Classification of cardiorespiratory fitness using the six-minute walk test in adults: Comparison with cardiopulmonary exercise testing

Background: The six-minute walk test (6MWT) distance could facilitate the assessment of cardiorespiratory fitness (CRF) in clinical practice as recommended. We aimed to develop a CRF classification using the 6MWT distance in asymptomatic adults considering the treadmill maximum oxygen uptake (V˙O2ma...

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Autores principales:	V.Z. Dourado, R.K. Nishiaka, M.S.M.P. Simões, V.T. Lauria, S.E. Tanni, I. Godoy, A.R.T. Gagliardi, M. Romiti, R.L. Arantes
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier España 2021
Materias:	Walking OV˙2max 6MWT Cardiovascular risk Reference values Diseases of the respiratory system RC705-779
Acceso en línea:	https://doaj.org/article/ace2ec79535040d3ac906d639b19de38
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spelling	oai:doaj.org-article:ace2ec79535040d3ac906d639b19de382021-11-06T04:33:37ZClassification of cardiorespiratory fitness using the six-minute walk test in adults: Comparison with cardiopulmonary exercise testing2531-043710.1016/j.pulmoe.2021.03.006https://doaj.org/article/ace2ec79535040d3ac906d639b19de382021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2531043721000829https://doaj.org/toc/2531-0437Background: The six-minute walk test (6MWT) distance could facilitate the assessment of cardiorespiratory fitness (CRF) in clinical practice as recommended. We aimed to develop a CRF classification using the 6MWT distance in asymptomatic adults considering the treadmill maximum oxygen uptake (V˙O2max) as the gold standard method. Methods: We evaluated V˙O2max and 6MWT distance in 1295 asymptomatic participants aged 18–80 years (60% women). Age- and sex-related CRF was classified based on the percentiles as very low (<5th percentile), low (5th–25th percentile), regular (26th–50th percentile), good (51st–75th percentile), excellent (76th–95th percentile), and superior (>95th percentile) for both V˙O2max and 6MWT distance. We investigated the 6MWT distance cut-off (%pred.) with the highest sensitivity and specificity for identifying each V˙O2max classification. Results: V˙O2max declined by 8.7% per decade in both men and women. The 6MWT distance declined by 9.3% per decade in women and 9.5% in men. We formulated age- and sex-related classification tables for CRF using the 6MWT distance. Moreover, the 6MWT distance (%pred.) showed excellent ability to identify very low CRF (6MWT distance ≤ 96%; AUC = 0.819) and good ability to differentiate CRF as low (6MWT distance = 97%–103%; AUC = 0.735), excellent (6MWT distance = 107%–109%; AUC = 0.715), or superior (6MWT distance > 109%; AUC = 0.790). It was not possible to differentiate between participants with regular and good CRF. Conclusion: The CRF classification by the 6MWT distance is valid in comparison with V˙O2max, especially for identifying adults with low CRF. It could be useful in clinical practice for screening and monitoring the cardiorespiratory risk in adults.V.Z. DouradoR.K. NishiakaM.S.M.P. SimõesV.T. LauriaS.E. TanniI. GodoyA.R.T. GagliardiM. RomitiR.L. ArantesElsevier EspañaarticleWalkingOV˙2max6MWTCardiovascular riskReference valuesDiseases of the respiratory systemRC705-779ENPulmonology, Vol 27, Iss 6, Pp 500-508 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Walking OV˙2max 6MWT Cardiovascular risk Reference values Diseases of the respiratory system RC705-779
spellingShingle	Walking OV˙2max 6MWT Cardiovascular risk Reference values Diseases of the respiratory system RC705-779 V.Z. Dourado R.K. Nishiaka M.S.M.P. Simões V.T. Lauria S.E. Tanni I. Godoy A.R.T. Gagliardi M. Romiti R.L. Arantes Classification of cardiorespiratory fitness using the six-minute walk test in adults: Comparison with cardiopulmonary exercise testing
description	Background: The six-minute walk test (6MWT) distance could facilitate the assessment of cardiorespiratory fitness (CRF) in clinical practice as recommended. We aimed to develop a CRF classification using the 6MWT distance in asymptomatic adults considering the treadmill maximum oxygen uptake (V˙O2max) as the gold standard method. Methods: We evaluated V˙O2max and 6MWT distance in 1295 asymptomatic participants aged 18–80 years (60% women). Age- and sex-related CRF was classified based on the percentiles as very low (<5th percentile), low (5th–25th percentile), regular (26th–50th percentile), good (51st–75th percentile), excellent (76th–95th percentile), and superior (>95th percentile) for both V˙O2max and 6MWT distance. We investigated the 6MWT distance cut-off (%pred.) with the highest sensitivity and specificity for identifying each V˙O2max classification. Results: V˙O2max declined by 8.7% per decade in both men and women. The 6MWT distance declined by 9.3% per decade in women and 9.5% in men. We formulated age- and sex-related classification tables for CRF using the 6MWT distance. Moreover, the 6MWT distance (%pred.) showed excellent ability to identify very low CRF (6MWT distance ≤ 96%; AUC = 0.819) and good ability to differentiate CRF as low (6MWT distance = 97%–103%; AUC = 0.735), excellent (6MWT distance = 107%–109%; AUC = 0.715), or superior (6MWT distance > 109%; AUC = 0.790). It was not possible to differentiate between participants with regular and good CRF. Conclusion: The CRF classification by the 6MWT distance is valid in comparison with V˙O2max, especially for identifying adults with low CRF. It could be useful in clinical practice for screening and monitoring the cardiorespiratory risk in adults.
format	article
author	V.Z. Dourado R.K. Nishiaka M.S.M.P. Simões V.T. Lauria S.E. Tanni I. Godoy A.R.T. Gagliardi M. Romiti R.L. Arantes
author_facet	V.Z. Dourado R.K. Nishiaka M.S.M.P. Simões V.T. Lauria S.E. Tanni I. Godoy A.R.T. Gagliardi M. Romiti R.L. Arantes
author_sort	V.Z. Dourado
title	Classification of cardiorespiratory fitness using the six-minute walk test in adults: Comparison with cardiopulmonary exercise testing
title_short	Classification of cardiorespiratory fitness using the six-minute walk test in adults: Comparison with cardiopulmonary exercise testing
title_full	Classification of cardiorespiratory fitness using the six-minute walk test in adults: Comparison with cardiopulmonary exercise testing
title_fullStr	Classification of cardiorespiratory fitness using the six-minute walk test in adults: Comparison with cardiopulmonary exercise testing
title_full_unstemmed	Classification of cardiorespiratory fitness using the six-minute walk test in adults: Comparison with cardiopulmonary exercise testing
title_sort	classification of cardiorespiratory fitness using the six-minute walk test in adults: comparison with cardiopulmonary exercise testing
publisher	Elsevier España
publishDate	2021
url	https://doaj.org/article/ace2ec79535040d3ac906d639b19de38
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Classification of cardiorespiratory fitness using the six-minute walk test in adults: Comparison with cardiopulmonary exercise testing

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