Home FOR AUTHORS General Physiology and Biophysics 2011 General Physiology and Biophysics Vol.30, No.1, p.59–65, 2011

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Founded: 1982
ISSN  1338-4325 (online)

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General Physiology and Biophysics Vol.30, No.1, p.59–65, 2011

Title: Transient finite element modeling of functional electrical stimulation
Author: Nenad D. Filipovic, Aleksandar S. Peulic, Nebojsa D. Zdrakovic, Vesna M. Grbovic-Markovic, Aleksandra J. Jurisic-Skevin

Abstract: Transcutaneous functional electrical stimulation is commonly used for strengthening muscle. However, transient effects during stimulation are not yet well explored. The effect of an amplitude change of the stimulation can be described by static model, but there is no differency for different pulse duration. The aim of this study is to present the finite element (FE) model of a transient electrical stimulation on the forearm. Discrete FE equations were derived by using a standard Galerkin procedure. Different tissue conductive and dielectric properties are fitted using least square method and trial and error analysis from experimental measurement.
This study showed that FE modeling of electrical stimulation can give the spatial-temporal distribution of applied current in the forearm. Three different cases were modeled with the same geometry but with different input of the current pulse, in order to fit the tissue properties by using transient FE analysis. All three cases were compared with experimental measurements of intramuscular voltage on one volunteer.

Keywords: Functional electrical stimulation — Transient finite element modeling — Tissue permittivity and conductivity — Fitting tissue properties
Year: 2011, Volume: 30, Issue: 1 Page From: 59, Page To: 65

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