The effect of the impedance of a thin hydrogel electrode on sensation during functional electrical stimulation

SHA, N., KENNEY, L. P. J., HELLER, B. W., BARKER, A. T., HOWARD, D. and WANG, W. (2007). The effect of the impedance of a thin hydrogel electrode on sensation during functional electrical stimulation. Medical engineering and physics, 30 (6), 739-746.

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Link to published version:: https://doi.org/10.1016/j.medengphy.2007.07.012

Abstract

Surface functional electrical stimulation results in stimulation of cutaneous receptors and discomfort. The degree of non-uniformity of current distribution in the cutaneous layers in the vicinity of the electrode may influence the sensation experienced. This paper describes the effects on sensation of a thin, high impedance electrode designed to reduce the non-uniformity of current distribution. Sensation associated with stimulation via a self-adhesive electrode with much higher impedance than conventional electrodes was compared with a low impedance electrode in a single-blinded, crossover study. The high impedance electrode does not alter either the current at which sensation is first registered. However, at higher currents, the high impedance electrode allows 9% more current to be passed for an equivalent sensation to that experienced with the conventional electrode. A 28% decrease in discomfort with the use of the high impedance electrode was also reported.

Item Type: Article
Research Institute, Centre or Group - Does NOT include content added after October 2018: Centre for Sport and Exercise Science
Identification Number: https://doi.org/10.1016/j.medengphy.2007.07.012
Page Range: 739-746
Depositing User: Ann Betterton
Date Deposited: 23 Dec 2008
Last Modified: 18 Mar 2021 21:45
URI: https://shura.shu.ac.uk/id/eprint/632

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