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Salles Albuquerque1 V, Dal Corso2 S, Pereira do Amaral2 D, Medina Dutra de Oliveira1 T, Fonseca Souza3 G, Naara Silva de Souza3 R, Karolyn Menezes Nogueira3 A, Dal Lago4 P, Luísa Rocha Dadalt4 M, Faraco Correa4 I, França Bernardelli Cipriano5 G, Maria Ferreira Silva5 F, Rodrigues Britto6 R, José1 A, Malaguti1 C. Normative values and reference equation for the six-minute step test to evaluate functional exercise capacity: a multicenter study. J Bras Pneumol 2022. [PMCID: PMC9496468 DOI: 10.36416/1806-3756/e20210511] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Objective: To establish normative values and a reference equation for the number of steps climbed during the six-minute step test (6MST) in healthy adults, and to assess the reliability of the test and of the equation. Methods: This was a multicenter cross-sectional study involving 468 healthy volunteers (age range: 18-79 years) recruited from the general community in six research laboratories across different regions of Brazil, which is a country with continental dimensions. The 6MST was performed twice (30-min interval), and clinical, demographic, and functional variables were evaluated. An independent sample of 24 volunteers was evaluated to test the reference equation a posteriori. Results: The number of steps had excellent test-retest reliability (intraclass correlation coefficient = 0.96 [95%CI: 0.95-0.97]), and the mean number of steps was 175 ± 45, the number being 14% greater in males than in females. The best performance on the test was correlated with age (r = -0.60), sex (r = 0.28), weight (r = 0.13), height (r = 0.41), BMI (r = -0.22), waist circumference (r = -0.22), thigh circumference (r = 0.15), FVC (r = 0.54), and physical activity level (r = 0.17; p < 0.05 for all). In the regression analysis, age, sex, height, and weight explained 42% of the variability of the 6MST. Normative values were established for the 6MST according to age and sex. There was no difference between the 6MST values from the independent sample and its predicted values (157 ± 29 steps vs. 161 ± 25 steps; p = 0.47; 97% of predicted values). Conclusions: The normative values and the reference equation for the 6MST in this study seem adequate to accurately predict the physical functional performance in adults in Brazil.
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Affiliation(s)
- Vanessa Salles Albuquerque1
- 1. Programa de Pós-Graduação em Ciências de Reabilitação e Desempenho Físico-Funcional, Universidade Federal de Juiz de Fora – UFJF – Juiz de Fora (MG) Brasil
| | | | - Daniel Pereira do Amaral2
- 2. Programa de Pós-Graduação em Ciências de Reabilitação, Universidade Nove de Julho – UNINOVE – São Paulo (SP) Brasil
| | - Túlio Medina Dutra de Oliveira1
- 1. Programa de Pós-Graduação em Ciências de Reabilitação e Desempenho Físico-Funcional, Universidade Federal de Juiz de Fora – UFJF – Juiz de Fora (MG) Brasil
| | - Gerson Fonseca Souza3
- 3. Departamento de Fisioterapia, Universidade Federal do Rio Grande do Norte – UFRN – Natal (RN) Brasil
| | | | | | - Pedro Dal Lago4
- 4. Programa de Pós-Graduação em Ciências de Reabilitação, Universidade Federal de Ciências da Saúde de Porto Alegre – UFCSPA – Porto Alegre (RS) Brasil
| | - Maria Luísa Rocha Dadalt4
- 4. Programa de Pós-Graduação em Ciências de Reabilitação, Universidade Federal de Ciências da Saúde de Porto Alegre – UFCSPA – Porto Alegre (RS) Brasil
| | - Isadora Faraco Correa4
- 4. Programa de Pós-Graduação em Ciências de Reabilitação, Universidade Federal de Ciências da Saúde de Porto Alegre – UFCSPA – Porto Alegre (RS) Brasil
| | | | - Fabíola Maria Ferreira Silva5
- 5. Programa de Pós-Graduação em Ciências e Tecnologias em Saúde. Universidade de Brasília – UnB – Brasília (DF) Brasil
| | - Raquel Rodrigues Britto6
- 6. Programa de Pós-Graduação em Ciências de Reabilitação, Universidade Federal de Minas Gerais –UFMG – Belo Horizonte (MG) Brasil
| | - Anderson José1
- 1. Programa de Pós-Graduação em Ciências de Reabilitação e Desempenho Físico-Funcional, Universidade Federal de Juiz de Fora – UFJF – Juiz de Fora (MG) Brasil
| | - Carla Malaguti1
- 1. Programa de Pós-Graduação em Ciências de Reabilitação e Desempenho Físico-Funcional, Universidade Federal de Juiz de Fora – UFJF – Juiz de Fora (MG) Brasil
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Malaguti C, Mourão-Junior CA, Chebli JM. Reply to "Six-minute walking test performance is associated with survival in cirrhotic patients" to the editor. World J Hepatol 2022; 14:1047-1049. [PMID: 35721292 PMCID: PMC9157707 DOI: 10.4254/wjh.v14.i5.1047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 03/21/2022] [Accepted: 04/24/2022] [Indexed: 02/06/2023] Open
Abstract
Use of the six-minute walk test has been proposed as a prognostic marker in liver cirrhosis. In the Letter to the Editor presented here, the authors highlight some important points, which were raised after the article was published in the November issue of the World Journal of Hepatology.
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Affiliation(s)
- Carla Malaguti
- Departament of Cardiorespiratory and Skeletal Muscle, Universidade Federal de Juiz de Fora, Juiz de Fora 36036-634, Minas Gerais, Brazil.
| | | | - Júlio Maria Chebli
- Department of Medicine, Universidade Federal de Juiz de Fora, Juiz de Fora 36036-634, Minas Gerais, Brazil
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Reply to "Six-minute walking test performance is associated with survival in cirrhotic patients" to the editor. World J Hepatol 2022. [DOI: 10.4254/wjh.v14.i5.1048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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Dourado VZ, Nishiaka RK, Simões MSMP, Lauria VT, Tanni SE, Godoy I, Gagliardi ART, Romiti M, Arantes RL. Classification of cardiorespiratory fitness using the six-minute walk test in adults: Comparison with cardiopulmonary exercise testing. Pulmonology 2021; 27:500-508. [PMID: 33958319 DOI: 10.1016/j.pulmoe.2021.03.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 03/17/2021] [Accepted: 03/18/2021] [Indexed: 11/28/2022] Open
Abstract
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.
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Affiliation(s)
- V Z Dourado
- Department of Human Movement Sciences (Laboratory of Epidemiology and Human Movement - EPIMOV), Federal University of São Paulo (UNIFESP), Santos, São Paulo, Brazil; Lown Scholars in Cardiovascular Health Program, Harvard T.H. Chan School of Public Health, Boston, MA, United States.
| | - R K Nishiaka
- Department of Human Movement Sciences (Laboratory of Epidemiology and Human Movement - EPIMOV), Federal University of São Paulo (UNIFESP), Santos, São Paulo, Brazil
| | - M S M P Simões
- Department of Human Movement Sciences (Laboratory of Epidemiology and Human Movement - EPIMOV), Federal University of São Paulo (UNIFESP), Santos, São Paulo, Brazil
| | - V T Lauria
- Department of Human Movement Sciences (Laboratory of Epidemiology and Human Movement - EPIMOV), Federal University of São Paulo (UNIFESP), Santos, São Paulo, Brazil
| | - S E Tanni
- Lown Scholars in Cardiovascular Health Program, Harvard T.H. Chan School of Public Health, Boston, MA, United States
| | - I Godoy
- Lown Scholars in Cardiovascular Health Program, Harvard T.H. Chan School of Public Health, Boston, MA, United States
| | - A R T Gagliardi
- Department of Internal Medicine (Pulmonology Division), São Paulo State University (UNESP), Medical School, Botucatu, São Paulo, Brazil; Angiocorpore Institute of Cardiovascular Medicine, Santos, São Paulo, Brazil
| | - M Romiti
- Department of Internal Medicine (Pulmonology Division), São Paulo State University (UNESP), Medical School, Botucatu, São Paulo, Brazil; Angiocorpore Institute of Cardiovascular Medicine, Santos, São Paulo, Brazil
| | - R L Arantes
- Department of Internal Medicine (Pulmonology Division), São Paulo State University (UNESP), Medical School, Botucatu, São Paulo, Brazil; Angiocorpore Institute of Cardiovascular Medicine, Santos, São Paulo, Brazil
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Vasconcelos NNLD, Martins NDS, Pereira EDB, Almeida ASA, Mesquita R. Aplicabilidade das equações de referência brasileiras para o teste de caminhada de 6 minutos em pacientes com câncer de pulmão. FISIOTERAPIA E PESQUISA 2020. [DOI: 10.1590/1809-2950/20027427042020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
RESUMO O objetivo deste estudo foi verificar o impacto da utilização de diferentes equações de referência brasileiras para a distância percorrida no teste da caminhada de 6 minutos (TC6min) na avaliação da capacidade funcional de exercício em pacientes com câncer de pulmão (CP). Este estudo transversal incluiu 48 pacientes com CP (idade média de 60±12 anos). Os participantes foram submetidos à avaliação de características sociodemográficas, clínicas e da sua capacidade funcional de exercício com o TC6min, seguindo recomendações internacionais. Foram analisadas cinco equações. A distância percorrida pelos pacientes (503±102 metros) foi relativamente próxima às distâncias previstas pelas equações de referência (82-94% do previsto), embora estatisticamente inferior (p<0,05 para todas).
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Almeida VP, Ferreira AS, Guimarães FS, Papathanasiou J, Lopes AJ. Predictive models for the six-minute walk test considering the walking course and physical activity level. Eur J Phys Rehabil Med 2020; 55:824-833. [PMID: 31189305 DOI: 10.23736/s1973-9087.19.05687-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Vívian P Almeida
- Rehabilitation Sciences Post-Graduate Program, Augusto Motta University Center (UNISUAM), Rio de Janeiro, Brazil
| | - Arthur S Ferreira
- Rehabilitation Sciences Post-Graduate Program, Augusto Motta University Center (UNISUAM), Rio de Janeiro, Brazil
| | - Fernando S Guimarães
- Rehabilitation Sciences Post-Graduate Program, Augusto Motta University Center (UNISUAM), Rio de Janeiro, Brazil
- Department of Physical Therapy, School of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Jannis Papathanasiou
- Department of Medical Imaging, Allergology and Physiotherapy, Faculty of Dental Medicine, Medical University of Plovdiv, Plovdiv, Bulgaria
- Department of Kinesitherapy, Faculty of Public Health, Medical University of Sofia, Sofia, Bulgaria
| | - Agnaldo J Lopes
- Rehabilitation Sciences Post-Graduate Program, Augusto Motta University Center (UNISUAM), Rio de Janeiro, Brazil -
- Medical Sciences Post-Graduate Program, School of Medical Sciences, State University of Rio de Janeiro (UERJ), Rio de Janeiro, Brazil
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