Variation of Muscle Coactivation Patterns in Chronic Stroke During Robot-Assisted Elbow Training

Hu, Xiao; Tong, Kai-Yu; Song, Rong; Tsang, Vincent S.; Leung, Penny O.; Li, Le

doi:10.1016/j.apmr.2007.05.006

Cited by 87 publications

(103 citation statements)

References 28 publications

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“…Improvements in muscle coordination revealed by muscle co-activating patterns and in general motor outcomes measured by Fugl-Meyer Assessment (FMA) 11 were found after the EMG-driven robot-assisted training on both elbow and wrist joints 9,10 .…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the recent development in rehabilitation robots has been worked towards the active-assisted control strategies for interactive rehabilitation treatment 8 . In our previous work, an electromyography (EMG)-driven rehabilitation robot was developed for interactive physical training on the elbow and wrist joints of persons with chronic stroke 1,9,10 . In this robotic system, EMG signals were used as representation of the voluntary motor intention from subjects to continuously drive the robot Hu, X. L., Tong, K. Y., Song, R., Zheng, X. J., & Leung, W. W. (2009).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Comparison Between Electromyography-Driven Robot and Passive Motion Device on Wrist Rehabilitation for Chronic Stroke

Tong

Song

et al. 2009

Neurorehabil Neural Repair

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175

146

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Comparison Between Electromyography-Driven Robot and Passive Motion Device on Wrist Rehabilitation for Chronic Stroke

Tong

Song

et al. 2009

Neurorehabil Neural Repair

Self Cite

175

146

View full text Add to dashboard Cite

show abstract

“…For the EMG group, in each training session, each subject was seated with the paretic arm mounted on the robotic system developed in our previous work as specified in Fig 1 [10][11][12]. EMG signals were recorded from the muscles of the triceps brachii (TRI, lateral head), biceps brachii (BIC), flexor carpi radialis (FCR), and extensor carpi radialis (ECR).…”

Section: Robot-assistedmentioning

confidence: 99%

“…In the rehabilitation of the upper limb, many stroke survivors experienced reasonable motor recovery of their proximal upper limb (shoulder and elbow) but limited wrist recovery at the distal [8,9]. In our previous work, an electromyography (EMG)-driven rehabilitation robot has been developed for interactive physical training on the respective elbow and wrist joints of stroke subjects [10][11][12]. Significant motor improvements were found in the trained upper limbs after the robot-assisted training.…”

mentioning

confidence: 99%

Robot-assisted wrist training for chronic stroke: A comparison between electromyography (EMG) driven robot and passive motion

Tong

Song

et al. 2008

2008 2nd IEEE RAS &Amp; EMBS International Conference on Biomedical Robotics and Biomechatronics

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Abstract-The motor recovery procedure during robot-assisted wrist rehabilitation for persons after stroke has not been well studied previously. In this work, we carried out a comparative study on the training effects on 10 hemiplegic persons with chronic stroke between a wrist treatment assisted by an electromyography (EMG)-driven robotic system (interactive treatment, n=5, EMG group) and a wrist treatment assisted by a clinical robot system with continuous passive motion (n=5, passive group). Significant decreases (P<0.05) in muscle spasticity were observed at the wrist joint in both the EMG and passive groups; and reduced muscle spasticity at the elbow joint were also obtained in the EMG group (P<0.05). These spasticity decreases were associated with the reduction of EMG activation levels during the training. The EMG-driven robot-assisted training also improved the muscle coordination capability of the persons after stroke.

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“…Moreover, muscle force is produced after a delay (30-60 ms) from the muscle activation [32,33] and the kinematic variables are even more delayed from the force, hindering spontaneous reaction of the robot in response to the motor intention. Because EMG can be derived from a specific target muscle and represents muscle activation with little delay, the EMG-driven robotic devices are developed to facilitate the interactive physical training of the elbow, wrist, and hand, which was shown to be effective [34][35][36][37][38][39].…”

Section: Introductionmentioning

confidence: 99%

Electromyogram-controlled assistive exercise for the motor recovery of shoulder in chronic hemiplegia: A pilot study

Park

Kim

Kwon

et al. 2015

BME

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Abstract. Correct-active-repetitive exercise is important for the motor recovery in hemiplegics. The present study hypothesizes that the electromyogram (EMG)-controlled assistance of motion would be an effective implementation of the concept for the rehabilitation of the hemiplegic shoulder, even in chronic patients. This study aims to investigate the feasibility of the suggested method. The motor intention is derived from the EMG of the shoulder muscles and the shoulder movement (flexion and abduction) is assisted by an electro-mechanical system only when the motor intention (EMG amplitude) exceeded the threshold. Twelve patients in the chronic stage of stroke participated in this pilot study. The EMGcontrolled assistive exercise lasts for two weeks, 20 min per day and 5 days a week. The active range of motion in both abduction and flexion increases significantly after the intervention (p < 0.01). The maximum torque increases in both directions, and the increase is significant in the abduction (p < 0.01). The Fugl-Myer motor assessment score is improved greatly in the shoulder-related items (p < 0.01), but neither in the shoulder-unrelated items of the upper extremity (p = 0.13) nor in the lower extremity items (p = 0.19). This pilot study demonstrates that EMG-controlled assistive exercise can improve shoulder motor functions related to selected muscles and the suggested method is promising for the motor recovery of the shoulder in chronic hemiplegia.

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Variation of Muscle Coactivation Patterns in Chronic Stroke During Robot-Assisted Elbow Training

Cited by 87 publications

References 28 publications

A Comparison Between Electromyography-Driven Robot and Passive Motion Device on Wrist Rehabilitation for Chronic Stroke

A Comparison Between Electromyography-Driven Robot and Passive Motion Device on Wrist Rehabilitation for Chronic Stroke

Robot-assisted wrist training for chronic stroke: A comparison between electromyography (EMG) driven robot and passive motion

Electromyogram-controlled assistive exercise for the motor recovery of shoulder in chronic hemiplegia: A pilot study

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