Estimation of Shoulder Joint Reaction Forces and Moments Using MBS Dynamic Modeling

摘要

The paper presents a dynamic model created for estimating the magnitude of reaction forces and moments in the shoulder joint of the human upper limb. Considering that the flexionextension motion of the forearm is simulated under three different conditions, the reaction forces and moments are determined. The first actuating case is corresponding to the case in which the driving force is acting on the long end of the biceps muscle. In the second case the driving force is acting on the short end of the biceps muscle, and in the third case the driving force is acting on both ends of the biceps muscle.