About the Authors

Robert W. Motl

robmotl@illinois.edu.

Affiliation Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America

Lara A. Pilutti

Affiliation Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America

Yvonne C. Learmonth

Affiliation Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America

Myla D. Goldman

Affiliation Department of Neurology, University of Virginia, Charlottesville, Virginia, United States of America

Ted Brown

Affiliation MS Center at Evergreen, Evergreen Health, Evergreen, Washington, United States of America

Competing Interests

Acorda Therapeutics funded this study. RWM is a consultant for Acorda Therapeutics and Biogen Idec. LAP and YCL report no conflicts of interest. MDG has served as a consultant for Acorda Therapeutics and Novartis Pharmaceuticals, but does not report any current conflicts of interest. TB is a consultant for Acorda Therapeutics, Biogen Idec, Genzyme, Pfizer, and Teva. There are no patents, products in development or marked products to declare. This does not alter the authors′ adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: RWM MDG TB. Performed the experiments: RWM LAP YCL. Analyzed the data: RWM LAP YCL. Contributed reagents/materials/analysis tools: RWM. Wrote the paper: RWM LAP YCL MDG TB.