title: Advanced Myoelectric Control for Robotic Hand-Assisted Training: Outcome from a Stroke Patient.
abstract: A hand exoskeleton driven by myoelectric pattern recognition was designed for stroke rehabilitation. It detects and recognizes the user's motion intent based on electromyography (EMG) signals, and then helps the user to accomplish hand motions in real time. The hand exoskeleton can perform six kinds of motions, including the whole hand closing/opening, tripod pinch/opening, and the "gun" sign/opening. A 52-year-old woman, 8 months after stroke, made 20× 2-h visits over 10 weeks to participate in robot-assisted hand training. Though she was unable to move her fingers on her right hand before the training, EMG activities could be detected on her right forearm. In each visit, she took 4× 10-min robot-assisted training sessions, in which she repeated the aforementioned six motion patterns assisted by our intent-driven hand exoskeleton. After the training, her grip force increased from 1.5 to 2.7 kg, her pinch force increased from 1.5 to 2.5 kg, her score of Box and Block test increased from 3 to 7, her score of Fugl-Meyer (Part C) increased from 0 to 7, and her hand function increased from Stage 1 to Stage 2 in Chedoke-McMaster assessment. The results demonstrate the feasibility of robot-assisted training driven by myoelectric pattern recognition after stroke.
authors.affiliation: Department of Physical Medicine and Rehabilitation, University of Texas Health Science Center at Houston, TIRR Memorial Hermann Research Center , Houston, TX , USA.
authors.forename: Zhiyuan
authors.initials: Z
authors.lastname: Lu
authors.affiliation: Division of Biomedical Engineering, Department of Electronic Engineering, The Chinese University of Hong Kong , Hong Kong , Hong Kong.
authors.forename: Kai-Yu
authors.initials: KY
authors.lastname: Tong
authors.affiliation: Department of Physical Medicine and Rehabilitation, University of Texas Health Science Center at Houston, TIRR Memorial Hermann Research Center , Houston, TX , USA.
authors.forename: Henry
authors.initials: H
authors.lastname: Shin
authors.affiliation: Department of Physical Medicine and Rehabilitation, University of Texas Health Science Center at Houston, TIRR Memorial Hermann Research Center , Houston, TX , USA.
authors.forename: Sheng
authors.initials: S
authors.lastname: Li
authors.affiliation: Department of Physical Medicine and Rehabilitation, University of Texas Health Science Center at Houston, TIRR Memorial Hermann Research Center, Houston, TX, USA; Guangdong Work Injury Rehabilitation Center, Guangzhou, China.
authors.forename: Ping
authors.initials: P
authors.lastname: Zhou
keywords: case report; electromyography; hand exoskeleton; myoelectric pattern recognition; rehabilitation