1. Biomechanics and Movement Science Program, University of Delaware, Newark, Delaware, USA
2. Department of Physical Therapy, University of Delaware, Newark, Delaware, USA
3. Department of Physical Therapy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
4. Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
5. Department of Sport Medicine, Norwegian School of Sport Sciences, Oslo, Norway
6. Division of Orthopedic Surgery, Oslo University Hospital, Oslo, Norway