A television-based system for recording the kinematics of human gait

A kinematic measurement system based on standard video, combined with a hardware computer interface, for real time acquisition of marker coordinates has been developed. It records the positions of reflective makers attached to body segments using the real-time signal from a video camera. The system uses hardware video window during data collection for the elimination of unwanted signals generated by reflection from bright or shiny objects in the field of view. The system is fast, accurate, easy to use and relatively inexpensive and could be used for the analysis of normal and pathological gait routinely.