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http://hdl.handle.net/10397/7151
| Title: | A comparison between electromyography-driven robot and passive motion device on wrist rehabilitation for chronic stroke | Authors: | Hu, X Tong, KYR Song, R Zheng, XJ Leung, WFW |
Issue Date: | Oct-2009 | Source: | Neurorehabilitation and neural repair, Oct. 2009, v. 23, no. 8, p. 837-846 | Abstract: | Background: The effect of using robots to improve motor recovery has received increased attention, even though the most effective protocol remains a topic of study. Objective: The objective was to compare the training effects of treatments on the wrist joint of subjects with chronic stroke with an interactive rehabilitation robot and a robot with continuous passive motion. Methods: This study was a single-blinded randomized controlled trial with a 3-month follow-up. Twenty-seven hemiplegic subjects with chronic stroke were randomly assigned to receive 20-session wrist training with a continuous electromyography (EMG)-driven robot (interactive group, n = 15) and a passive motion device (passive group, n = 12), completed within 7 consecutive weeks. Training effects were evaluated with clinical scores by pretraining and posttraining tests (Fugl-Meyer Assessment [FMA] and Modified Ashworth Score [MAS]) and with session-by-session EMG parameters (EMG activation level and co-contraction index). Results: Significant improvements in FMA scores (shoulder/elbow and wrist/hand) were found in the interactive group (P < .05). Significant decreases in the MAS were observed in the wrist and elbow joints for the interactive group and in the wrist joint for the passive group (P < .05). These MAS changes were associated with the decrease in EMG activation level of the flexor carpi radialis and the biceps brachii for the interactive group (P < .05). The muscle coordination on wrist and elbow joints was improved in the interactive groups in the EMG co-contraction indexes across the training sessions (P < .05). Conclusions: The interactive treatment improved muscle coordination and reduced spasticity after the training for both the wrist and elbow joints, which persisted for 3 months. The passive mode training mainly reduced the spasticity in the wrist flexor. |
Keywords: | Electromyography Stroke Robot Wrist |
Publisher: | SAGE Publications | Journal: | Neurorehabilitation and neural repair | ISSN: | 1545-9683 | EISSN: | 1552-6844 | DOI: | 10.1177/1545968309338191 | Rights: | © 2009 The Author(s) The final, definitive version of the article is available on SAGE Journals (http://online.sagepub.com) is located at http://dx.doi.org/10.1177/1545968309338191 |
| Appears in Collections: | Journal/Magazine Article |
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| Hu_comparison_electromyography_driven.pdf | Pre-published version | 305.52 kB | Adobe PDF | View/Open |
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