Electromyography in Cases of Congenital and Traumatic Arm Amputations

Abstract

Routine electromyographic (EMG) tests were carried out in 50 cases of individuals whose arm had been amputated. Signs of lower motor neuron lesions were apparent in a number of examined muscles principally within the region of the stump. Frequency analyses of EMG signals were carried out according to a previously described method. On the basis of the results of the convention of the EMG tests and the frequency analyses, an attempt was made to map out the muscles on the amputation side which would be suitable or unsuitable for producing signals for control of powered prostheses. The results are presented by diagrams and accompanying graphs. There is a bibliography with 12 references.