1 Department of Physical Therapy, Laboratory of Clinical Biomechanics, Faculty of Medicine, University of Chile, Santiago, Chile.
2 Laboratory of Biomechanics, Hospital San José, Santiago, Chile.
3 Department of Physiotherapy, University of Valencia, Valencia, Spain.
4 Chilean Society of Hemophilia, Santiago, Chile.
5 Anatomy and Developmental Biology Program, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile.
6 Biomedical Neuroscience Institute, Faculty of Medicine, University of Chile, Santiago, Chile.
7 Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands.