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A 3D transient model for transcutaneous functional electrical stimulation

Author(s):

A. Kuhn, T. Keller
Conference/Journal:

International Functional Electrical Stimulation Society Conference, Montreal, Canada, vol. 10, pp. 385-7
Abstract:

Knowing the 3D current and potential distribution is important for more precise stimulation in transcutaneous functional electrical stimulation. Currently static models can describe the effect of an amplitude change of the stimulation, but the result is the same for different pulse durations. We have developed a transient quasistatic finite element (FE) model that simulates the potential distribution inside the skin, fat, muscle and bone layers of the upper arm. The different tissues are defined by their conductive and dielectric properties. The inclusion of the dielectric properties accounts for capacitive effects in the different tissue layers. This factor has been neglected in earlier studies where only static simulations using the Poisson equation were performed. Our simulation results compared well to external and intramuscular voltage measurements that were performed on three human volunteers. The experimental results showed that the dielectric properties of the skin have to be included in simulations whereas the dielectric properties of the muscle might be neglected.

Year:

2005
Type of Publication:

(01)Article
Supervisor:

M. Morari

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% Autogenerated BibTeX entry
@InProceedings { KuhKel:2005:IFA_2137,
    author={A. Kuhn and T. Keller},
    title={{A 3D transient model for transcutaneous functional
	  electrical stimulation}},
    booktitle={International Functional Electrical Stimulation Society
	  Conference},
    pages={385--7},
    year={2005},
    address={Montreal, Canada},
    month=jul,
    url={http://control.ee.ethz.ch/index.cgi?page=publications;action=details;id=2137}
}
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