Achilles tendon vibration-induced changes in plantar flexor corticospinal excitability

Thomas Lapole*, John Temesi, Philippe Gimenez, Pierrick J. Arnal, Guillaume Y. Millet, Michel Petitjean

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Daily Achilles tendon vibration has been shown to increase muscle force, likely via corticospinal neural adaptations. The aim of the present study was to determine the extent by which corticospinal excitability is influenced during direct Achilles tendon vibration. Motor-evoked potentials (MEPs) were elicited in the soleus (SOL), gastrocnemius medialis (GM) and tibialis anterior (TA) by transcranial magnetic stimulation of the motor cortical area of the leg with and without Achilles tendon vibration at various frequencies (50, 80 and 110 Hz). Contralateral homologues were also investigated. SOL and GM MEP amplitude significantly increased by 226 ± 188 and 66 ± 39 %, respectively, during Achilles tendon vibration, without any difference between the tested frequencies. No MEP changes were reported for TA or contralateral homologues. Increased SOL and GM MEP amplitude suggests increased vibration-induced corticospinal excitability independent of vibration frequency.

Original languageEnglish
Pages (from-to)441-448
Number of pages8
JournalExperimental Brain Research
Volume233
Issue number2
Early online date5 Nov 2014
DOIs
Publication statusPublished - Feb 2015
Externally publishedYes

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