Variação da atividade elétrica entre o repouso e a máxima contração voluntária dos músculos masseteres

• Autor(a) principal: Silva, Nathaly Santiago
• Data de Publicação: 2019
• Outros Autores: Feitosa, Taylinne Santana
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UFS
• Texto Completo: https://ri.ufs.br/jspui/handle/riufs/14517
• topic: Fonoaudiologia; Eletromiografia; Face; Músculos; Músculo masseter; Adulto; Masseter muscle; Electromyography; Adult; Speech; Language and hearing sciences; Músculo masetero; Electromiografía; Fonoaudiología

Introduction: Surface electromyography (EMGs) is a painless, noninvasive, easy-to-apply and objective test used to assess the electrical activities of muscle or muscle group during maximum resisted contraction, recovery, and functional use; It can be used to observe the variability of physiological conditions due to age and pathological conditions when presented. Objective: To compare a variation of the electrical potential of the masseter muscles between rest and the maximum resistant contraction in individuals with different age groups. Method: the research was approved by the ethics committee and performed at the UFS Lagarto clinic, obeying the ethical and biosafety rigors. The sample consisted of 26 adults without orofacials, male and aged between 26 and 42 years, who signed a free and informed consent form agreeing to participate in the research. The volunteers underwent electromyographic evaluation of the masseter muscles during the rest and maximum voluntary contraction. Results: There was a decrease in the electrical activity of the masseter when compared to G1 with G2, but there was no linearity of this decline when analyzing the universe studied. Therefore, it is necessary to take into consideration that the aging is a specific physiological process of each being, that way influenced by intrinsic and extrinsic complex factors to the organism. It was also observed that no rest had absolutely 0 individual in their electromyographic records, characterizing a basic state of electrical activity to guarantee the bonus. Conclusion: In view of the above, it was possible to verify in the present study that the 3rd decade of life marks the beginning of the decline in the electrical activity of masseter in men.