Electrical activity of the masseter and supra hyoid muscles during swallowing of patients with multiple sclerosis.

Purpose: characterize the swallowing muscles electromyographic activity in EM.

Methods: we evaluated 60 individuals being 30 with definitive diagnosis in EMG and 30 without neurologic changes. Volunteers provided personal data through interview, and we also obtained data from clinical records on the time of diagnosis, disease clinic form and the EDSS scale score.