Reliability of heart rate variability analysis during submaximal exercise in subjects aged 60 years and older

Background: Assessment of heart rate variability (HRV) during the 6-min walk test (6MWT) may be useful for quantifying the effects of interventions on the cardiovascular system.Objective: To evaluate the reliability of HRV analysis during 6MWT in older adults.Methods: Thirty-eight participants aged...

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Principais autores: Corrêa, Fernanda Rocha, Guerra, Ricardo Luís Fernandes, Dourado, Victor Zuniga
Formato: Online
Idioma:eng
Publicado em: UFRN
Endereço do item:https://periodicos.ufrn.br/revistadefisioterapia/article/view/3597
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spelling oai:periodicos.ufrn.br:article-35972013-07-31T00:54:27Z Reliability of heart rate variability analysis during submaximal exercise in subjects aged 60 years and older Corrêa, Fernanda Rocha Guerra, Ricardo Luís Fernandes Dourado, Victor Zuniga Walking Heart rate variability Exercise Six-minute walk test Reliability Background: Assessment of heart rate variability (HRV) during the 6-min walk test (6MWT) may be useful for quantifying the effects of interventions on the cardiovascular system.Objective: To evaluate the reliability of HRV analysis during 6MWT in older adults.Methods: Thirty-eight participants aged 60 years and older (23 females) performed two 6MWTs at least 30-min apart. The RR intervals of heartbeats were quantified throughout the 6MWTs and the last 2-min were considered for analysis. The square root of the mean square successive difference of RR intervals (RMSSD) and instantaneous beat-to-beat variability (SD1) were the indices used. We compared means, applied intraclass correlations (ICC), and plotted differences in the Bland and Altman approach of these indices.Results: We found no significant differences in HRV or total distance walked between the first and second tests. The reliability of RMSSD (0.904; 0.815 – 0.950) and SD1 (0.902; 0.812 – 0.949) was excellent considering ICC values and a 95% confidence interval. The agreement of these indices was also acceptable for Bland and Altman plots using logarithms.Conclusions: The reliability of some HRV indices during the 6MWT was acceptable. This evaluation might be useful in quantifying the effects of various interventions on the autonomic modulation of the heart. UFRN 2013-06-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artigo avaliado pelos Pares application/pdf https://periodicos.ufrn.br/revistadefisioterapia/article/view/3597 Journal of Respiratory and CardioVascular Physical Therapy; Vol. 1 No. 2 (2012); 37-43 Revista de Fisioterapia Respiratória e CardioVascular; v. 1 n. 2 (2012); 37-43 2238-4677 eng https://periodicos.ufrn.br/revistadefisioterapia/article/view/3597/2883 Copyright (c) 2014 Revista de Fisioterapia Respiratória e CardioVascular
institution Periódicos UFRN
collection Portal de Pediódicos Eletrônicos da UFRN
language eng
format Online
author Corrêa, Fernanda Rocha
Guerra, Ricardo Luís Fernandes
Dourado, Victor Zuniga
spellingShingle Corrêa, Fernanda Rocha
Guerra, Ricardo Luís Fernandes
Dourado, Victor Zuniga
Reliability of heart rate variability analysis during submaximal exercise in subjects aged 60 years and older
author_facet Corrêa, Fernanda Rocha
Guerra, Ricardo Luís Fernandes
Dourado, Victor Zuniga
author_sort Corrêa, Fernanda Rocha
title Reliability of heart rate variability analysis during submaximal exercise in subjects aged 60 years and older
title_short Reliability of heart rate variability analysis during submaximal exercise in subjects aged 60 years and older
title_full Reliability of heart rate variability analysis during submaximal exercise in subjects aged 60 years and older
title_fullStr Reliability of heart rate variability analysis during submaximal exercise in subjects aged 60 years and older
title_full_unstemmed Reliability of heart rate variability analysis during submaximal exercise in subjects aged 60 years and older
title_sort reliability of heart rate variability analysis during submaximal exercise in subjects aged 60 years and older
description Background: Assessment of heart rate variability (HRV) during the 6-min walk test (6MWT) may be useful for quantifying the effects of interventions on the cardiovascular system.Objective: To evaluate the reliability of HRV analysis during 6MWT in older adults.Methods: Thirty-eight participants aged 60 years and older (23 females) performed two 6MWTs at least 30-min apart. The RR intervals of heartbeats were quantified throughout the 6MWTs and the last 2-min were considered for analysis. The square root of the mean square successive difference of RR intervals (RMSSD) and instantaneous beat-to-beat variability (SD1) were the indices used. We compared means, applied intraclass correlations (ICC), and plotted differences in the Bland and Altman approach of these indices.Results: We found no significant differences in HRV or total distance walked between the first and second tests. The reliability of RMSSD (0.904; 0.815 – 0.950) and SD1 (0.902; 0.812 – 0.949) was excellent considering ICC values and a 95% confidence interval. The agreement of these indices was also acceptable for Bland and Altman plots using logarithms.Conclusions: The reliability of some HRV indices during the 6MWT was acceptable. This evaluation might be useful in quantifying the effects of various interventions on the autonomic modulation of the heart.
publisher UFRN
publishDate 2013
url https://periodicos.ufrn.br/revistadefisioterapia/article/view/3597
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AT guerraricardoluisfernandes reliabilityofheartratevariabilityanalysisduringsubmaximalexerciseinsubjectsaged60yearsandolder
AT douradovictorzuniga reliabilityofheartratevariabilityanalysisduringsubmaximalexerciseinsubjectsaged60yearsandolder
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