中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
sEMG-based continuous estimation of joint angles of human legs by using BP neural network

文献类型:期刊论文

作者Zhang, Feng1; Li, Pengfeng1; Hou, Zeng-Guang1; Lu, Zhen2; Chen, Yixiong1; Li, Qingling1; Tan, Min1
刊名NEUROCOMPUTING
出版日期2012-02-15
卷号78期号:1页码:139-148
关键词sEMG Rehabilitation BP SCI
英文摘要In this paper, we propose an mth order nonlinear model to describe the relationship between the surface electromyography (sEMG) signals and the joint angles of human legs, in which a simple BP neural network is built for the model estimation. The inputs of the model are sEMG time series that have been processed, and the outputs of the model are the joint angles of hip, knee, and ankle. To validate the effectiveness of the BP neural network, six able-bodied people and four spinal cord injury (SCI) patients participated in the experiment. Two movement modes including the treadmill exercise and the leg extension exercise at different speeds and different loads were respectively conducted by the able-bodied individuals, and only the treadmill exercise was selected for the SCI patients. Seven channels of sEMG from seven human leg muscles were recorded and three joint angles including the hip joint, knee joint and the ankle joint were sampled simultaneously. The results present that this method has a good performance on joint angles estimation by using sEMG for both able-bodied subjects and SCI patients. The average angle estimation root-mean-square (rms) error for leg extension exercise is less than 9 degrees, and the average rms error for treadmill exercise is less than 6 degrees for all the able-bodied subjects. The average angle estimation rms error of the SCI patients is even smaller (less than 5 degrees) than that of the able-bodied people because of a smaller movement range. This method would be used to rehabilitation robot or functional electrical stimulation (FES) for active rehabilitation of SCI patients or stroke patients based on sEMG signals. (C) 2011 Elsevier B.V. All rights reserved.
WOS标题词Science & Technology ; Technology
类目[WOS]Computer Science, Artificial Intelligence
研究领域[WOS]Computer Science
关键词[WOS]SURFACE EMG ; SIGNAL BANDWIDTH ; MUSCLE ; MODEL ; ROBOT ; CLASSIFICATION ; ARM
收录类别SCI
语种英语
WOS记录号WOS:000298528200017
源URL[http://ir.ia.ac.cn/handle/173211/3513]  
专题自动化研究所_复杂系统管理与控制国家重点实验室_先进机器人控制团队
作者单位1.Chinese Acad Sci, Inst Automat, State Key Lab Intelligent Control & Management Co, Beijing 100190, Peoples R China
2.China Rehabil Res Ctr, Dept SCI Surg, Beijing 100068, Peoples R China
推荐引用方式
GB/T 7714
Zhang, Feng,Li, Pengfeng,Hou, Zeng-Guang,et al. sEMG-based continuous estimation of joint angles of human legs by using BP neural network[J]. NEUROCOMPUTING,2012,78(1):139-148.
APA Zhang, Feng.,Li, Pengfeng.,Hou, Zeng-Guang.,Lu, Zhen.,Chen, Yixiong.,...&Tan, Min.(2012).sEMG-based continuous estimation of joint angles of human legs by using BP neural network.NEUROCOMPUTING,78(1),139-148.
MLA Zhang, Feng,et al."sEMG-based continuous estimation of joint angles of human legs by using BP neural network".NEUROCOMPUTING 78.1(2012):139-148.

入库方式: OAI收割

来源:自动化研究所

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