The Therapeutic Effects of Myoelectrically Controlled Robotic System for Persons after Stroke-A Pilot Study

Song, Ruyao; Tong, Kin‐Fai; Hu, Xiangyu; Tsang, S. F.; Li, L.G.

doi:10.1109/iembs.2006.4398561

Cited by 5 publications

(5 citation statements)

References 8 publications

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“…The additional intention control through continuous myoelectric control could provide more interaction during the whole motion, which might be beneficial in promoting the restoration of motor functions for patients after stroke. Our pilot study had reported promising therapeutic effects of a myoelectrically controlled robotic system in improving muscle strength and extension range in three subjects [30]. In this present study, eight subjects after stroke were recruited for statistical analysis to evaluate the effects of training with a continuous myoelectrically controlled robotic system.…”

Section: Introductionmentioning

confidence: 92%

Assistive Control System Using Continuous Myoelectric Signal in Robot-Aided Arm Training for Patients After Stroke

Song

Tong

et al. 2008

IEEE Trans. Neural Syst. Rehabil. Eng.

162

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In some stroke rehabilitation programs, robotic systems have been used to aid the patient to train. In this study, a myoelectrically controlled robotic system with 1 degree-of-freedom was developed to assist elbow training in a horizontal plane with intention involvement for people after stroke. The system could provide continuous assistance in extension torque, which was proportional to the amplitude of the subject's electromyographic (EMG) signal from the triceps, and could provide resistive torques during movement. This study investigated the system's effect on restoring the upper limb functions of eight subjects after chronic stroke in a twenty-session rehabilitation training program. In each session, there were 18 trials comprising different combinations of assistive and resistive torques and an evaluation trial. Each trial consisted of five cycles of repetitive elbow flexion and extension between 90 degrees and 0 degrees at a constant velocity of 10 degrees/s. With the assistive extension torque, subjects could reach a more extended position in the first session. After 20 sessions of training, there were statistically significant improvements in the modified Ashworth scale, Fugl-Meyer scale for shoulder and elbow, motor status scale, elbow extension range, muscle strength, and root mean square error between actual elbow angle and target angle. The results showed that the twenty-session training program improved upper limb functions.

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Section: Introductionmentioning

confidence: 92%

Assistive Control System Using Continuous Myoelectric Signal in Robot-Aided Arm Training for Patients After Stroke

Song

Tong

et al. 2008

IEEE Trans. Neural Syst. Rehabil. Eng.

162

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“…Patients and doctors hence can seek advice online from experienced rehabilitation specialist distantly. In addition, a growing number of telerehabilitation technologies are emerged in China, such as computer aided rehabilitation evaluation system based on the neural function assessment scale, cognitive rehabilitation training system based on virtual reality technology, exoskeleton remote rehabilitation system based on browser/server structure and rehabilitation robotics [5][6][7][8][9][10][11][12]. This indicates that telerehabilitation technology is receiving a growing attention in China.…”

Section: Findings and Discussionmentioning

confidence: 99%

The development of telerehabilitation in China: a systematic survey

Pan¹,

Jie²,

Zhu³

et al. 2015

Int J Integr Care

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“…Many researchers have designed some exoskeleton systems, and used EMG signals as control source to assist the corresponding joint movements [7] [8]. The use of myoelectrically-controlled robot-aided therapy for subjects after stroke has so far been reported in an EMG triggered 'on-off' control [9] and proportional EMG control [10]. A sensorimotor integration theory has been applied to explain that the voluntary efferent output as well as the afferent sensor input was helpful to promote the reorganization of the brain [15].…”

Section: Introduction S Troke Is a Primary Cause Of Serious Disabimentioning

confidence: 99%

Myoelectrically Controlled Robotic System That Provide Voluntary Mechanical Help for Persons after Stroke

Song

Tong

et al. 2007

2007 IEEE 10th International Conference on Rehabilitation Robotics

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-This study described the operation of the myoelectrically controlled robotic system designed to assist wrist movement in a horizontal plane for patients after stroke. Electromyographic (EMG) signals from flexor carpi radialis (FCR), extensor carpi radialis (ECR) detecting subject's intention are used to control the mechanical assistance from the robotic system either to assist wrist flexion and wrist extension. This study had recruited five subjects after stroke. The results revealed that the range of motion (ROM) in the five subjects increased with the assistance of the myoelectrically controlled robotic system. The amplitude of agonist EMG signal decreased with the increase of assistance, which might reflect less effort was needed for the subject to perform the movement. This study demonstrates that it is feasible to apply myoelectrically controlled robotic system to provide substantial external torque to the affected wrist joint for subjects after stroke. Its therapeutic effect will be further investigated during stroke rehabilitation.

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The Therapeutic Effects of Myoelectrically Controlled Robotic System for Persons after Stroke-A Pilot Study

Cited by 5 publications

References 8 publications

Assistive Control System Using Continuous Myoelectric Signal in Robot-Aided Arm Training for Patients After Stroke

Assistive Control System Using Continuous Myoelectric Signal in Robot-Aided Arm Training for Patients After Stroke

The development of telerehabilitation in China: a systematic survey

Myoelectrically Controlled Robotic System That Provide Voluntary Mechanical Help for Persons after Stroke

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