Passive activity enhances residual control ability in patients with complete spinal cord injury

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外文摘要：Patients with complete spinal cord injury retain the potential for volitional muscle activity in muscles located below the spinal injury level.However,because of prolonged inactivity,initial attempts to activate these muscles may not effectively engage any of the remaining neurons in the descending pathway.A previous study unexpectedly found that a brief clinical round of passive activity significantly increased volitional muscle activation,as measured by surface electromyography.In this study,we further explored the effect of passive activity on surface electromyographic signals during volitional control tasks among individuals with complete spinal cord injury.Eleven patients with chronic complete thoracic spinal cord injury were recruited.Surface electromyography data from eight major leg muscles were acquired and compared before and after the passive activity protocol.The results indicated that the passive activity led to an increased number of activated volitional muscles and an increased frequency of activation.Although the cumulative root mean square of surface electromyography amplitude for volitional control of movement showed a slight increase after passive activity,the difference was not statistically significant.These findings suggest that brief passive activity may enhance the ability to initiate volitional muscle activity during surface electromyography tasks and underscore the potential of passive activity for improving residual motor control among patients with motor complete spinal cord injury.

外文关键词：

complete spinal cord injurycycle trainingepidural electrical stimulationmotor trainingpassive activityphysiological statespinal cord circuitsurface electromyographyvolitional control task

作者：

Yanqing Xiao、Mingming Gao、Zejia He、Jia Zheng、Hongming Bai、Jia-Sheng Rao、Guiyun Song、Wei Song、Xiaoguang Li

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作者单位：

Beijing Key Laboratory for Biomaterials and Neural Regeneration,Beijing Advanced Innovation Center for Biomedical Engineering,School of Biological Science and Medical Engineering,Beihang University,Beijing,China

Department of Rehabilitation Evaluation,China Rehabilitation Research Center,Beijing,China

Cardiac Center,Beijing Children's Hospital,Capital Medical University,Beijing,China

The State Key Laboratory of Virtual Reality Technology and Systems,Beihang University,Beijing,China

Department of Rehabilitation Engineering,China Rehabilitation Science Institute,Beijing,China

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出版年：

2025

DOI：

10.4103/NRR.NRR-D-23-01812

中国神经再生研究(英文版)

中国康复医学会

中国神经再生研究(英文版)

影响因子：0.902

ISSN：1673-5374

年,卷(期)：2025.20(8)