Modification of muscle sinergie and spinal maps due to absence of visual feedback in patients with unilateral vestibular disease.

The present study aimed at describing the codification of muscle synergies and spinal activities due to the absence of visual feedback, in patients affected by unilateral vestibular desease . Patients were asked to both type the unperturbed quite stance and walk while the activity of seven bilateral muscle,from the leg to the trunk, where recorder for the estimation of muscle synergies and spinal activity.Results showed that during locomotion the absence of visual feedback did not significantly modyfied either the principal roles underlying muscle activity ( i.e. ,synergies) or the spinal burst.