Applications of HDsEMG: An Array of Options
HDsEMG has been defined as the use of four or more closely spaced electrodes to give insights into the spatial distribution of myoelectric excitation across a muscle. While traditional EMG gives an insight into the global activation strategies of the muscles, HDsEMG offers a window into the regional excitation and hence the recruitment and modulation of localized motor units within or between muscles.
HDsEMG techniques have allowed for new questions to be asked within neurophysiology, neurorehabilitation, engineering, sports science, ergonomics, and clinical intervention assessments. Although the use of HDsEMG has grown over the past years, applications have been largely limited to constrained or isometric contractions. Now, with advances in fully wireless HDsEMG technology, applications of HDsEMG can include dynamic movements to provide unique insights from the neuromuscular system.