Possibility of automatizing computer program for pulse density demodulation (PDD) processing of surface electrode electromyograms (EMG)

The possibility of automating the computer program for pulse density demodulation (PDD) processing of surface electrode electromyograms (EMG) is discussed. In our previous study, a strategy for assessing the accuracy of reconstructing motor commands by means of pulse density demodulation processing of electromyograms (PDD-EMG) was proposed. If all the steps involved in the processes of generation of the neural pulses in the motoneurons and observation of surface electrode EMG are simulated in a computer, by introducing the neurophysiological properties as real as possible, the known generated motor commands and neural pulses serve as the reference for the detailed analysis of the nature of errors in the result obtained by the processing. This provides a direct approach to assessing the accuracy of reconstructing motor commands by means of PDD-EMG. As a result of the computer simulation, it was shown that the reconstructed analog pattern of the motor command by means of the PDD-EMG corresponded fairly accurately to the theoretically generated one. Using this strategy, the possibility of automating the computer program for the real EMG, especially the method of determining threshold of extracting pulse, is investigated