1. Department of Physical Therapy, College of Medical Rehabilitation, Taibah University: PO Box 344, Almadina Almunawara 41411, Saudi Arabia
2. Department of Biomechanics, Faculty of Physical Therapy, Cairo University, Egypt
3. Department of Basic Science, Faculty of Physical Therapy, Cairo University, Egypt
4. Department of Orthopedic, Faculty of Physical Therapy, Cairo University, Egypt