... healthy. The ankles are represented by a pair of fixed, skewedhinges, but we know that one of these joints, the talocru-ral, changes its orientation as the joint rotates, and the other, the subtalar, ... regarding the role of the plantarflexors in propulsion,but their study examined the accelerations of the hiprather than the trunk COM [40].Dynamic simulation has also been used to investigate the determinants ... function such as the aggregate deviation from a given motion. Each of these choices has the potential to affect the performance of the simulation and thus may also affect the validity of clinical...