The 6-minute walk distance cannot be accurately assessed at home in people with COPD

References

• Rasekaba T, Lee A, Naughton M, et al. The six-minute walk test: a useful metric for the cardiopulmonary patient. Intern Med J 2009;39:495–501
   PubMed Web of Science ®Google Scholar
• Jenkins S. 6-minute walk test in patients with COPD – clinical applications in pulmonary rehabilitation. Physiotherapy 2007;93:175–82
   Web of Science ®Google Scholar
• Lacasse Y, Goldstein R, Lasserson TJ, Martin S. Pulmonary rehabilitation for chronic obstructive pulmonary disease. Cochrane Database Syst Rev 2006;(4):CD003793
   PubMedGoogle Scholar
• American Thoracic Society. ATS Statement: guidelines for the 6-minute walk test. American Am J Respir Crit Care Med 2002;166:111–17
   PubMed Web of Science ®Google Scholar
• Brooks D, Solway S, Weinacht K, et al. Comparison between an indoor and an outdoor 6- minute walk test among individuals with chronic obstructive pulmonary disease. Arch Phys Med Rehabil 2003;84:873–6
   PubMed Web of Science ®Google Scholar
• Sciurba F, Criner G, Lee S, et al.; National Emphysema Treatment Trial Research Group. Six-minute walk distance in chronic obstructive pulmonary disease. Reproducibility and effect of walking course layout and length. Am J Respir Crit Care Med 2003;167:1522–7
   PubMed Web of Science ®Google Scholar
• Beekman E, Mesters I, Hendriks E, et al. Course length of 30 metres versus 10 metres has a significant influence on six-minute walk distance in patients with COPD: an experimental crossover study. J Physiother 2013;59:169–76
   PubMed Web of Science ®Google Scholar
• Maltais F, Bourbeau J, Shapiro S, et al. Effects of home-based pulmonary rehabilitation in patients with chronic obstructive pulmonary disease: a randomized trial. Ann Intern Med 2008;149:869–78
   PubMed Web of Science ®Google Scholar
• Global strategy for the diagnosis, management and prevention of COPD, Global Initiative for Chronic Obstructive Lung Disease (GOLD) [Internet]. 2013. Available from: http://www.goldcopd.org/[last accessed 9 Sept 2013]
   Google Scholar
• Hernandes N, Wouters E, Meijer K, et al. Reproducibility of 6-minute walking test in patients with COPD. Eur Respir J 2011;38:261–7
   PubMed Web of Science ®Google Scholar
• Eiser N, Willsher D, Dore CJ. Reliability, repeatability and sensitivity to change of externally and self-paced walking tests in COPD patients. Respir Med 2003;97:407–14
   PubMed Web of Science ®Google Scholar
• Spencer L, Alison J, McKeough Z. Six-minute walk test as an outcome measure. Are two six-minute walk tests necessary immediately after pulmonary rehabilitation and at three-months follow-up? Am J Phys Med Rehabil 2007;87:224–8
   Web of Science ®Google Scholar
• Australian Government: Bureau of Meterology. 2013. Available from: http://www.bom.gov.au/[last accessed 18 Sept 2013]
   Google Scholar
• Bansal V, Hill K, Dolmage T, et al. Modifying track layout from straight to circular has a modest effect on the 6-min walk distance. Chest 2008;133:1155–60
   PubMed Web of Science ®Google Scholar
• Borg G. Psychophysical bases of perceived exertion. Med Sci Sports Exerc 1982;14:377–81
   PubMed Web of Science ®Google Scholar
• Holland AE, Hill C, Rasekaba T, et al. Updating the minimal important difference for six-minute walk distance in patients with chronic obstructive pulmonary disease. Arch Phys Med Rehabil 2010;91:221–5
   PubMed Web of Science ®Google Scholar
• Bland J, Altman D. Statistical methods for assessing agreement between two methods of clinical measurement. Lancet 1986;1:307–10
   PubMed Web of Science ®Google Scholar
• Portney L, Watkins M. Foundations of clinical research–applications to practice. 3rd ed. New Jersey: Pearson Education; 2009
   Google Scholar
• Enright P. The six-minute walk test. Respir Care 2003;48:783–5
   PubMedGoogle Scholar
• Najafi R, Helbostad J, Moe-Nilssen R, et al. Does walking strategy in older people change as a function of walking distance? Gait Posture 2009;29:261–6
   PubMed Web of Science ®Google Scholar
• Annegarn J, Spruit MA, Savelberg HH, et al. Differences in walking pattern during the 6-minute walk test between patients with COPD and healthy subjects. PLoS One 2012;7:e37329
   PubMed Web of Science ®Google Scholar
• Macfarlane P, Looney M. Walking length determination for steady state walking in young and older adults. Res Q Exerc Sport 2008;79:261–7
   PubMed Web of Science ®Google Scholar
• Casas A, Vilaro J, Rabinovich R, et al. Encouraged 6-min walking test indicates maximum sustainable exercise in COPD patients. Chest 2005;125:55–61
   Web of Science ®Google Scholar
• Troosters T, Gosselink R, Decramer M. Six minute walking distance in health elderly subjects. Eur Respir J 1999;14:270–4
   PubMed Web of Science ®Google Scholar
• Troosters T, Vilaro J, Rabinovich R. Physiological responses to the 6-min walk test in patients with chronic obstructive pulmonary disease. Eur Respir J 2002;20:564–9
   PubMed Web of Science ®Google Scholar
• Puhan M, Mador M, Held U, et al. Interpretation of treatment changes in 6-minute walk distance in patients with COPD. Eur Respir J 2008;32:637–43
   PubMed Web of Science ®Google Scholar
• Pinto-Plata VM, Cote C, Cabral H, et al. The 6-minute walk distance: change over time and value as a predictor of survival in severe COPD. Eur Respir J 2004;23:28–33
   PubMed Web of Science ®Google Scholar
• Spruit MA, Polkey MI, Celli B, et al.; Evaluation of COPD Longitudinally to identify predictive surrogate endpoints (ECLIPSE) study investigators. Predicting outcomes from 6-minute walk distance in chronic obstructive pulmonary disease. J Am Med Dir Assoc 2012;13:291–7
   PubMed Web of Science ®Google Scholar
• Cote CG, Pinto-Plata V, Kasprzyk K, et al. The 6-min walk distance, peak oxygen uptake, and mortality in COPD. Chest 2007;132:1778–85
   PubMed Web of Science ®Google Scholar
• Jones S, Kon SS, Canavan JL, et al. The five-repetition sit-to-stand test as a functional outcome measure in COPD. Thorax 2013;68:1015–20
   PubMed Web of Science ®Google Scholar
• Kon S, Patel MS, Canavan JL, et al. Reliability and validity of 4-metre gait speed in COPD. Eur Respir J 2013;42:33–40
   Web of Science ®Google Scholar
• Keating A, Lee AL, Holland AE. Lack of perceived benefit and inadequate transport influence uptake and completion of pulmonary rehabilitation in people with chronic obstructive pulmonary disease: a qualitative study. J Physiother 2011;57:183–90
   PubMed Web of Science ®Google Scholar