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Finite Element Modeling Validation of Energy-Optimal Electrical Stimulation Waveform

Author(s):

S. Jezernik, T. Sinkjaer
Conference/Journal:

International Functional Electrical Stimulation Society Conference, pp. 346-348
Abstract:

In this study we have validated our earlier theoretical result that an exponentially rising current stimulation waveform enables excitation of nervous and muscular tissue at lowest possible energy. The validation was performed via 3D FEM (finite element modeling) of an upper limb, surface stimulation electrodes, and a 1D FEM of a nerve fiber located within the upper limb. It can be concluded that the influence of surface stimulation and body inhomogenities produces only a distortion of the amplitude and spatial distribution of the extracellular potential generated by the injected current, however, that an appropriate exponentially rising waveform generates the same spatially localized peak membrane potential as the corresponding rectangular stimulation but at a substantially lower stimulation energy. At the end of this article we also present an electronic circuit diagram that realizes the energy-optimal stimulation.

Year:

2005
Type of Publication:

(01)Article
Supervisor:



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% Autogenerated BibTeX entry
@InProceedings { JezSin:2005:IFA_2175,
    author={S. Jezernik and T. Sinkjaer},
    title={{Finite Element Modeling Validation of Energy-Optimal
	  Electrical Stimulation Waveform}},
    booktitle={International Functional Electrical Stimulation Society
	  Conference},
    pages={346--348},
    year={2005},
    address={},
    month=jul,
    url={http://control.ee.ethz.ch/index.cgi?page=publications;action=details;id=2175}
}
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