1. Department of Surgery, Central Finland Health Care District, Jyväskylä, Finland
2. Health Sciences, Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
3. Department of Orthopaedic and Trauma Surgery, Tampere University Hospital, Tampere, Finland
4. Biology of Physical activity, Faculty of Sport and Health Sciences, University of Jyväskylä, Finland
5. Department of General Practice, University of Helsinki and Helsinki University Hospital, HUS, Finland