1. Prosthetics and Orthotics Department, The University of Jordan, Amman, Jordan
2. Centre for Health Sciences Research, University of Salford, Salford, UK
3. United National Institute for Prosthetics {\&} Orthotics Development, University of Salford, Salford, UK
4. School of Computing, Science {\&} Engineering, University of Salford, Salford, UK