Simulation and analysis of the electromyographic interference pattern in normal muscle. Part I: Turns and amplitude measurements
Simulation and analysis of the electromyographic interference pattern in normal muscle. Part I: Turns and amplitude measurements
复制标题
正常肌肉肌电干扰图的模拟与分析。
DOI：
10.1002/mus.880090507
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发表时间：
1986
期刊：
影响因子：
3.4
通讯作者：
E. Stålberg
中科院分区：
文献类型：
--
作者：
S. Nandedkar;D. Sanders;E. Stålberg
通过将不同大小的运动单位动作电位（muap）加在一起，模拟了肌电图（EMG）干扰图（IP）。模拟IP的匝数（NT）随着MUAP放电次数的增加而增加。增加大振幅muap后，IP连续匝数之间的平均振幅（MA）差增大。我们的分析表明，IP的MA主要由信号中大型muap的幅度决定，而大型峰值更有可能由单个大型muap产生，而不是由几个小振幅muap的总和产生。
The electromyographic (EMG) interference pattern (IP) was simulated by adding together motor unit action potentials (MUAPs) of different sizes that had been recorded by a concentric needle EMG electrode. The number of turns (NT) of the simulated IP increased with the number of MUAP discharges. The mean amplitude (MA) difference between successive turns in the IP increased when large amplitude MUAPs were added. Our analysis demonstrates that the MA of the IP is determined mainly by the amplitude of large MUAPs in the signal and that large amplitude spikes are more likely to be generated by single large amplitude MUAPs than by summation of several small amplitude MUAPs.