INFLUENCE OF SKIN MOVEMENT ARTEFACTS ON THE CALCULATED KINEMATIC GEOMETRY AND JOINT KINETICS OF THE LOCOMOTOR SYSTEM DURING ACTIVITY

  • W. T. Lu
  • J. J. O'Connor
Keywords: motion analysis, skin movement artefacts, simulation, computer model

Abstract

INTRODUCTION: Motion analysis has played an important role in sports and orthopaedic biomechanics. A major source of error in modern skin-marker-based motion analysis systems is skin movement artefacts (Cappozzo et al., 1996). Traditional methods have either failed to reduce effectively skin movement artefacts or simply ignored them in reconstructing movement, resulting in artefactual joint dislocation or inaccurate limb positions, with important consequences on the calculated geometry and joint kinetics of the locomotor musculoskeletal system. The present study addresses these issues.