Development of echo control strategy for AK prosthesis: An embedded system approach

In spite of wide availability, the current prosthesis does not meet most of the functional requirements along with the other parameters like metabolic energy, training period and cost. This paper presents the development of a low cost Above Knee (AK) prosthesis which regulates the knee damping automatically by calculating the speed of walking from the data of the normal limb. The prosthesis uses an additional hardware of wireless transmission system, which does not add to the cost significantly, but promises a speed adaptive control of AK prosthesis and thus requires significantly less training time for the amputee.