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Brazilian Journal of Otorhinolaryngology

Print version ISSN 1808-8694


CARNAUBA, Aline Tenório Lins et al. Influence of gender on the vestibular evoked myogenic potential. Braz. j. otorhinolaryngol. (Impr.) [online]. 2011, vol.77, n.2, pp.245-248. ISSN 1808-8694.

There is no consensus on the relevance of factors that influence gender differences in the behavior of muscles. Some studies have reported a relationship between muscle tension and amplitude of the vestibular evoked myogenic potential; others, that results depend on which muscles are studied or on how much load is applied. AIMS: This study aims to compare vestibular evoked myogenic potential parameters between genders in young individuals. METHODS: Eighty young adults were selected - 40 men and 40 women. Stimuli were averaged tone-bursts at 500 Hz, 90 dBHL intensity, and a 10-1000 Hz bandpass filter with amplification of 10-25 microvolts per division. The recordings were made in 80 ms windows. STUDY TYPE: An experimental and prospective study. RESULTS: No significant gender differences were found in wave latency - p = 0.19 and p = 0.50 for waves P13 and N23, respectively. No differences were found in amplitude values - p = 0.28 p = 0.40 for waves P13 and N23, respectively. CONCLUSION: There were no gender differences in latency and amplitude factors; the sternocleidomastoid muscle strain was monitored during the examination.

Keywords : evoked potentials; auditory; evoked potentials, motor; muscle tonus; vestibule, labyrinth.

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