Can vision compensate for a lower limbs muscular fatigue for controlling posture in humans?
The purpose of the present experiment was to investigate the effect of vision on postural control following a lower limbs muscular fatigue. Ten adult males were asked to maintain a single leg upright posture as immobile as possible in two conditions of no-fatigue and fatigue of the calf muscles. This muscles fatigue was achieved by standing on the toes until exhaustion. Within a trial, vision was suppressed or reinserted by eyes closure or opening. Center of foot pressure displacements were recorded using a force platform. Results showed that the availability of vision allowed the subjects to immediately cope with the destabilizing effect induced by muscular fatigue.
Vuillerme
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N
Laboratoire Sport et Performance Motrice, Université Joseph Fourier-Grenoble 1, Grenoble, France.
Nougier
V
V
Prieur
J M
JM
D000222:Adaptation, Physiological / Q000502:physiology*; D000328:Adult; D002490:Central Nervous System / Q000502:physiology; D005246:Feedback / Q000502:physiology; D006801:Humans; D007866:Leg / Q000294:innervation / Q000502:physiology*; D008297:Male; D018763:Muscle Fatigue / Q000502:physiology*; D018482:Muscle, Skeletal / Q000294:innervation / Q000502:physiology*; D011187:Posture / Q000502:physiology*; D011434:Proprioception / Q000502:physiology; D011597:Psychomotor Performance / Q000502:physiology*; D014785:Vision, Ocular / Q000502:physiology*; D014795:Visual Pathways / Q000502:physiology; D016474:Weight-Bearing / Q000502:physiology