Correcting electrode displacement errors in motor unit tracking using high density surface electromyography (HDsEMG)

This study discusses a technique to correct for effects of electrode grid displacement across serial surface EMG measurements with high-density electrode arrays (HDsEMG). A proof of concept study shows that automated correction is possible and that agreement is increased between the same motor unit action potentials observed across different measurements. It also shows great potential for assisting motor unit tracking studies, indicating that otherwise electrode displacements cannot always be precisely described.