The influence of head rotation on human upright posture during balanced bilateral vibration

Victor S. Gurfinkel, Yuri P. Ivanenko, Yuri S. Levik

Research output: Contribution to journalArticle

Abstract

During a balanced bilateral vibration of tensor fasciae latae muscles evoking no evident postural changes in a standing human the slow head turns resulted in a pronounced lateral common gravity centre displacements to the 'occipital' side. Neck influences were most prominent at intermediate tonic background and were lacking both during very weak and strong vibratory stimulation in contrast to usual tonic vibratory reflex which becomes stronger with the increase of frequency. Body sway was induced not only by actual head turns but also by illusory ones evoked by neck muscle vibration. The neck influences on standing posture are therefore present in healthy adults, but they require a definite level of tonic readiness for their manifestation and are incorporated in the whole system of body scheme mechanisms.

Original languageEnglish
Pages (from-to)137-140
Number of pages4
JournalNeuroReport
Volume7
Issue number1
Publication statusPublished - Dec 29 1995

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Keywords

  • Human
  • Lateral stability
  • Muscular vibration
  • Neck reflexes
  • Standing

ASJC Scopus subject areas

  • Neuroscience(all)

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