Real-time Classification of Non-Weight Bearing Lower-Limb Movements Using EMG to Facilitate Phantom Motor Execution: Engineering and Case Study Application on Phantom Limb Pain.
Real-time Classification of Non-Weight Bearing Lower-Limb Movements Using EMG to Facilitate Phantom Motor Execution: Engineering and Case Study Application on Phantom Limb Pain.
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DOI：
10.3389/fneur.2017.00470
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发表时间：
2017
影响因子：
3.4
通讯作者：
Ortiz-Catalan M
中科院分区：
文献类型：
--
作者：
Lendaro E;Mastinu E;Håkansson B;Ortiz-Catalan M
肌电模式识别 (MPR) 和虚拟现实 (VR) 促进的幻肢运动执行 (PME) 被定位为治疗幻肢痛 (PLP) 的可行选择。最近一项针对患有慢性顽固性 PLP 的上肢截肢者使用 PME 的临床试验取得了有希望的结果。然而，如果要将这种技术用于下肢截肢的受试者，则需要在信号采集领域进行进一步的工作。我们提出了两种替代传统的双极、靶向记录的电极配置，用于获取表面肌电图。我们评估了他们在非负重下肢运动的实时 MPR 任务中的表现。我们发现使用导电织物圆周电极的单极记录的表现与经典双极记录类似，但更容易在临床环境中使用。此外，我们还提出了第一个下肢截肢患者接受 PME 治疗的慢性顽固性 PLP 病例研究。 23 次 PME 疗程后，患者的疼痛等级指数下降了 22 点（从 32 降至 10，即 68%）。这些结果代表了下肢 PME 的方法学进步和积极的概念验证。 PME 作为下肢截肢者 PLP 治疗方法的高证据水平临床验证仍有待开展进一步的工作。
Phantom motor execution (PME), facilitated by myoelectric pattern recognition (MPR) and virtual reality (VR), is positioned to be a viable option to treat phantom limb pain (PLP). A recent clinical trial using PME on upper-limb amputees with chronic intractable PLP yielded promising results. However, further work in the area of signal acquisition is needed if such technology is to be used on subjects with lower-limb amputation. We propose two alternative electrode configurations to conventional, bipolar, targeted recordings for acquiring surface electromyography. We evaluated their performance in a real-time MPR task for non-weight-bearing, lower-limb movements. We found that monopolar recordings using a circumferential electrode of conductive fabric, performed similarly to classical bipolar recordings, but were easier to use in a clinical setting. In addition, we present the first case study of a lower-limb amputee with chronic, intractable PLP treated with PME. The patient’s Pain Rating Index dropped by 22 points (from 32 to 10, 68%) after 23 PME sessions. These results represent a methodological advancement and a positive proof-of-concept of PME in lower limbs. Further work remains to be conducted for a high-evidence level clinical validation of PME as a treatment of PLP in lower-limb amputees.
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影响因子：
5.1
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