1. Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden;
2. Division of Orthopaedic Surgery, Oslo University Hospital, Oslo, Norway;
3. Institute of Health and Caring Sciences, Sahlgrenska, Academy, Gothenburg University, Gothenburg, Sweden;
4. Physiotherapy Department, Illawarra Shoalhaven Local Health District, New South Wales, Australia;
5. Department of Physical Therapy, Sahlgrenska University Hospital, Molndal, Sweden;
6. Department of Physical Therapy, Sahlgrenska University Hospital, Gothenburg, Sweden