AnyBody 

The AnyBody Modeling System™ is a software system for simulating the mechanics of the live human body

The environment is defined in terms of external forces and boundary conditions, and the user may impose any kind of posture or motion for the human body - either from scratch or from a set recorded motion data. AnyBody then runs a simulation and calculates the mechanical properties for the body-environment system.

From AnyBody the user can obtain results on individual muscle forces, joint forces and moments, metabolism, elastic energy in tendons, antagonistic muscle actions and much more.