1. Department of Physical and Occupational Therapy; Hvidovre University Hospital; Copenhagen Denmark
2. Gait Analysis Laboratory; Department of Orthopedic Surgery; Hvidovre University Hospital; Copenhagen Denmark
3. Department of Neuroscience and Pharmacology; University of Copenhagen; Copenhagen Denmark
4. The Movement Centre; Robert Jones and Agnes Hunt Hospital; Oswestry UK
5. Department of Rehabilitation Sciences College of Education, Nursing & Health Professions; University of Hartford; Hartford CT USA
6. Clinical Research Centre; Hvidovre University Hospital; Copenhagen Denmark
7. Institute of Neuroscience; University of Oregon; Eugene OR USA