Publicação: Electromyographic study of the trapezius muscle in free movements of the shoulder
Carregando...
Data
Autores
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Tipo
Artigo
Direito de acesso
Acesso restrito
Resumo
The objective of this study is to analyze the simultaneity of the actions of the three portions of the trapezius (superior portion = TS; middle portion = TM and inferior portion = TI) in elevation, lowering, retraction and protraction of the shoulders. The electromyographic tests were carried out in 20 volunteers using a 4-channel TECA TE 2-7 electromyograph and surface and single coaxial needle electrodes. The electromyographs, obtained with the two types of electrodes, show that in elevation and lowering of the shoulders, TS and TM present increasing and decreasing activity, respectively, from the beginning until the end of these movements. In retraction of the shoulders, TM and TI present increasing activity from the beginning to the end of the movement. In protraction, TS, TM and TI do not show any activity.
Descrição
Palavras-chave
adult, clinical article, controlled study, electromyogram, human, human experiment, male, muscle contraction, normal human, trapezius muscle, Action Potentials, Adult, Comparative Study, Electrodes, Electrodes, Implanted, Electromyography, Human, Male, Movement, Muscle Contraction, Muscle, Skeletal, Shoulder
Idioma
Inglês
Como citar
Electromyography and Clinical Neurophysiology, v. 34, n. 5, p. 279-283, 1994.
