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  • Title: Interference between walking and a cognitive task is increased in patients with bilateral vestibular loss.
    Author: Bessot N, Denise P, Toupet M, Van Nechel C, Chavoix C.
    Journal: Gait Posture; 2012 Jun; 36(2):319-21. PubMed ID: 22465706.
    Abstract:
    The aim of this study was to determine whether there is more deterioration in walking under dual-task conditions in patients with bilateral vestibular loss (BVL) than in healthy subjects, as opposed to the findings after unilateral loss. For this purpose, 12 patients with BLV and 12 healthy control subjects performed 3 tasks: walking along a 10-m walkway, counting backwards by two, and both tasks simultaneously. Patients did not differ from controls in their walking speed in the single task condition, or in their cognitive performance in both the single and dual-task conditions. However, walking performance was more affected in patients than in controls under dual-task conditions, as shown by slower gait speed in the dual-task, higher reduction in gait speed from single to dual-task, and lower global dual-score. These findings provide evidence for greater attentional interference between walking and counting in patients with BVL.
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