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On Muscle Activation for Improving Robotic Rehabilitation after Spinal Cord Injury

Cheng, Richard and Sui, Yanan and Sayenko, Dimitry and Burdick, Joel W. (2018) On Muscle Activation for Improving Robotic Rehabilitation after Spinal Cord Injury. In: 2018 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS). IEEE , Piscataway, NJ, pp. 798-805. ISBN 9781538680940. http://resolver.caltech.edu/CaltechAUTHORS:20190201-153603256

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Abstract

Spinal cord stimulation (SCS) has recently enabled humans with motor complete spinal cord injury (SCI) to independently stand and recover some lost autonomic function. However, the nature of the recovered motor activity and the interplay between SCS and motor training are not well understood. Understanding the effect of stand training and spinal stimulation on motor activity during bipedal standing is important for designing spinal rehabilitation therapies that seek to combine spinal stimulation and rehabilitative robots. In this study, we examined electromyography (EMG) data gathered from two SCI patients and six healthy subjects as they attempted standing. We analyzed the muscle activation patterns and EMG waveform shape to quantify both the changes in SCI patient motor activity with training, and the differences between healthy motor activity and SCI patient motor activity under stimulation. We also looked for correlations between the similarity in SCI patients' motor activity to healthy subjects and their overall standing ability. We found that good standing in SCI patients does not emulate healthy standing muscle activity. Furthermore, patient stand training heavily influenced motor activation patterns, but not in ways that improved standing ability. These results indicate that current training techniques do not optimally influence motor activity, and robotic rehabilitation strategies for SCI patients should target essential features of motor activity to optimize functional performance, rather than emulate healthy activity.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1109/iros.2018.8593973DOIArticle
Additional Information:© 2018 IEEE. The authors thank Enrico Rejc, Claudia Angeli, and Susan Harkema for collecting and sharing the SCI dataset.
Record Number:CaltechAUTHORS:20190201-153603256
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20190201-153603256
Official Citation:R. Cheng, Y. Sui, D. Sayenko and J. W. Burdick, "On Muscle Activation for Improving Robotic Rehabilitation after Spinal Cord Injury," 2018 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), Madrid, Spain, 2018, pp. 798-805. doi: 10.1109/IROS.2018.8593973
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:92595
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:02 Feb 2019 00:01
Last Modified:02 Feb 2019 00:01

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