Dados do Trabalho

Título

ELECTROMIOGRAPHIC PROFILE OF MASSETER AND SUPRAHYIOID MUSCLES IN PEOPLE WITH PARKINSON DISEASE

Resumo

Objective: to characterize the electromyographic findings of the masseter and suprahyoid muscle group in maximal voluntary isometric contraction (MVIC) and during swallowing of different food volumes and consistencies, in individuals with Parkinson’s Disease (PD) and healthy ones, who composed the Group Comparison (GC). Method: thirty individuals with PD and thirty healthy ones were evaluated through the Surface Electromyography (EMG), where the mean values of the electrical potential (EP) of the masseter and suprahyoid muscle group were obtained in MVIC and during the swallowing function. Results: it was observed that the EP of the masseter and suprahyoid muscle group was significantly lower in the Parkinson’s Disease Group (PDG) in MVIC, and during the swallowing of all consistencies and volumes evaluated. The duration of muscular contraction was higher in individuals with PD, but with no statistical significance. In addition, muscular EP tends to reduce and the duration of muscular contraction tends to increase, according to the Hoehn and Yahr stages. Conclusion: the EP of the masseter and suprahyoid muscle group is reduced in MVIC and during the swallowing function in individuals with PD