Büll M L, Vitti M, De Freitas V
Electromyogr Clin Neurophysiol. 1989 Mar;29(2):119-25.
The trapezius (pars superior) and serratus anterior (pars inferior) muscles were analyzed in 25 adult volunteers from both sexes with a 2-channel TECA TE4 electromyograph with single coaxial needle electrodes. It was observed that in elevation and lowering of the shoulders, the trapezius shows preponderant activity. During retraction, both muscles are inactive, and during protraction, only the serratus anterior is inactive.
使用带有单同轴针电极的双通道TECA TE4肌电图仪，对25名成年男女志愿者的斜方肌（上部）和前锯肌（下部）进行了分析。观察到，在肩部抬高和降低过程中，斜方肌表现出优势活动。在肩胛骨后缩时，两块肌肉均无活动，而在肩胛骨前伸时，只有前锯肌无活动。
