Correction to: Spinal Cord (2008) 46, 96–102; doi:10.1038/sj.sc.3102087; published online 17 July 2007

Since the publication of this article, the authors have realized that an error was made in the regression equation associated with Figure 3. The constant value 85.38 was erroneously written as 0.52.

The correct equation is therefore: skeletal muscle CSA (cm2)=10.418 (MAS)+85.38

The authors would like to apologize for this error.