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Reliability and validity of six-minute step test in patients with heart failure

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dc.contributor.author Marinho, Renan Shida
dc.contributor.author Jürgensen, Soraia Pilon
dc.contributor.author Arcuri, Juliano Ferreira
dc.contributor.author Goulart, Cássia da Luz
dc.contributor.author Santos, Polliana Batista dos
dc.contributor.author Roscani, Meliza Goi
dc.contributor.author Mendes, Renata Gonçalves
dc.contributor.author Oliveira, Cláudio Ricardo de
dc.contributor.author Caruso, Flávia Rossi
dc.contributor.author Silva, Audrey Borghi
dc.date.accessioned 2022-02-09T00:18:55Z
dc.date.available 2022-02-09T00:18:55Z
dc.date.issued 2021-07-16
dc.identifier https://doi.org/10.1590/1414-431X2020e10514 por
dc.identifier.citation MARINHO, Renan Shida; JÜRGENSEN, Soraia P.; ARCURI, Juliano Ferreira; GOULART, Cássia da Luz; SANTOS, Polliana Batista dos; ROSCANI, Meliza Goi; MENDES, Renata Gonçalves; OLIVEIRA, Cláudio R.; CARUSO, Flávia Rossi; BORGHI-SILVA, Audrey. Reliability and validity of six-minute step test in patients with heart failure. Repositório de Dados da UFSCar, 2021. Dataset. Disponível em: https://repositorio.ufscar.br/handle/ufscar/15563. *
dc.identifier.uri https://repositorio.ufscar.br/handle/ufscar/15563
dc.description Exercise intolerance is the hallmark consequence of advanced chronic heart failure (HF). The six-minute step test (6MST) has been considered an option for the six-minute walk test because it is safe, inexpensive, and can be applied in small places. However, its reliability and concurrent validity has still not been investigated in participants with HF with reduced ejection fraction (HFrEF). Clinically stable HFrEF participants were included. Reliability and error measurement were calculated by comparing the first with the second 6MST result. Forty-eight hours after participants underwent the 6MST, they were invited to perform a cardiopulmonary exercise test (CPET) on a cycle ergometer. Concurrent validity was assessed by correlation between number of steps and peak oxygen uptake (V̇O2 peak) at CPET. Twenty-seven participants with HFrEF (60±8 years old and left ventricle ejection fraction of 41±6%) undertook a mean of 94±30 steps in the 6MST. Intra-rater reliability was excellent for 6MST (ICC=0.9), with mean error of 4.85 steps and superior and inferior limits of agreement of 30.6 and -20.9 steps, respectively. In addition, strong correlations between number of steps and CPET workload (r=0.76, P<0.01) and peak V̇O2 (r=0.71, P<0.01) were observed. From simple linear regression the following predictive equations were obtained with 6MST results: V̇O2 peak (mL/min) = 350.22 + (7.333 × number of steps), with R2=0.51, and peak workload (W) = 4.044 + (0.772 × number of steps), with R2=0.58. The 6MST was a reliable and valid tool to assess functional capacity in HFrEF participants and may moderately predict peak workload and oxygen uptake of a CPET. eng
dc.description.sponsorship Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) por
dc.description.sponsorship Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) por
dc.language.iso eng eng
dc.publisher Universidade Federal de São Carlos por
dc.rights Attribution-NonCommercial-NoDerivs 3.0 Brazil *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/br/ *
dc.subject Exercise tolerance eng
dc.subject Heart failure eng
dc.subject Functional capacity eng
dc.subject Six-minute step test eng
dc.subject Cardiopulmonary exercise testing eng
dc.subject Rehabilitation eng
dc.title Reliability and validity of six-minute step test in patients with heart failure eng
dc.type Dataset eng
dc.description.sponsorshipId 2015/26501-1 por
dc.description.sponsorshipId Código de Financiamento 001 por


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