1 Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark abricca@health.sdu.dk.
2 The Research Unit PROgrez, Department of Physiotherapy and Occupational Therapy, Næstved-Slagelse-Ringsted Hospitals, Slagelse, Denmark.
3 Clinical Orthopaedic Research Hvidovre, Københavns Universitetshospital, Copenhagen, Denmark.
4 Research Unit for Musculoskeletal Function and Physiotherapy, Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark.
5 HRB Centre for Primary Care Research, Department of General Practice, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland.
6 Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark.
7 Department of Physiotherapy and Occupational Therapy, University Hospital of Copenhagen Herlev and Gentofte, Copenhagen, Denmark.