Surface electromyography: proposal of a protocol for cervical muscles/Eletromiografia de superficie: proposta de um protocolo para musculos cervicais

Purpose: to present a proposal of a surface electromyography evaluation method for cervical muscles specific and detailed protocol, with a standardized collection method of electrical signal in these muscles. Method: the researchers took as reference the existing publications about this subject which evidenced a need for standardization, clarity, better reproducibility and greater specificity for the surface electromyography evaluation of the upper trapezium and sternocleidomastoid muscles fibers. The proposal preparation process for the current protocol included the cleaning of the target area, placing the electrodes, required tasks in order to collect and register the electrical signal and interpretation of the electromyography signal parameters. This evaluation method was carried out in 24 healthy volunteers of both genders, with an average age of 26 years. We used the electromyography Miotool 400 with 4 channels. Result: an evaluation surface electromyography method for upper trapezium and sternocleidomastoid muscles fibers was developed and tested in order to determine the best form of electrical signal data collection for these muscles. Conclusion: we submitted a protocol proposal to evaluate the cervical muscles by a surface electromyography, allowing the healthy professionals and researchers to get more information about this electrical potential evaluation method for the sternocleidomastoid and the upper trapezium muscles fibers. This knowledge will be an adjuvant in a more specific therapy. KEYWORDS: Electromyography; Electrodes; Site Selection; Electric Impedance Objetivo: apresentar uma proposta de avaliacao da eletromiografia de superficie em musculos cervicais de forma especifica e detalhada, com a finalidade de padronizar o metodo de coleta do sinal eletrico nesta musculatura. Metodo: os pesquisadores tomaram como referencia as publicacoes ja existentes, acerca do tema proposto, na qual foi evidenciada a necessidade de padronizacao, maior reprodutibilidade, clareza e maior especificidade para a avaliacao eletromiografica de superficie dos musculos esternocleidomastoideo e das fibras superiores do trapezio. O processo de elaboracao da proposta do protocolo abrangeu a limpeza da regiao avaliada, a colocacao e posicionamento dos eletrodos, as tarefas realizadas para a coleta do sinal eletrico, e os parAmetros a serem registrados e interpretados do sinal eletromiografico. Este metodo de avaliacao aplicou-se em 24 voluntarios saudaveis de ambos o