Use of an electromagnetic system for assessment of lumbar loading

An alternative method to video-and optoelectric-based motion analysis systems is presented for assessment of lumbar loading in an industrial setting. It benefits from its accuracy in tracking three-dimensional motion, portability and cost. The signal distortion caused by metal and restriction to tracking four body landmarks are potential limitations to address and a method for modelling the upper body is presented. In this lifting study, the Fastrak electromagnetic system has been demonstrated to be a useful tool in collecting position and orientation of body landmarks in an industrial setting for use in determining trunk motions and lumbar moments.