1. A Sensor-Based Multichannel FES System to Control Knee Joint and Reduce Stance Phase Asymmetry in Post-Stroke Gait
- Author
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Sijobert, Benoît, Azevedo Coste, Christine, Pontier, Joanna, Graf, Sahara, Fattal, Charles, Contrôle Artificiel de Mouvements et de Neuroprothèses Intuitives (CAMIN), Inria Sophia Antipolis - Méditerranée (CRISAM), Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria), Institut Saint-Pierre, Centre de Rééducation et de Réadaptation Fonctionnelles de La Chataigneraie [Menucourt] (CRRF), GICL, USSAP Perpignan, Groupe Hospitalier de l'Institut Catholique de Lille (GHICL), Université catholique de Lille (UCL), and Centre Bouffard-Vercelli
- Subjects
Knee Joint ,motion analysis ,neuro-rehabilitation ,Electric Stimulation Therapy ,lcsh:Chemical technology ,Electric Stimulation ,Article ,functional electrical stimulation ,[SPI.AUTO]Engineering Sciences [physics]/Automatic ,Stroke ,Humans ,lcsh:TP1-1185 ,human activities ,Gait ,Gait Disorders, Neurologic ,ComputingMilieux_MISCELLANEOUS - Abstract
International audience; Most of the studies using functional electrical stimulation (FES) in gait rehabilitation have been focused on correcting the drop foot syndrome. Using FES to control the knee joint in individuals with central nervous system (CNS) disorders could also play a key role in gait recovery: spasticity decrease, higher range of motion, positive effect on balance, limiting hyperextension and flexion in stance phase, reducing joint overload, etc. In stance phase, an accurate timing and a fine tuning of stimulation parameters are however required to provide a proper control of the knee stimulation while ensuring a safe and efficient support. In this study, 11 participants were equipped with inertial measurements units (IMU) and foot pressure insoles after supratentorial ischemic or hemorrhagic stroke, informing on knee angle and gait events used to online adapt FES during a 10 m walking protocol. Asymmetry of stance time and weight bearing were monitored as well as gait quality and physiological cost through a series of relevant markers. Vertical trunk motion has been significantly reduced during gait with FES (p-value = 0.038). Despite no significant improvement of stance phase asymmetry has been found, this preliminary work shows evidence of promising technical and rehabilitative potentials of a sensor-based multichannel FES system to control knee joint in post-stroke gait.
- Published
- 2021