1. The Gait Analysis Laboratory, Department of Orthopedic Surgery, Hvidovre University Hospital, Copenhagen, Denmark
2. Physical Medicine & Rehabilitation Research–Copenhagen (PMR-C), Copenhagen, Denmark
3. Institute for Physical and Occupational Therapy, The Faculty of Health and Technology, Metropolitan University College, Copenhagen
4. Institute of Neuroscience, University of Oregon, Eugene, OR, USA
5. Department of Rehabilitation Sciences College of Education, Nursing & Health Professions, University of Hartford, Hartford, CT, USA
6. Department of Physical and Occupational Therapy, Hvidovre University Hospital, Copenhagen, Denmark
7. Clinical Research Centre, Hvidovre University Hospital, Copenhagen, Denmark
8. Department of Orthopedic Surgery, Hvidovre University Hospital, Copenhagen, Denmark