Does footedness or hemispheric visual asymmetry influence centre of pressure displacements?

To isolate the footedness contribution from the hemispheric visual asymmetry contribution to the upright postural control, seven right and six left-footed healthy women were asked to balance on each unipodal stance on an unstable platform for each visual hemispaces. We compared lateral deviations of...

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Bibliographic Details
Published in:Neuroscience letters 2004-09, Vol.367 (2), p.148-151
Main Authors: Golomer, Eveline, Mbongo, Fabienne
Format: Article
Language:English
Subjects:
Adolescent
Analysis of Variance
Atmospheric Pressure
Biological and medical sciences
Dynamic equilibrium
Female
Foot - physiology
Footedness
Functional Laterality - physiology
Fundamental and applied biological sciences. Psychology
Humans
Perception
Postural control
Posture - physiology
Psychomotor Performance - physiology
Unipodal stance
Vertebrates: nervous system and sense organs
Vision, Ocular - physiology
Visual space
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Summary:To isolate the footedness contribution from the hemispheric visual asymmetry contribution to the upright postural control, seven right and six left-footed healthy women were asked to balance on each unipodal stance on an unstable platform for each visual hemispaces. We compared lateral deviations of the centre of pressure when balancing on the left leg and on the right leg in three visual conditions: normal and restricted to each hemifields. Whatever the visual conditions, left-footers displaced the centre of pressure towards the outside of the supporting foot, whereas right-footers displaced it towards the right side for the two feet. Postural control appears to be regulated differently between the two groups of footedness. For left-footers it should be more based upon the perception of the centre of body mass and for right-footers upon the asymmetrical utilization of head receptors.
ISSN:0304-3940
1872-7972
DOI:10.1016/j.neulet.2004.05.106