Are otolithic inputs interpreted better in figure skaters?
The aim of this study was to investigate whether figure skaters, as individuals who experience intense vestibular stimulation, presented modification of the otolith-ocular reflex. The reflexes of 12 figure skaters were assessed using off vertical axis rotation (OVAR). Horizontal otolith-ocular reflex during OVAR is characterized by two parameters: the eye velocity horizontal modulation, assumed to compensate for perceived lateral linear translation, and the bias, assumed to compensate for the perceived rotation. We observed that skaters presented smaller amplitude of modulation and truly compensatory bias compared with control participants. Thus, the otolithic signal during OVAR seems to be interpreted more as rotation and less as translation or inclination in figure skaters.
Tanguy
Sébastien G
SG
EA 3917 Attention, Orientation et Fonctions Exécutives, Universite of Caen, 14032 Caen Cedex, France.
Quarck
Gaëlle M
GM
Etard
Olivier M
OM
Gauthier
Antoine F
AF
Denise
Pierre
P
D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D002648:Child; D004585:Electrooculography; D005260:Female; D006112:Gravitation; D018466:Gravity Sensing / Q000502:physiology; D006801:Humans; D008297:Male; D009039:Motion Perception / Q000502:physiology*; D017120:Nystagmus, Optokinetic / Q000502:physiology; D010037:Otolithic Membrane / Q000502:physiology*; D012027:Reflex, Vestibulo-Ocular / Q000502:physiology*; D012861:Skating / Q000502:physiology*; D014724:Vestibular Function Tests / Q000379:methods