be tensioned independent of the rotation of the elbow 17 when the elbow 17 is rotated in one direction cable 26 is tensioned and cable 27 is loosened when the elbow 17 is rotated in the opposite direction cable 27 is tensioned and cable 26 is loosened similar control of a different motion set of the invention 7 can be achieved using the shoulder motion 25 as the amputee moves their shoulders 20 the motion is captured with a harness 29 and converted into tension in the bowden cables 26 27 the resulting force is then transferred into the designed motion in the prosthetic hand device 7 based on operator input for example the operator can go from an open hand 22 to a closed hand with thumb up 23 by moving their shoulders all simple motions of the prosthetic hand device can be created by the combination of the three input methods shoulder motion elbow rotation and semg signal referring now to fig5 two particular motions of the prosthetic hand device 7 are depicted the lateral motion 30 and the light tool motion 31 are depicted the example object for the tool motion is a small cylinder 32 in more detail still referring to the invention of fig5 the first motion lateral 30 is achieved using the hybrid control composed of the hierarchical controller 1 and mechanical controller 21 in the same fashion the light tool motion 31 can be achieved i e using the hierarchical controller 1 and mechanical controller.