A method to reduce soft tissue artifact in motion analysis using the dependency between the anatomical landmark and skin marker displacements

This study proposed a method to reduce the motion analysis error due to soft tissue artifact using a systematic pattern between the displacement of anatomical landmark and skin marker. A validation experiment to test the feasibility of the method was performed in which a female wearing an external fixator on the right shank. The proposed method reduced the error of the shank motion more than the comparable previous method, and the error reductions for some of kinematic variables were statistically significant.