Benhamou M A, Revel M, Vallee C
Laboratoire d'Exploration de l'Appareil Locomoteur et d'Evaluation du Handicap, Université Paris V. Hôpital Cochin, France.
Exp Brain Res. 1995;105(3):432-8. doi: 10.1007/BF00233043.
Splenius capitis (SPL) electromyograms were recorded using conventional surface and intramuscular wire electrodes simultaneously during various head-neck movements and isometric tasks to test the selectivity of surface electrodes for SPL myoelectric signals. The insertion of bipolar wire electrodes was aided by a computerized tomographical study of each subject's neck. Surface electrodes were placed over the superficial SPL area. Head motion was recorded with an electromechanical device. The selective SPL wire recordings confirmed that SPL has two main functions: ipsilateral rotation and extension. It also plays a subordinate role in ipsilateral tilting of the head. Intramuscular and surface recording results were contradictory mainly for flexion and contralateral rotation. These discrepancies appeared to be due to 'cross-talk' from adjacent muscles, particularly from the sternocleidomastoid muscle. We conclude the validity of electrode recordings is questionable for SPL and most dorsal neck muscles, especially during isometric tests.
在各种头颈运动和等长任务期间，使用传统的表面电极和肌内线状电极同时记录头夹肌（SPL）的肌电图，以测试表面电极对SPL肌电信号的选择性。通过对每个受试者颈部进行计算机断层扫描研究来辅助双极线状电极的插入。表面电极放置在SPL浅表区域上方。头部运动通过机电装置记录。选择性的SPL线状电极记录证实，SPL有两个主要功能：同侧旋转和伸展。它在头部同侧倾斜中也起次要作用。肌内和表面记录结果在主要在屈曲和对侧旋转方面相互矛盾。这些差异似乎是由于相邻肌肉，特别是胸锁乳突肌的“串扰”所致。我们得出结论，对于SPL和大多数颈背肌肉，电极记录的有效性值得怀疑，尤其是在等长测试期间。
