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Electromagn Biol Med. 2017;36(3):306-314. doi: 10.1080/15368378.2017.1354015. Epub 2017 Jul 31.

Influence of electrodes on the 448 kHz electric currents created by radiofrequency: A finite element study.

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a Instituto de Magnetismo Aplicado (ADIF-UCM-CSIC), Las Rozas de Madrid, Spain and Departamento de FĂ­sica de Materiales , Universidad Complutense de Madrid , Madrid , Spain.
b Clinica Medyr (Sports Medicine and Rehabilitation) , Madrid , Spain.


Radiofrequency is a technology used in physical rehabilitation by physicians and physiotherapists for more than fifteen years, although there exist doubts on how it works. Indiba is a particular method that applies a voltage difference of 448 KHz between two electrodes, creating an electric current between them. These electrodes are an active one that is placed on different areas of the body and a passive one that is left on the same position during the treatment. There are two different types of active electrodes: the capacitive one and the resistive one. In this paper, it has been studied how the different electrodes affect the current density inside the body and thus how they affect the efficacy of the treatment. It shows how finite element calculations should help physicians in order to better understand its behavior and improve the treatments.


Radiofrequency; electric current density; electrodes; therapy

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