Journal Information
Vol. 12. Issue 3.
Pages 241-253 (May - June 2006)
Share
Share
Download PDF
More article options
Vol. 12. Issue 3.
Pages 241-253 (May - June 2006)
Full text access
Six-minute walk work is not correlated to the degree of airflow obstruction in patients with Chronic Obstructive Pulmonary Disease (COPD)*
O trabalho de caminhada dos seis minutos não se correlaciona com o grau de obstrução do fluxo aéreo em doentes portadores de Doença Pulmonar Obstrutiva Crónica (DPOC)*
Visits
955
Paulo José Zimermann Teixeira1,2,
,
Corresponding author
paulojzt@feevale.br

Correspondência: Centro Universitário Feevale - Campus II, RS 239, 2755, Novo Hamburgo, RS, Brasil, CEP 93352-000. Telefone:+55(51) 586 8800.
, Cássia Cínara Costa1,**, Danilo Cortozi Berton2,***, Greice Versa2,****, Otávio Bertoletti1,**, Dáversom Bordin Canterle1,**
1 Trabalho realizado no Programa de Reabilitação Pulmonar do/Study undertaken as part of the Pulmonary Rehabilitation Programme of Centro Universitário Feevale, Novo Hamburgo – Rio Grande do Sul - Brasil
2 Trabalho realizado no Programa de Reabilitação Pulmonar do/Study undertaken as part of the Pulmonary Rehabilitation Programme of Pavilhão Pereira Filho – Santa Casa de Porto Alegre – Rio Grande do Sul - Brasil
This item has received
Article information
Abstract
Bibliography
Download PDF
Statistics
Abstract
Introduction

The six-minute walking test distance, despite being considered the main parameter, does not consider body weight which is known to influence exercise capacity. A body of evidence shows the degree of airflow obstruction does not correlate to walking distance and the body weight affects the work/energy required to perform the walk.

Objective

To verify if the degree of airflow obstruction correlates to six-minute walk work obtained by weight – walking distance product.

Patient and methods

A total of 60 patients with chronic obstructive pulmonary disease were evaluated. The physiological and functional variables were correlated to distance and body weight – walking distance product (WxW).

Results

There were no correlations between sixminute walk work and the degree of airflow obstruction. A positive and significant correlation were observed between the distance and Carbon Monoxide Diffusing Capacity (DLCO) (r=0.6; p<0.01) and between the distance and final SatO2 (r=0.3 ; p<0.05). Correlation between distance and Borg scale was negative and significant (r=−0.3; p<0.05). The six-minute walk work was positive and significantly correlated to DLCO (r=0.7; p<0.01) and negative but significantly correlated to Borg scale in the initial (r=− 0.3; p<0.01) and final of the test (r=−0.4; p<0.05).

Conclusion

Based on this data, there was no correlation between the degree of airflow obstruction and six-minute walk work test. The DLCO was the only respiratory functional parameter significantly correlated to the distance and to the sixminute walk work.

Key-words:
COPD
six- minute walking test
sixminute work walk
exercise capacity
Resumo
Introdução

No teste de caminhada dos seis minutos, o principal parâmetro é a distância percorrida. Não se considera o peso corporal, embora se conheça a sua influência na capacidade de exercício. Por outro lado, existem evidências de que o grau de obstrução não se correlaciona com a distância caminhada.

Objectivo

Verificar se existe correlação entre o grau de obstrução do fluxo aéreo e o trabalho de caminhar obtido a partir do produto distância x x peso (DxP).

Materiais e métodos

Foram estudados 60 doentes portadores de doença pulmonar obstrutiva crónica. As variáveis fisiológicas e funcionais foram correlacionadas com a distância percorrida e com o produto distância/peso.

Resultados

Não se encontraram correlações entre o trabalho de caminhar e o grau de obstrução ao fluxo aéreo, nem com os volumes pulmonares. Encontrou-se correlação positiva e significativa da distância com a difusão de monóxido de carbono (DLCO) (r=0,6; p<0,01) e com a SatO2 final (r=0,3; p<0,05). A correlação da distância foi negativa e significativa com a Δ da escala Borg (r=−0,3; p<0,05). O trabalho de caminhar correlacionou-se de maneira positiva e significativa com a DLCO (r=0,7; p<0,01) e de maneira negativa e significativa com a escala de Borg inicial (r=- 0,3; p<0,01) e final (r=−0,4; p<0,05).

Conclusões

Não existe correlação entre o grau de obstrução ao fluxo aéreo e o trabalho de caminhar na população estudada. A DLCO foi o único parâmetro funcional respiratório que se correlacionou significativamente com a distância e com o trabalho de caminhar.

Palavras-chave:
DPOC
trabalho de caminhada
teste dos seis minutos
capacidade de exercício
Full text is only aviable in PDF
Bibliography/Bibliografia
[1.]
P.J. Barnes.
Chronic Obstructive Pulmonary Disease.
New Engl J Med, 343 (2000), pp. 269-280
[2.]
Pawels RA, Buist AS, Calverley PMA, Jenkins CR, Hurd SS. Global strategy for the diagnosis, management, and prevention of chronic obstrutctive pulmonary disease: NHLBI/WHO Global Initiative for Chronic Obstructive Lung Disease (GOLD) Workshop summary. Available at http://www.goldcopd.com
[3.]
J.M. Marin, S.J. Carrizo, M. Gascon, A. Sanchez, B. Gallego, B. Celli.
Inspiratory capacity, dynamic hyperinsuflation, breathless and exercise performace during the 6-minutes-walk test in chronic obstructive pulmonary disease.
Am J Respir Crit Care Med, 163 (2001), pp. 1395-1399
[4.]
A. Fishman, F. Martinez, K. Naunheim, S. Piantadosi, R. Wise, A. Ries, G. Weinmann, D.E. Wood.
National Emphysema Treatment Trial Research Group. A randomized trial comparing lung-volume-reduction surgery with medical therapy for severe emphysema.
N Engl J Med, 348 (2003), pp. 2059-2073
[5.]
R.A. Rabinovich, J. Valaró, J. Roca.
Evaluación de la tolerância al ejercicio em pacientes com EPOC. Prueba de marcha de 6 minutos.
Arch Bronconeumol, 40 (2004), pp. 80-85
[6.]
O. Bauerle, C.A. Chrusch, M. Younes.
Mechanisms by which COPD affects exercise tolerance.
Am J Respir Crit Care Med, 157 (1998), pp. 57-68
[7.]
ATS Statement: Guidelines for the six-minute walk test.
Am J Respir Crit Care Med, 166 (2002), pp. 111-117
[8.]
M.-L. Chuang, I.-F. Lin, K. Wasserman.
The body weight-walking distance product as related to lung function, anaerobic threshold and peak VO2 in CPOD patients.
Respir Med, 95 (2001), pp. 618-626
[9.]
R. Carter, D.B. Holiday, C. Nwasuruba, J. Stocks, C. Grothues, B. Tiep.
6-Minute Walk Work Capacity in Patients With COPD.
Chest, 123 (2003), pp. 1408-1415
[10.]
R.J. Knudson, M.D. Lebowitz, C.J. Holdberg, B. Burrows.
Changes in the normal maximal expiratory flow-volume curve with growth and aging.
Am Rev Respir Dis, 127 (1983), pp. 725-734
[11.]
E.A. Gaensler, A.A. Smith.
Attachment for automated single breath diffusion capacity measurement.
Chest, 63 (1973), pp. 136-145
[12.]
P. Goldman, M.R. Becklake.
Respiratory function tests: normal values at median altitudes and the prediction of normal results.
Am Rev Tuberc, 79 (1959), pp. 457-467
[13.]
K.H. Killian, E.J.M. Campbell, E. Summers, N.L. Jones.
Relationship between pulmonary impairment, exercise capacity and intensity of dyspneia.
Eur Respir J, 6 (1993), pp. 571S
[14.]
G. Fink, S. Moshe, J. Goshen, E. Klainman, J. Lebzelter, S. Spitzer, M.R. Kramer.
Functional Evaluation in Patients with Chronic Obstructive Pulmonary Disease: Pulmonary Function Test versus Cardiopulmonary Exercise Test.
J Occup Environ Med, 44 (2002), pp. 54-58
[15.]
C.R. Mac Gavin, M. Artvinli, H. Naoe, McHardy.
Dyspnoea, disability, and distance walked: comparison of estimates of exercise performance in respiratory disease.
Br Med J, 2 (1978), pp. 241-243
[16.]
V.E. Mak, J.R. Bugler, C.M. Roberts, S.G. Spiro.
Effect of arterial oxygen desaturation on six minute walk distance, perceived effort, and perceived breath lessness in patients with airflow limitation.
Thorax, 48 (1993), pp. 33-38
[17.]
R. Carter, B. Nicotra, G. Huber.
Differing effects of airway obstruction on physical work capacity and ventilation in men and women with COPD.
Chest, 106 (1994), pp. 1730-1739
[18.]
D.E. ODonnel, S.M. Revill, K.A. Webb.
Dynamic Hyperinflation and Exercise Intolerance in Chronic Obstructive Pulmonary Disease.
AM J Respir Crit Care Med, 164 (2001), pp. 770-777
[19.]
T. Troosters, J. Vialro, R. Rabinovich, A. Casas, J.A. Barberá, R. Rodriguez-Roisin, et al.
Physiological responses to the 6-min walk test in patients with chronic obstructive pulmonary disease.
Eur Respir J, 20 (2002), pp. 546-549
[20.]
A. Casas, J. Vilaro, R.A. Rabinovich, A.F. Mayer, J.L. Valera, E. Bertoni, et al.
Encouraged six minute walking test reflects “maximal” sustainable exercise performance in COPD patients.
Eur Resp J, 20 (2002), pp. 285S

Professor do Centro Universitário Feevale de Novo Hamburgo/Médico pneumologista do Pavilhão Pereira Filho/Professor do Programa de Pós Graduação em Ciências Pneumológicas da Universidade Federal do Rio Grande do Sul/Professor at the Centro Universitário Feevale of Novo Hamburgo/Pulmonologist at Pavilhão Pereira Filho/ Professor on the Pulmonology Sciences Post Graduate Programme at the Universidade Federal do Rio Grande do Sul

Professores do Curso de Fisioterapia do Centro Universitário Feevale de Novo Hamburgo/Professors on the Physiotherapy Course at the Centro Universitário Feevale of Novo Hamburgo

Médico residente em Pneumologia do Pavilhão Pereira Filho – Santa Casa de Porto Alegre/Resident doctor in Pulmonology at the Pavilhão Pereira Filho – Santa Casa de Porto Alegre

Fisioterapeuta do Centro de Reabilitação Pulmonar do Pavilhão Pereira Filho – Santa Casa de Porto Alegre/Physiotherapist at the Pulmonary Rehabilitation Centre of the Pavilhão Pereira Filho – Santa Casa de Porto Alegre

Copyright © 2006. Sociedade Portuguesa de Pneumologia
Download PDF
Pulmonology
Article options
Tools

Are you a health professional able to prescribe or dispense drugs?