A PROCESS AND A DEVICE FOR DECOMPOSITION OF COMPOUND MUSCLE ACTION POTENTIALS

摘要

The invention relates to a method and device for decomposition of compound muscle action potentials, CMAPs, into contributions of individual motor units. The technical problem solved by the invention is how to assess the time moments in which the motor unit action potentials, i.e. MUAPs, appear as the responses of motor units to external stimulation. The problem is solved by the process for decomposition of CMAPs into contributions of individual motor units, which comprises the following steps: receiving (100) multichannel electromyograms, i.e. EMGs captured during voluntary muscle contractions, as input signals, identifying (300) firing moments of motor units from EMG input signals captured during voluntary muscle contractions, calculating (400) filters of individual motor units or a common filter of several motor units, receiving (200) multichannel EMGs captured during stimulated muscle contractions, as input signals, and applying (500) calculated filters of individual motor units or a common filter of several motor units to input EMG signals captured during stimulated muscle contractions to decompose CMAPs into contributions of individual motor units.