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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/46737
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dc.creatorBreno Quintella Farahpt_BR
dc.creatorDiego Giulliano Destro Christofaropt_BR
dc.creatorBruno Remígio Cavalcantept_BR
dc.creatorAluísio Andrade Limapt_BR
dc.creatorAntônio Henrique Germano Soarespt_BR
dc.creatorLuiz Carlos Marques Vanderleipt_BR
dc.creatorFernanda de Córdoba Lanzapt_BR
dc.creatorRaphael Mendes Ritti Diaspt_BR
dc.date.accessioned2022-10-31T14:18:49Z-
dc.date.available2022-10-31T14:18:49Z-
dc.date.issued2018-
dc.citation.volume39pt_BR
dc.citation.issue7pt_BR
dc.citation.spage1397pt_BR
dc.citation.epage1403pt_BR
dc.identifier.doihttps://doi.org/10.1007/s00246-018-1909-5pt_BR
dc.identifier.issn1432-1971pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/46737-
dc.description.resumoA low heart rate variability (HRV) has been associated with cardiovascular risk factors in adolescents. However, no cut-off points are known for HRV parameters in this age group, making it difficult to use in clinical practice. Thus, the aims of the current study were to establish cutoffs of HRV parameters and to examine their association with cardiovascular risk in Brazilian adolescents male. For this reason, this cross-sectional study included 1152 adolescent boys (16.6 ± 1.2 years old). HRV measures of time (SD of all RR intervals, root mean square of the squared differences between adjacent normal RR intervals, and the percentage of adjacent intervals over 50 ms), frequency domains [low (LF) and high (HF) frequency], and Poincaré plot (SD1, SD2 and SD1/SD2 ratio) were assessed. Cardiovascular risk was assessed by sum of abdominal obesity, high blood pressure, overweight, and low physical activity level. The proposed cutoffs showed moderate to high sensitivity, specificity, and area under curve values (p < 0.05). HRV frequency parameters were statistically superior when compared to time-domain and Poincaré plot parameters. The binary logistic regression analysis indicated that all proposed HRV cutoffs were independently associated with a clustering of cardiovascular risk factors, with greater magnitude of HF and SD1/SD2 ratio (two or more risk factors: OR = 3.59 and 95% CI 1.76–7.34). In conclusion, proposed HRV cutoffs have moderate to high sensitivity in detecting of the cardiovascular risk factor and HRV frequency-domain were better discriminants of cardiovascular risk than time-domain and Poincaré plot parameters.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentEEF - DEPARTAMENTO DE FISIOTERAPIApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofPediatric Cardiologypt_BR
dc.rightsAcesso Restritopt_BR
dc.subjectAutonomic nervous systempt_BR
dc.subjectHeart ratept_BR
dc.subjectAdolescentspt_BR
dc.subjectRisk factorspt_BR
dc.subjectCardiovascular diseasept_BR
dc.subject.otherSistema nervoso autônomopt_BR
dc.subject.otherFrequência cardíacapt_BR
dc.subject.otherAdolescentespt_BR
dc.subject.otherFatores de riscopt_BR
dc.subject.otherDoenças cardiovascularespt_BR
dc.titleCutoffs of short-term heart rate variability parameters in brazilian adolescents malept_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://link.springer.com/article/10.1007/s00246-018-1909-5pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-2286-5892pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-9917-9992pt_BR
dc.identifier.orcidhttp://orcid.org/0000-0002-6628-2894pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-8559-7752pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-1891-3153pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-4748-6947pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-7883-6746pt_BR
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