In the article entitled “Enhanced Gait-Related Improvements After Therapist- Versus Robotic-Assisted Locomotor Training in Subjects With Chronic Stroke: A Randomized Controlled Study” by Hornby et al,1 an error appears in the Methods section for calculation of the step length asymmetry. In response to a reviewer’s comments, the calculated step length asymmetry should be “(100−|100−100* (unimpaired step length/impaired step length)|)” instead of “100–100*unimpaired step length/impaired step length)”. The authors regret this error.
The corrected version can be viewed online at http://stroke.ahajournals.org.
1 [Correction for Vol 39, Number 6, June 2008. Pages 1786–1792.]