1. Department of Health, Medicine and Caring Sciences, Division of Prevention, Rehabilitation and Community Medicine, Unit of Physiotherapy, Linköping University, Linköping, Sweden
2. Department of Rehabilitation Medicine, Linköping University, Linköping, Sweden
3. Department of Activity and Health, and Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
4. Department of Orthopaedics, Linköping University Hospital, Linköping, Sweden