Bauermeister W, Jabre J F
Department of Rehabilitation Medicine, Tufts University School of Medicine, Boston, Massachusetts.
Muscle Nerve. 1992 Oct;15(10):1081-4. doi: 10.1002/mus.880151004.
Using a concentric macro electrode, both the concentric and macro action potentials of a motor unit were analyzed for duration, area, and amplitude. Eighty-six different motor units were analyzed from the tibialis anterior muscle in 10 normal subjects. The aim of this work was to compare concentric and macro action potential measurements of the same motor unit. The study revealed significant correlations between concentric and macro samples, with the concentric potential's area correlating better with the macro potential than its amplitude. This shows that the 10 to 15 muscle fibers studied by the concentric electrode serve as a good sample of the motor unit as a whole. We briefly review the technique used in concentric macro EMG, as well as describe the methods used for collecting and comparing both concentric and macro action potentials.
使用同心针状电极，对一个运动单位的同心针状电极动作电位和宏动作电位的持续时间、面积和幅度进行了分析。对10名正常受试者胫骨前肌的86个不同运动单位进行了分析。这项工作的目的是比较同一运动单位的同心针状电极动作电位测量值和宏动作电位测量值。研究揭示了同心针状电极样本和宏动作电位样本之间存在显著相关性，同心针状电极电位的面积与宏动作电位的相关性优于其幅度。这表明，同心针状电极研究的10至15条肌纤维可作为整个运动单位的良好样本。我们简要回顾了同心针状电极宏肌电图中使用的技术，以及描述了收集和比较同心针状电极动作电位和宏动作电位所使用的方法。
