Motor Science Research Center, School of Exercise & Sport Sciences, Department of Medical Sciences, University of Turin, Italy.
Motor Science Research Center, School of Exercise & Sport Sciences, Department of Medical Sciences, University of Turin, Italy.
J Electromyogr Kinesiol. 2014 Feb;24(1):25-30. doi: 10.1016/j.jelekin.2013.10.017. Epub 2013 Nov 11.
The assessment of abdominal muscles has became popular in recent years because the study of "core muscles" is now considered a pivotal approach for a number of fields. The purpose of this study was to describe the innervation zone (IZ) locations and optimal electrode sites in two core muscles: the obliquus externus (OE) and the obliquus internus (OI) abdominis muscles. Twenty healthy male subjects were recruited and the IZ location was studied during a submaximal isometric contraction using multichannel surface EMG. The optimal electrode position for OI was found to be 2cm lower the most prominent point of the anterior superior iliac spine, just medial and superior to the inguinal ligament. The optimal electrode position for OE was found to be 14cm from the median line, lower the level of 1cm above umbilicus, parallel to the line extending from the most inferior point of the costal margin to the opposite pubic tubercle (almost 45° with respect to the median line). Findings showed that for OI and OE muscles it is possible to provide indications for a muscle belly area suited for proper positioning of at least an electrode pair.
近年来，腹部肌肉的评估变得越来越流行，因为“核心肌肉”的研究现在被认为是许多领域的关键方法。本研究的目的是描述两个核心肌肉——腹外斜肌（OE）和腹内斜肌（OI）的神经支配区（IZ）位置和最佳电极位置。招募了 20 名健康男性受试者，并在使用多通道表面肌电图进行亚最大等长收缩时研究了 IZ 位置。OI 的最佳电极位置被发现是在前上髂棘最突出点下方 2cm 处，刚好在腹股沟韧带的内侧和上方。OE 的最佳电极位置被发现是在中线 14cm 处，在脐上 1cm 以下，与从最下缘肋缘延伸到对侧耻骨结节的线平行（相对于中线几乎呈 45°）。研究结果表明，对于 OI 和 OE 肌肉，可以为至少一对电极的适当定位提供肌肉腹区域的指示。
