1. Institute of Motion Analysis and Research (IMAR), Department of Orthopaedic and Trauma Surgery, Tayside Orthopaedic and Rehabilitation Technology Centre, Ninewells Hospital and Medical School, University of Dundee, Dundee DD1 9SY, UK
2. Department of Physical Therapy, Faculty of Medical Rehabilitation Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
3. Intelligent Manufacture School, Tianjin Sino-German University of Applied Sciences, Tianjin 300350, China
4. Department of Rehabilitation Sciences, College of Applied Medical Sciences, Shaqra University, Riyadh 11961, Saudi Arabia