摘要：One of the most important applications of parametric representation of the systems is the modeling of the working space described by the end of kinematic chain during the motion. The approach to hyper-surfaces modeling is based on the direct geometric model considering the human upper limb as a kinematic structure similar to that of a robot with five degrees of freedom. For generating the surfaces in which the end-effector of the human upper limb moves, there were applied certain specific functions of the Matlab program, stating first the variables used in this program
