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Acta Cirurgica Brasileira

Print version ISSN 0102-8650On-line version ISSN 1678-2674


SOMENSI, Danusa Neves et al. Does the type of electrode affect the electromyoneurographic parameters in rats?. Acta Cir. Bras. [online]. 2019, vol.34, n.3, e201900304.  Epub Mar 18, 2019. ISSN 1678-2674.


To evaluate if the type of electrode (needle vs. surface) affects the electromyoneurography parameters in rats.


Twenty male rats were anesthetized, then compound muscle action potential were recorded using a Neuropack S1 MEB- 9400©. All animals were submitted to two electroneuromyography analysis: first with surface electrode and then by needle electrode. We evaluated the latency, amplitude, duration and area of the negative peak of the gastrocnemius and cranial tibial muscles.


There were no significant differences between the groups in the mean of duration, latency, amplitude or area of the negative peak in gastrocnemius and cranial tibial muscles.


The type of electrode does not affect the electroneuromyography parameters.

Keywords : Neurophysiology; Neural Conduction; Experimental Development; Rats.

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