MACRO ELECTROMYOGRAPHY AND MOTOR UNIT NUMBER INDEX IN THE TIBIALIS ANTERIOR MUSCLE: DIFFERENCES AND SIMILARITIES IN CHARACTERIZING MOTOR UNIT PROPERTIES IN PRIOR POLIO
MACRO ELECTROMYOGRAPHY AND MOTOR UNIT NUMBER INDEX IN THE TIBIALIS ANTERIOR MUSCLE: DIFFERENCES AND SIMILARITIES IN CHARACTERIZING MOTOR UNIT PROPERTIES IN PRIOR POLIO
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DOI：
10.1002/mus.21878
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发表时间：
2011-03-01
期刊：
影响因子：
3.4
通讯作者：
Stalberg, Erik
中科院分区：
文献类型：
--
作者：
Sandberg, Arne;Nandedkar, Sanjeev D.;Stalberg, Erik
我们的目的是建立一个大肌肉的运动单位数指数（MUNIX）的非侵入性方法的有用性，并研究如何宏肌电图（EMG）和MUNIX相互补充，在描述运动单位（MU）在以前的脊髓灰质炎。对33例既往脊髓灰质炎患者的48块胫骨前肌进行了MUNIX和宏肌电图检查。此外，还考察了MUNIX的重现性。它表明，MUNIX可以用来表征MU具有高重现性，即使在一个大的肌肉。根据MUNIX值判断，患者的运动神经元减少了25%，而宏观EMG表明神经元损失了60%。与对照材料相比，宏观肌电图显示出比MUNIX更明显的变化。这一发现的原因之一可能是使用这两种方法研究的MU群体的差异。肌肉神经43：335-341，2011
Our objective was to establish the usefulness of the noninvasive method of the motor unit number index (MUNIX) in a large muscle and to study how macro electromyography (EMG) and MUNIX complement each other in describing the motor units (MUs) in prior polio. MUNIX and macro EMG were performed in 48 tibialis anterior muscles in 33 prior polio patients. In addition, the reproducibility of MUNIX was investigated. It is shown that MUNIX can be used to characterize MUs with high reproducibility, even in a large muscle. As judged by MUNIX values, the patients had a 25% reduction of motor neurons, whereas the macro EMG indicated a loss of 60% of the neurons. Macro EMG showed more pronounced changes compared with control material than the MUNIX. One of the reasons for this finding may be the difference in MU populations studied with the two methods. Muscle Nerve 43: 335-341, 2011