Three dimensional computer animation of kinematic data

The authors describe a 3-D computer animation of kinematic data with superimposed center of gravity and force vectors on a wire-like figure. This animation is used to provide ease in visualizing kinematic and kinetic data obtained by the motion analysis system at the Biomotion Laboratory at Massachusetts General Hospital. The animation permits qualitative assessment of data validity. In conjunction with the time histories of calculated parameters, the occurrence of events of interest can be detected, and the validity of the parameters can be checked.