Name: extraction of the epp component from the surface emg
Uploaded: 2009-12-16T16:05:00
Description: Watch this Scientific Journal Video about Extraction of the EPP Component from the Surface EMG at JoVE.com

我想十分感谢大卫卡尔森，松本齿科大学的英语教授，他在编写本报告提供实物支持。我还要感谢Tadafumi足立区，在我们的实验室seminarist，遵守他在本次调查的主题。

1。肌电图电极的制备<ol><li>首先准备九个电极。其中8个是用于记录在肌肉站点的信号，一个是参比电极。 </li><li>记录和参比电极连接到放大器后，填写“电动导粘贴光盘。每个类型是确定的，但低流体类型更好。 </li><li>附加电极对皮肤之前，受牢固，并确定在脸上的咬肌的大致位置。 </li><li>优越的咬肌肌腱的重视，颧弓，其劣势肌腱下颌角。 </li><li>八个记录电极放置到一个长片，胶带在平?...

<ol>
	<li>Eccles, J. C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> The physiology of synapses. , (1964).</li><li>Mitzdorf, U. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Current+source-density+method+and+application+in+cat+cerebral+cortex:+investigation+of+evoked+potentials+and+EEG+phenomena.">Current source-density method and application in cat cerebral cortex: investigation of evoked potentials and EEG phenomena.</a> Physiol. Rev. 65, 37-100 (1985).</li><li>Rall, W., Shepherd, G. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Theoretical+reconstruction+of+field+potentials+and+dendrodendritic+synaptic+interactions+in+olfactory+bulb.">Theoretical reconstruction of field potentials and dendrodendritic synaptic interactions in olfactory bulb.</a> J. Neurophysiol. 31, 884-915 (1968).</li><li>Richardson, T. L., Turner, R. W., Miller, J. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Action-potential+discharge+in+hippocampal+CA1+pyramidal+neurons:+current+source+density+analysis.">Action-potential discharge in hippocampal CA1 pyramidal neurons: current source density analysis.</a> J. Neurophysiol. 58, 981-996 (1987).</li><li>Kumai, T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Location+of+the+neuromuscular+junction+of+the+human+masseter+muscle+estimated+from+the+low+frequency+component+of+the+surface+electromyogram.">Location of the neuromuscular junction of the human masseter muscle estimated from the low frequency component of the surface electromyogram.</a> J. Jpn. Physiol. 55, 61-68 (2005).</li><li>Mito, K., Sakamoto, K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Distribution+of+muscle+fiber+conduction+velocity+of+m.+masseter+during+voluntary+isometric+contraction.">Distribution of muscle fiber conduction velocity of m. masseter during voluntary isometric contraction.</a> Electroencephalogr. Clin. Neurophysiol. 40, 275-285 (2000).</li><li>Tokunaga, T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Two-dimensional+configuration+of+the+myoneural+junctions+of+human+masticatory+muscle+detected+with+matrix+electrode.">Two-dimensional configuration of the myoneural junctions of human masticatory muscle detected with matrix electrode.</a> J. Oral Rehabili. 25, 329-334 (1998).</li><li>Rohen, J. H., Yokochi, C., L&#x0171;tjen-Drecoll, E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> Color atlas of anatomy. , (2006).</li><li>Wichmann, T., DeLong, M. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Oscillation+in+the+basal+ganglia.">Oscillation in the basal ganglia.</a> Nature. 400, 621-622 (1999).</li></ol>

<ol><li>由于负电位被认为是要形成一个流动的终板电流，并积极偏转，流出来[1,2,3,4]，跟踪最负偏转必须对应网站定位的神经肌肉接头处[5]。图1b显示咬肌神经肌肉交界处找到在其下部分关闭，下颌骨，这大约是另一个利用传导方式的运动单位动作电位[6,7]的方法得到的结果相同的角度。 </li><li>咬肌具有解剖学特征的构象：其优越的肌腱是很长，其低劣的肌腱，很短的[8]。资源增值计划的组成部分的极性（和其振荡...

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<td>Analogue filter</td>
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<td>National Instruments</td>
<td>BNC-2090</td>
<td>8ch BNC adaptor</td>
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<td>Disc electrodes</td>
<td>&nbsp;</td>
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extraction of the epp component from the surface emg

一个表面肌电图（EMG），尤其是在神经肌肉交界处附近的记录，预计将有终板电位（EPP）的组件可以用适当的信号滤波器提取。有两个因素非常重要：必须记录在时尚单极肌电图，录音必须这样做相应的资源增值计划的低频信号，不排除。本报告介绍了如何从咬肌肌电图在人类主体的资源增值计划的组成部分。表面肌电信号是从八个网站，使用传统的光盘对齐在肌肉电极记录，等于电极间的距离快速牙龈紧咬从颧弓下颌角。参比电极放置在鼻尖上。资源增值计划的组成部分，是从原始肌电信号中提取10-35赫兹的范围与应用的高切数字滤波器（第二维巴特沃斯滤波器）。当过滤器设置为10赫兹，提取的资源增值计划“波偏转正面或负面，取决于录制现场。极性的差异，反映终板电流源库关系，最负相应的神经肌肉接头处的偏转网站。在咬肌的情况下，神经肌肉接头处估计，在劣势部分接近下颌角位于。资源增值计划的组成部分，展示了一个有趣的振荡时的高切的数字滤波器的截止频率设置为30赫兹。推行资源增值计划的振荡表明，肌肉收缩是在间歇性的方式调整。伴随各种疾病的异常震动可能会大幅由于这EPP振荡，变慢，是难以停止。

Watch this Scientific Journal Video about Extraction of the EPP Component from the Surface EMG at JoVE.com

Extraction of the EPP Component from the Surface EMG

终板电位（EPP）的组件可以提取使用数字滤波器的表面肌电信号。提取的资源增值计划“显示，约30赫兹的频率振荡。

从表面肌电信号的提取资源增值计划的组件

A surface electromyogram (EMG), especially when recorded near the neuromuscular junction, is expected to contain the endplate potential (EPP) component ...

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