We read with great interest the article by Dalgas et al.
1
Dalgas found a strong correlation between walking speeds evaluated during the 10
meter walk test and the 6 minute walk test (6MWT) in patients affected by chronic
stroke and in patients with multiple sclerosis (MS), whereas a weaker correlation
was found in healthy subjects.To read this article in full you will need to make a payment
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References
- Relations between 6 minute walking distance and 10 meter walking speed in patients with multiple sclerosis and stroke.Arch Phys Med Rehabil. 2012; 93: 1167-1172
- Short-distance walking speed and timed walking distance: redundant measures for clinical trials?.Neurology. 2006; 66: 584-586
- Letter by Iosa et al regarding article, “Reliability and validity of bilateral ankle accelerometer algorithms for activity recognition and walking speed after stroke”.Stroke. 2011; 42 (author reply e577): e576
- Walking speed over 10 metres overestimates locomotor capacity after stroke.Clin Rehabil. 2001; 15: 415-421
- Effects of walking endurance reduction on gait stability in patients with stroke.Stroke Res Treat. 2012; 2012 (810415. Epub 2011 Sep 28)
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© 2012 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.
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- The Authors RespondArchives of Physical Medicine and RehabilitationVol. 93Issue 10
- PreviewWe appreciate the comments from Morone et al on our article.1 We agree that there may be aspects that are not revealed by a correlation coefficient and that an analysis of the residuals may provide further insights. Our article already provides a figure showing linear regression lines based on the individual data points. As suggested in Morone's letter, we have now further created residual plots to look at whether the variations in residuals plotted against the predicted walking speed are systematic or not.
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