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A Novel Approach to the Analysis of Altered Human Motor Synergistic Structures
Jingyao Chen1; Chen Wang2; Ningcun Xu1; Zeng-Guang Hou2; Liang Peng2; Pingye Deng3; Pu Zhang4; Chutian Zhang1
Conference NameIEEE International Conference on Development and Learning (ICDL)
Conference DateNovember 9-11
Conference PlaceMacau, China

Motor synergy is considered as a motor control strategy deployed by the central nervous system (CNS), and it can be altered due to ageing, disease and injury. A timely assessment and analysis of altered motor synergy patterns will be helpful for the motor rehabilitation process. However, current research has mainly focused on the implementation of automated assessment scales. While the mechanism of the motor synergy structure alteration is not well understood yet. In this study, we proposed an approach to the analysis of altered human motor synergistic structures. By collecting and preprocessing the 3-dimensional motion data from 30 participants (including 15 stroke patients and 15 healthy individuals), synergistic structure features were extracted. We obtain the spatiotemporal vectors of motion by the nonnegative matrix factorization. These vectors were clustered using K-means and matched with the scalar product. The similarity and specificity clustering pairs were obtained through Kuhn-Munkres Algorithm. The above results revealed that the structure of human motor synergy was greatly altered after stroke, and some new synergistic patterns with commonalities emerged during patients' movements. This study presents a new method to identify specific patterns of motor synergy arising from disease-altered biomechanics and central nervous system, providing new targeted protocols for rehabilitation assessment.

Indexed ByEI
Sub direction classification机器学习
planning direction of the national heavy laboratory受人机理启发的类脑控制和类肌肉骨骼系统理论
Paper associated data
Document Type会议论文
Corresponding AuthorChen Wang; Zeng-Guang Hou
Affiliation1.Macau University of Science and Technology
2.State Key Laboratory of Multimodal Artifcial Intelligence Systems, Institute of Automation, Chinese Academy of Sciences
3.Institute of Analysis and Testing, Beijing Academy of Science and Technology
4.Rehabilitation Evaluation, China Rehabilitation Research Center
Corresponding Author AffilicationInstitute of Automation, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Jingyao Chen,Chen Wang,Ningcun Xu,et al. A Novel Approach to the Analysis of Altered Human Motor Synergistic Structures[C],2023.
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