/11449/170896
dc.language.isoeng
dc.relation.ispartofIndian Journal of Physiology and Pharmacology
dc.relation.ispartofsjr0,205
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.titleNonlinear dynamics of heart rate during slow breathing exerciseen
dc.typeArtigo

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