Concordance of the location of the innervation zone of the tibialis anterior muscle using voluntary and imposed contractions by electrostimulation
Concordance of the location of the innervation zone of the tibialis anterior muscle using voluntary and imposed contractions by electrostimulation
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DOI：
10.1016/j.jelekin.2016.01.002
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发表时间：
2016-04-01
影响因子：
2.5
通讯作者：
Araneda, O. F.
中科院分区：
文献类型：
--
作者：
Guzman-Venegas, R. A.;Bralic, M. P.;Araneda, O. F.
背景：神经支配区（inneuration zone， IZ）对应于神经肌肉连接的位置。它的位置可以通过排列的表面线性电极阵列来确定。这种方法通常使用随意肌收缩（VC）。然而，在临床条件下，如痉挛，这种类型的收缩是难以进行的，也可能有必要定位IZ。因此，通过电刺激（ES）施加的收缩可以作为一种替代方法。比较两种不同类型的收缩所获得的激振区位置的背景资料很少。目的：评价电刺激下胫前肌自发收缩与强制收缩的一致性，以确定健康志愿者胫前肌神经支配带的位置。方法：16名志愿者（男性8名，女性8名，年龄22.1 +/- 1.4岁，体重61.6 +/- 7.5 kg，身高167.1 +/- 7.5 cm）使用线性电极阵列对胫骨前肌（TA）进行评估。使用两种类型的肌肉收缩，自愿（10% MVC）和ES强制收缩来定位TA肌的IZ。采用Bland-Altman方法和一致性相关系数（CCC）评价两种条件之间的一致性。分析应用于绝对位置和相对位置的长度解剖地标框架。结果：绝对位置的CCC为0.98 (p < 0.0001, 95% CI[0.98-1.00])，相对位置的CCC为0.98 （p < 0.0001, 95% CI[0.97-1.00]）。绝对数据Bland-Altman分析显示平均差异为0.63 mm （SD: 4.1）。然而，对于调整后的数据，平均差异为0.20% （SD: 1.2）。基于绝对数据的结果的可信度为98%，而基于相对数据的结果可信度为82%。结论：在健康志愿者中，使用ES引起的收缩引起的TA肌的IZ位置与使用VC引起的位置基本一致。(C) 2016 Elsevier Ltd.版权所有。
Background: The innervation zone (IZ) corresponds to the location of the neuromuscular junctions. Its location can be determined by using arranged surface linear electrode arrays. Typically, voluntary muscle contractions (VC) are used in this method. However, it also may be necessary to locate the IZ under clinical conditions such as spasticity, in which this type of contraction is difficult to perform. Therefore, contractions imposed by electrostimulation (ES) can be an alternative. There is little background comparing the locations of IZ obtained by two different types of contractions. Objective: Evaluate the concordance between using voluntary and imposed contractions from electrostimulation in order to determine the location of the innervation zone of the tibialis anterior muscle in healthy volunteers. Methods: The tibialis anterior (TA) muscle of sixteen volunteers (men: 8; women: 8; age: 22.1 +/- 1.4 years, weight: 61.6 +/- 7.5 kg, height: 167.1 +/- 7.5 cm) were evaluated using a linear electrode array. The IZ of the TA muscle was located using two types of muscle contractions, voluntary (10% MVC) and imposed contractions by ES. The concordance between both conditions was evaluated using the Bland-Altman method and the concordance correlation coefficient (CCC). The analyses were applied to the absolute and relative positions to the length of an anatomical landmark frame. Results: CCC for absolute position was 0.98 (p < 0.0001, 95% CI [0.98-1.00], and CCC for relative positions also was 0.98 (p < 0.0001, 95% CI [0.97-1.00]). The Bland-Altman analysis for absolute data showed an average difference of 0.63 mm (SD: 4.1). Whereas, for adjusted data, the average difference was 0.20% (SD: 1.2). The power of the results, based on absolute data, was 98%, whereas for relative data, 82%. Conclusion: In healthy volunteers, there was a substantially concordance between the location of the IZ of the TA muscle derived from using contractions imposed by ES and the location derived from using VC. (C) 2016 Elsevier Ltd. All rights reserved.