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

Autor(es)

Dourado, V. Z. ^{[1, 2]} ; Nishiaka, R. K. ^[1] ; Simoes, M. S. M. P. ^[1] ; Lauria, V. T. ^[1] ; Tanni, S. E. ^[3] ; Godoy, I ^[3] ; Gagliardi, A. R. T. ^[4] ; Romiti, M. ^[4] ; Arantes, R. L. ^[4]

Afiliação do(s) autor(es)

^[1] Fed Univ Sao Paulo UNIFESP, Dept Human Movement Sci, Lab Epidemiol & Human Movement EPIMOV, Santos, SP - Brazil

^[2] Harvard TH Chan Sch Publ Hlth, Lown Scholars Cardiovasc Hlth Program, Boston, MA - USA

^[3] Sao Paulo State Univ UNESP, Med Sch, Dept Internal Med, Pulmonol Div, Botucatu, SP - Brazil

^[4] Angiocorpore Inst Cardiovasc Med, Santos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: PULMONOLOGY; v. 27, n. 6, p. 500-508, NOV-DEC 2021.
• Citações Web of Science: 0

Resumo

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 (VO2max) as the gold standard method. Methods: We evaluated VO2max 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 VO2max and 6MWT distance. We investigated the 6MWT distance cut-off (%pred.) with the highest sensitivity and specificity for identifying each VO2max classification. Results: VO2max 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 VO2max, especially for identifying adults with low CRF. It could be useful in clinical practice for screening and monitoring the cardiorespiratory risk in adults. (C) 2021 Sociedade Portuguesa de Pneumologia. Published by Elsevier Espan tilde a, S.L.U. (AU)

• Processo FAPESP: 11/07282-6 - Nível de atividade e aptidão física e sua associação com o declínio da função pulmonar em adultos do município de Santos, Brasil
• Beneficiário: Victor Zuniga Dourado
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores
• Processo FAPESP: 18/11817-1 - Utilização de um aplicativo para smartphone combinado com beacons e gamificação para aumentar o nível de atividade física de adultos e idosos: ensaio clínico randomizado com alocações sequenciais múltiplas
• Beneficiário: Maria Do Socorro Morais Pereira Simões
• Modalidade de apoio: Bolsas no Brasil - Programa Capacitação - Treinamento Técnico
• Processo FAPESP: 18/21536-0 - Utilização de um aplicativo para smartphone combinado com beacons e gamificação para aumentar o nível de atividade física de adultos e idosos: ensaio clínico randomizado com alocações sequenciais múltiplas
• Beneficiário: Maria Do Socorro Morais Pereira Simões
• Modalidade de apoio: Bolsas no Brasil - Doutorado