1. Human Movement Analysis Laboratory, Dept. of Orthopaedic Surgery, Copenhagen University Hospital Amager-Hvidovre, Hvidovre, Denmark; Department of Sports Science and Clinical Biomechanics, Research Unit for Muscle Physiology and Biomechanics, University of Southern Denmark
2. Department of Sports Science and Clinical Biomechanics, Research Unit for Muscle Physiology and Biomechanics, University of Southern Denmark
3. Human Movement Analysis Laboratory, Dept. of Orthopaedic Surgery, Copenhagen University Hospital Amager-Hvidovre, Hvidovre, Denmark
4. Department of Midwifery, Physiotherapy, Occupational Therapy and Psychomotor Therapy, Faculty of Health, University College Copenhagen, Copenhagen, Denmark