Electrode Placements

Created Tuesday 25 February 2014

Enhancement of wrist extension

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The stimulation site is found by trial and error where the best compromise between a strong wrist extension and a minimal finger extension. The distance between the electrodes have been varying from 5 to 10 cm. The exact placing is individual and varies from person to person and must be found by trial and error. Precise positioning of stimulation electrodes is very important if a pure wrist extension is desired. Electrode displacement of more than a few millimeters can cause undesired stimulation of finger extensors (Litt)






Hand stimulation

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The stimulation can also be applied via 3 cm outer diameter adhesive electrodes placed over
the first dorsal interosseous muscle and over the pisiformus bone (Fig. 1). For some people this method of stimulation gives a strong flexion of the thumb and slight flexion of the fingers (ref).




Stimulation of the wrist and finger extension in stroke patients

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Stimulation electrodes for simultaneous wrist and finger extension may be placed far apart (figure) or closely spaced over the muscle bulk of the long muscles of the forearm.