Stålberg E, Andreassen S, Falck B, Lang H, Rosenfalck A, Trojaborg W
Department of Clinical Neurophysiology, University Hospital, Uppsala, Sweden.
J Clin Neurophysiol. 1986 Oct;3(4):313-48. doi: 10.1097/00004691-198610000-00003.
The physiology of the motor unit potential (MUP) is reviewed. The aim is to identify the electrophysiological events in the motor unit that generate the individual parts of the MUP. This is based on insight gained from new experimental techniques, such as single-fiber electromyography (EMG), scanning EMG, and simulation studies of the MUP. A terminology for the different parts of the MUP is also suggested, and nine parameters used to describe different features of the MUP are delineated: duration, spike duration, amplitude, area, spike area, phases, turns, satellites, and variability. Technical aspects, such as electrode type, filtering, and sampling rate of the computers, are discussed as well. In Appendix A, different manual and computer-aided methods for quantitative MUP analysis are described. Despite minor systematic differences between the methods, MUP durations measured by different methods correlate highly with each other (Appendix B). The manual and computer-aided methods have comparable variability between repeated measurements.
本文回顾了运动单位电位（MUP）的生理学。目的是确定运动单位中产生MUP各个部分的电生理事件。这是基于从新的实验技术中获得的见解，如单纤维肌电图（EMG）、扫描EMG以及MUP的模拟研究。还提出了MUP不同部分的术语，并描述了用于描述MUP不同特征的九个参数：持续时间、波峰持续时间、幅度、面积、波峰面积、相位、转折、卫星波和变异性。还讨论了技术方面，如电极类型、滤波和计算机的采样率。在附录A中，描述了不同的手动和计算机辅助的MUP定量分析方法。尽管这些方法之间存在微小的系统差异，但不同方法测量的MUP持续时间彼此高度相关（附录B）。手动和计算机辅助方法在重复测量之间具有相当的变异性。
