1. Department of Physiotherapy and Occupational Therapy, Copenhagen University Hospital, Herlev and Gentofte, Hellerup, Denmark
2. Traenings- og rehabiliteringscentret Lyngby-Taarbæk kommune, Kgs. Lyngby, Denmark
3. Rehabilitation Center Skovbrynet, Holte, Denmark
4. Center of Prevention and Rehabilitation, Gentofte, Denmark
5. Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark