really , i am interesting in this area , but after long searching and multiple contacts with staff professors of egypt engineering faculties , i could not find any one helping me !
Thank you for your most relevant question. One of our colleagues from St. Petersburg Polytechnical University is currently a Professor of Biomechanics at Brussels University
His name is Dr. V. A. Sholukha, you can also find his coordinates at ResearchGate.
He recently developed several application programs of computer modeling in the area of the human musculo skeletal system. I think you should ask your question to him too.
Hoping that this information may help you further,
You could try to download the free OpenSim software (http://opensim.stanford.edu/) and follow the introduction as provided on their website. It may help you to understand the basics of computational modelling.
I would also recommend you to read some papers on for example OpenSim (for example: OpenSim: open-source software to create and analyze dynamic simulations of movement) and general papers on computational modelling (for example: Muscle and tendon Properties, models, scaling, and application to biomechanics and motor control).