1. BIOMED, Hasselt University, Diepenbeek and REVAL Research Institute, PHL University College, Hasselt, Belgium
2. Katholieke Universiteit Leuven, Departments of Kinesiology and Rehabilitation Sciences, Belgium
3. Masku Neurological Rehabilitation Center, Finland
4. Hospital de Dia de Barcelona, CEMCat, Fundació Esclerosi Múltiple, Spain
5. National MS Center, Melsbroek, Belgium
6. Center Neurologique et de Réadaptation Fonctionelle, Fraiture-en-Condroz, Belgium
7. Rehabilitation and MS Center Overpelt, Belgium
8. The Mellen Center for Multiple Sclerosis Treatment and Research, the Cleveland Clinic, Cleveland, OH, USA
9. Department of Rehabilitation Medicine, VU University Medical Center, Amsterdam, The Netherlands
10. Neurologische Rehabilitations and MS-Abteilung, Berner Klinik, Montana, Switzerland
11. Department of Sport Science, University of Aarhus, Denmark