Visual3D is the premier biomechanics analysis tool for measuring movement and force data as collected by almost any kind of 3D motion capture system. It is a Microsoft Windows application.
It provides the calculations needed for kinematics and kinetics - including support for instrumented treadmills. It includes the latest mathematical techniques for optimizations, signal processing and filtering, inverse kinematics, complex biomechanical modeling, forces and force structures, and much more.