A potentiometer is fixed on the upper arm specifically on the Triceps Brachii Muscle by means of supporting bracket. An
elastic strap is attached which binds the assembly and the muscle strongly. The assembly consist of a hollow cylinder whose
inner diameter is equal to the diameter of the potentiometer as seen in the Figure.2.(b). Thus the potentiometer is made to be
rigidly fix with the rigid link such that when the muscle swings forward, the potentiometer shaft rotates inside the hollow
cylinder and sends signals to the Micro-Controller. The Backpack consist of all the circuit boards and the control system
along with Air supply. This enables easy repair and maintenance of the electronic system. The Backpack is supported by a
Supporting Channel as shown n Figure.3.(a)