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Does size (of recording electrodes) matter?
For many years, I have used the Kendall Nutab (ER88007) electrode for my EMGs. It's a disposable, inexpensive, reliable, 14 mm round electrode that attaches with an alligator clip, similar in dimension to the standard bar electodes we all trained on. The manufacturer has discontinued these, and has recommended a replacement electrode that is a18mm x 22mm, rectangle. I typically measure from the center of the electrode to my stimulation site, not the near edge of the electrode.
Does anyone know of a similar small round disposable electrode?
Does anyone know if measuring from the center of the larger electrode will make a difference in the recorded latencies and or the morphology of the waveforms?
Thanks for any input.
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