If individual muscle forces could be routinely calculated in vivo, non-invasively, considerable insight could
be obtained into the etiology of injuries and the training of muscle for rehabilitation and sport. As there are
generally more muscles crossing a joint than there are degrees of freedom at the joint, determining the
individual forces in the muscles crossing a joint is a non-trivial problem. This study focused on the
development of the procedures necessary to estimate the individual muscle forces during a dumbell curl,
and the measurement procedures required for the determination of the necessary input parameters. The
procedures developed could easily be applied to other body movements. [Continues.
