Spinal and cortical potentials evoked by tibial nerve stimulation in humans: effects of sex, age and height.

A. Romani, R. Bergamaschi, M. Versino, L. Delnevo, R. Callieco, V. Cosi

Research output: Contribution to journalArticlepeer-review

Abstract

Somatosensory evoked potentials by posterior tibial nerve stimulation at the ankle were performed in 74 healthy volunteers (36 females and 38 males) aged 14-76 years. Cortical potentials were obtained in all subjects and spinal potentials (N22) in 71 subjects. All parameters were related to subject's age, height and sex. Sex influenced only P40-N50 amplitude, which was greater in females. All latencies of spinal and cortical components increased in a similar manner with subject's height (about 0.16-0.18 ms per cm), whereas the N22-P40 interpeak latency was independent from height, but related to T12-Cz distance. Absolute latencies of the spinal and of most cortical components, but not interpeak latencies, increased with subject's age (about 0.06-0.09 ms per year). The parameters to compute normative data (according to univariate or bivariate regression models) are furnished. Limits of right-left differences are reported.

Original languageEnglish
Pages (from-to)691-698
Number of pages8
JournalBollettino della Societa Italiana di Biologia Sperimentale
Volume68
Issue number11
Publication statusPublished - Nov 1992

ASJC Scopus subject areas

  • Medicine(all)

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