Acute whole-body vibration increases reciprocal inhibition

Research output: Contribution to journalJournal articlesResearchpeer-review

Authors

  • Ramona Ritzmann
  • Anne Krause
  • Kathrin Freyler
  • Albert Gollhofer

Research units

Details

Based on previous evidence that whole-body vibration (WBV) affects pathways involved in disynaptic reciprocal inhibition (DRI), the present hypothesis-driven experiment aimed to assess the acute effects of WBV on DRI and co-contraction. DRI from ankle dorsiflexors to plantar flexors was investigated during submaximal dorsiflexion before and after 1 min of WBV. With electromyography, musculus soleus (SOL) H-reflex depression following a conditioning stimulation of the peroneal nerve (1.1x motor threshold for the musculus tibialis anterior, TA) was assessed and co-contraction was calculated. After WBV, DRI was significantly increased (+4%, p < 0.05). SOL (−13%, p < 0.05) and TA (−6%, p < 0.05) activities were significantly reduced; co-contraction tended to be diminished (−8%, p = 0.05). Dorsiflexion torque remained unchanged. After WBV, DRI increased during submaximal isometric contraction in healthy subjects. The simultaneous SOL relaxation and TA contraction indicate that a more economic movement execution is of functional significance for WBV application in clinical and athletic treatment.
Original languageEnglish
JournalHuman movement science
Volume60
Pages (from-to)191-201
Number of pages11
ISSN0167-9457
DOIs
Publication statusPublished - 2018

ID: 5195951

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