sEMG Based Gait Phase Recognition for Children with Spastic Cerebral Palsy

Annals of Biomedical Engineering
Peng-Na WeiMing Wu

Abstract

The goal of this study was to examine the optimal strategies for the recognition of gait phase based on surface electromyogram (sEMG) of leg muscles while children with cerebral palsy (CP) walked on a treadmill. Ten children with CP were recruited to participate in this study. sEMG from eight leg muscles and leg position signals were recorded while subjects walked on a treadmill. The position signals of left and right legs were used to develop a five gait sub-phases classifier, i.e., mid stance, terminal stance, pre-swing, mid swing, and terminal swing. Seven feature sets of sEMG signals were tested in recognizing the five gait sub-phases of children with CP. Results from this study indicated that the recognition performance of mean absolute value and zero crossing was better than that with other feature sets when using support vector machine (average classification accuracy was 89.40%). Further, we found that the performance of gait phase recognition is relatively better in pre-swing than other sub-phases, and the performance of gait phase recognition is relatively poorer in mid-swing than other sub-phases. Results from this study may be used to develop an intention-driven robotic gait training system/paradigm for assisting wa...Continue Reading

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Citations

Sep 23, 2020·Annals of Biomedical Engineering·M Hassan JahanandishKenneth Hoyt
Oct 25, 2020·Sensors·Rogelio Gámez DíazAbdulmotaleb El Saddik

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Methods Mentioned

BETA
amputation
feature extraction

Software Mentioned

LabView
Matlab
LIBSVM

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