Analysis of muscle activation patterns during walking in patients with foot drop: Insights for the design of an advanced FES controller

Aikaterini D. Koutsou, Fady Alnajjar, Sergio Lerma Lara, Beatriz Moral, Riadh Zaier, Juan C. Moreno

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This study focuses on the analysis of human walking after stroke for the design of a Functional Electrical Stimulation (FES) strategy for foot drop correction. Our approach is based on the analysis of muscle activation patterns from electromyography and ankle joint kinematic data. The objective of this work was to study the activation of the muscles of the lower leg during walking in three different walking speeds in patients affected by stroke with a foot drop syndrome. The purpose was to find any differences in muscle activation duration and intensity that should be taken into account in the definition of the muscle stimulation patterns of an FES foot drop controller. The results showed that plantar flexor muscles should also be included in our FES controller, especially at the end of the stance phase. The results confirmed a clear relation between walking speed and muscle activation. A novel concept design of an FES foot drop controller is proposed, with inputs as the walking speed of the subject and instantaneous gait phase extracted from inertial measurement units.

Original languageEnglish
Title of host publication2019 Advances in Science and Engineering Technology International Conferences, ASET 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538682715
DOIs
Publication statusPublished - May 14 2019
Event2019 Advances in Science and Engineering Technology International Conferences, ASET 2019 - Dubai, United Arab Emirates
Duration: Mar 26 2019Apr 10 2019

Publication series

Name2019 Advances in Science and Engineering Technology International Conferences, ASET 2019

Conference

Conference2019 Advances in Science and Engineering Technology International Conferences, ASET 2019
CountryUnited Arab Emirates
CityDubai
Period3/26/194/10/19

Keywords

  • control
  • FES
  • foot drop
  • stroke
  • walking

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Artificial Intelligence
  • Computer Networks and Communications
  • Energy Engineering and Power Technology
  • Civil and Structural Engineering
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Ceramics and Composites

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