Electromyography and elastography investigation of arm and trunk muscles

我们的研究方向是研究上肢和背部肌肉是如何被激活的。对手臂肌肉的兴趣源于许多人在失去一只手臂，有时失去两只手臂时所面临的挑战。在截肢手术中，肌肉被绑在残肢末端。它们仍然可以收缩，但不会产生有用的运动。然而，随着肌电图（EMG）信号在收缩的起源，肌电假体可以被激活。截肢通常只留下一个短的前臂或没有前臂，而上臂的少数但体积大的肌肉成为控制部位的最佳候选人。我们的研究包括开发方法，通过使用表面电极阵列和超声（US）信号衍生的弹性图，可以从这些大体积肌肉中识别许多表面控制部位。通过促进多功能假肢的操作，我们的研究可以为许多上肢截肢者的个人和职业生活的改善做出贡献。

Our research program is oriented toward the study of how upper limb and back muscles are activated. Interest in the arm's muscles derives from the challenge facing many persons when they lose one arm and sometimes both of them. During an amputation, muscles are tied around the end of the stump. They can still be contracted but no useful movement is produced. However, with the electromyographic (EMG) signal at the origin of the contraction, a myoelectric prosthesis can be activated. Amputation often leaves only a short or no forearm and the few but voluminous muscles of the upper arm become the best candidates as control sites. Our research consists at developing ways by which many surface control sites could be identified from these voluminous muscles by using surface electrodes arrays and elastography maps derived from ultrasound (US) signals. By facilitating the operation of multifunctional prostheses, our research could contribute to the improvement of the personal and professional life of many upper limb amputees.