Recognition of lower limb muscle EMG patterns by using neural networks during the postural balance control

Jaehoon Jeong, Wonhak Cho, Yongchul Kim, Hyeonki Choi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

The purpose of the study was to recognize EMG signal patterns of lower limb muscles by using neural networks during the recovery of postural balance of human body. Surface electrodes were attached to several lower limb muscles. EMG signals were collected during the postural balance recovery process after a perturbation without permitting compensatory stepping. A waist pulling system was used to apply transient perturbations in five horizontal directions. The EMG signals of fifty repetitions of five motions were analyzed for 10 subjects. Twenty features were extracted from EMG signals of one event. By using neural networks, EMG signals were classified into five categories, such as forward perturbation, backward perturbation, lateral perturbation and two oblique perturbations. As results, motions were recognized with mean success rates of 75 percent. With the neural network classifier of this study, the EMG patterns of lower limb muscles during the recovery of postural balance could be classified with high accuracy of recognition.

Original languageEnglish
Title of host publication3rd Kuala Lumpur International Conference on Biomedical Engineering 2006
EditorsFatimah Ibrahim, Noor Azuan Abu Osman, Juliana Usman, Nahrizul Adib Kadri
PublisherSpringer Verlag
Pages82-85
Number of pages4
ISBN (Electronic)9783540680161
DOIs
StatePublished - 2007
Event3rd Kuala Lumpur International Conference on Biomedical Engineering, Biomed 2006 - Kuala Lumpur, Malaysia
Duration: 11 Dec 200614 Dec 2006

Publication series

NameIFMBE Proceedings
Volume15
ISSN (Print)1680-0737
ISSN (Electronic)1433-9277

Conference

Conference3rd Kuala Lumpur International Conference on Biomedical Engineering, Biomed 2006
Country/TerritoryMalaysia
CityKuala Lumpur
Period11/12/0614/12/06

Keywords

  • EMG
  • Lower limb muscle
  • Pattern recognition
  • Postural balance

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