1. Unit of Physiotherapy, Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
2. Department of Activity and Health in Linköping, and Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
3. School of Behavioural, Social and Legal Sciences, Center for Health and Medical Psychology, Örebro University, Örebro, Sweden
4. Department of Behavioural Sciences and Learning, Linköping University, Linköping, Sweden
5. Department of Orthopaedics, Linköping University Hospital, Linköping, Sweden