Au Cheuk-Yan, Mehra Prabhav, Leung Kenry Wc, Tong Raymond Ky
IEEE Int Conf Rehabil Robot. 2019 Jun;2019:300-304. doi: 10.1109/ICORR.2019.8779541.
This paper describes the design of an Electromyographically(EMG)-driven Neuromuscular Electrical Stimulation (NMES) cycling system. It utilises real-time EMG from actively participating stroke survivors as feedback control to drive the cycling system for rehabilitation. The user controls the speed of the cycling system using muscle activities of the side affected recorded by EMG electrodes. Additionally, adaptable NMES stimulations; also EMG based, were provided in cyclic pattern to the respective muscle groups in order to improve muscle coordination. The targeted muscle groups used to control the system were the Hamstring (HS), Tibialis Anterior (TA), Quadriceps (QC), Gastrocnemius Lateralis (GL) of the leg on the affected side. Using the system, 20 30-minutes sessions were conducted with chronic stroke survivors (n=10) at frequency of 2-4 sessions per week. Clinical assessment scores, namely FMA_LE, BBS and 6MWT were calculated before the first session and after the completion of 20 sessions. All the assessment scores showed significant improvement after using the system; FMA_LE(P=0.0244), BBS(P=0.0156), 6MWT(P=0.0112), and SI (P=0.0258), showing that the EMG-driven NMES cycling system provides effective rehabilitation for stroke survivors in terms of muscle strength and balance.
本文描述了一种肌电图（EMG）驱动的神经肌肉电刺激（NMES）循环系统的设计。它利用积极参与的中风幸存者的实时肌电图作为反馈控制，来驱动循环系统进行康复治疗。用户通过肌电图电极记录的患侧肌肉活动来控制循环系统的速度。此外，还以循环模式向各个肌肉群提供基于肌电图的适应性神经肌肉电刺激，以改善肌肉协调性。用于控制系统的目标肌肉群是患侧腿部的腘绳肌（HS）、胫骨前肌（TA）、股四头肌（QC）、外侧腓肠肌（GL）。使用该系统，对10名慢性中风幸存者进行了20次30分钟的训练，每周训练频率为2 - 4次。在第一次训练前和20次训练完成后，计算了临床评估得分，即FMA_LE、BBS和6MWT。使用该系统后，所有评估得分均有显著改善；FMA_LE（P = 0.0244）、BBS（P = 0.0156）、6MWT（P = 0.0112）和SI（P = 0.0258），表明肌电图驱动的神经肌肉电刺激循环系统在肌肉力量和平衡方面为中风幸存者提供了有效的康复治疗。
