1. Orofacial myofunctional changes and electromyographic activity of the orbicularis oris muscle in trombonists
- Author
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Ana Paula Arruda de Moura, Jully Anne Soares de Lima, Eduarda de Lima Amarante, Larissa Nadjara Alves Almeida, Luciane Spinelli de Figueirêdo Pessoa, Leandro de Araújo Pernambuco, and Giorvan Ânderson dos Santos Alves
- Subjects
Stomatognathic System ,Musicians ,Electromyography ,Facial Muscles ,Philology. Linguistics ,P1-1091 ,Otorhinolaryngology ,RF1-547 - Abstract
ABSTRACT Objective: to analyze whether trombonists present orofacial myofunctional changes and compare the electrical activity of the orbicularis oris muscle before and after playing their instrument. Methods: an observational, descriptive, and cross-sectional study. The sample consisted of 20 university trombonists. Data collection involved three steps: application of a questionnaire investigating some peculiarities of trombonists (Orofacial Myofunctional Evaluation with Expanded Scores - OMES-E), and electromyographic analysis of the orbicularis oris muscle before and after performing a piece with the trombone. The mean, standard deviation, frequency, and percentage were calculated, and the paired Student’s t test was used to compare the means of the electromyographic records before and after playing the trombone, at a 5% significance. Results: seventy per cent of trombonists reported some symptom of orofacial myofunctional alteration, namely, muscle compensations, tension, and pain. The myofunctional evaluation showed a mild change in cheek volume (90%) and labial commissure asymmetry (60%). The electrical activity of the lower orbicularis oris muscle decreased significantly after the trombone practice (p = 0.04), while that of the superior orbicularis oris muscle remained unchanged. Conclusion:trombonists show clinical and self-reported oromyofunctional changes as well as decreased electrical activity of the lower orbicularis oris muscle, after playing the trombone.
- Published
- 2021
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