1. Department of Biomechanics, University of Nebraska, Omaha, NE, USA
2. Division of Physical Therapy Education, University of Nebraska Medical Center, Omaha, NE, USA
3. CHI Health Creighton University Medical Center and an adjunct faculty at the Department of Occupational Therapy at Creighton University, Omaha, NE, USA
4. Computer Science, University of Nebraska, Omaha, NE, USA
5. Faculty of Health Sciences, Universidad Autonoma of Chile, Chile