SUSCEPTIBILITY OF DYNAMIC EQUILIBRIUM TO VESTIBULAR FUNCTION DISORDERS IN DOWNHILL SKIERS
Journal Title: Medycyna Sportowa - Year 2011, Vol 27, Issue 1
Abstract
The paper is an attempt to evałuate the vulnerability of dynamic balance, in the frontal and sagittal plane, to vestibular dysfunction in high-class downhill skiers. The following questions are posed: 1. does vestibular dysfunction caused by the rotation of the body around its vertical axis significantly affect the subject, having an impact on the outcome of the task performed on the balance platform? 2. are there any differences in the levels of dynamic balance in alpine skiers as related to the comparative group? 3. does equilibrium level vary significantly with respect to the frontal and sagittal planes?The study sample consisted of 11 alpine skiers. The control group consisted of 40 individuals - students of Physical Education. Dynamic equilibrium level was determined using Libra Balance Board. Labyrinth malfunction was evoked by a fivefold rotation test in the longitudinal axis with the subjects in an upright position. The examination on the balance platform was carried out in two stages: without vestibular function disturbance and after body rotation around the longitudinal axis.1. The applied vestibular function disturbance was too weak to lead to changes in the equłlibrium level. 2. In both examined levels of movement, no differences were found as revealed by the trial results. 3. Dynamic equłlibrium of the skiers turned out to be statistically significantly better than that of the control group, particularly in the frontal plane.
Authors and Affiliations
Dariusz Tchórzewski, Janusz Jaworski, Przemysław Bujas
Keywords
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