Fractal correlation property of heart rate variability in response to the postural change maneuver in healthy women

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dc.contributor.authorSousa, Ana CecÍlia Amorim De
dc.contributor.authorCisternas, Raul
dc.contributor.authorAbreu, Luiz Carlos de
dc.contributor.authorRoque, Adriano L. [UNESP]
dc.contributor.authorMonteiro, Carlos Bandeira de Mello
dc.contributor.authorAdami, Fernando
dc.contributor.authorVanderlei, Luiz Carlos Marques [UNESP]
dc.contributor.authorSousa, Fernando Henrique [UNESP]
dc.contributor.authorFerreira, Lucas L. [UNESP]
dc.contributor.authorValenti, Vitor Engrácia [UNESP]
dc.contributor.institutionFaculdade de Medicina do ABC (FMABC)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2015-02-24T13:58:07Z
dc.date.available2015-02-24T13:58:07Z
dc.date.issued2014
dc.description.abstractBackground: We evaluated the effects of the PCM on the fractal analysis of the HRV in healthy women Method: We evaluated healthy women between 18 and 30 years old. HRV was analyzed in the time (SDNN, RMSSD, NN50 and pNN50) and frequency (LF, HF and LF/HF ratio) domains as well as short and long-term fractal exponents (alpha-1 and alpha-2) of the detrended fluctuation analysis (DFA). HRV was recorded at rest for ten minutes at seated rest and then the women quickly stood up from a seated position in up to three seconds and remained standing for 15 minutes. HRV was recorded at the following time: rest, 0–5 min, 5–10 min and 10–15 min during standing. Results: We observed decrease (p < 0.05) in the time-domain indices of HRV between seated and 10–15 minutes after the volunteer stood up. The LF (ms2) and HF (ms2) indices were also reduced (p < 0.05) at 10–15 minutes after the volunteer stood up compared to seated while the LF (nu) was increased at 5–10 min and 10–15 min (p < 0.05). The short-term alpha-1 exponent was increased (p < 0.05) at all moments investigated compared to seated. Increase in the properties of short-term fractal correlations of heart rate dynamics accompanied by a decrease in the parasympathetic modulation and global HRV was observed in response to the postural change maneuver. Conclusion: We suggest that fractal analysis of HRV is more sensitive than frequency and time-domain analysis of HRV during the postural change maneuver.en
dc.description.affiliationUnespDepartamento de Fisioterapia, Faculdade de Filosofia e Ciências, Universidade Estadual Paulista, Marília,UNESP, Av. Higyno Muzzi Filho, 737, Marília, SP 17.525-900, Brazil
dc.description.affiliationUnespPrograma de Pós-Graduação em Fisioterapia, Faculdade de Ciências e Tecnologia, Universidade Estadual Paulista, UNESP, R. Roberto Simonsen, 305, Presidente Prudente, SP 19060-900, Brazil
dc.description.affiliationUnespUniversidade Estadual Paulista, UNESP, Av. Eng. Luiz Edmundo Carrijo Coube, 14-01, Bauru, SP 17033-360, Brazil
dc.format.extent1-7
dc.identifierhttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC4030044/
dc.identifier.citationInternational Archives of Medicine, v. 7, p. 25, 2014.
dc.identifier.fileISSN17557682-2014-07-25-01-07.pdf
dc.identifier.issn1755-7682
dc.identifier.lattes6796970691432850
dc.identifier.lattes8456421836597174
dc.identifier.lattes5860525135106995
dc.identifier.lattes4653879006071222
dc.identifier.urihttp://hdl.handle.net/11449/115489
dc.language.isoeng
dc.relation.ispartofInternational Archives of Medicine
dc.relation.ispartofsjr0,237
dc.rights.accessRightsAcesso aberto
dc.sourceCurrículo Lattes
dc.titleFractal correlation property of heart rate variability in response to the postural change maneuver in healthy womenen
dc.typeArtigo
unesp.author.lattes6796970691432850
unesp.author.lattes8456421836597174
unesp.author.lattes5860525135106995
unesp.author.lattes4653879006071222
unesp.author.orcid0000-0002-1891-3153[7]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Filosofia e Ciências, Maríliapt
unesp.departmentFonoaudiologia - FFCpt

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