The influence of dual task on gait during galvanic vestibular or visual motion stimulation

Introduction: Gait performance is a multimodal process. Proprioceptive, visual and vestibular inputs have a great influence on gait. Galvanic vestibular stimulation (GVS) induces a body sway to anodal side of stimulation (Fitzpatrick et al., 2004). Visual motion stimulation (VMS) in roll also can induce gait deviation (Schneider et al., 2008). There is an effect on gait if additional concurrent cognitive tasks are required while walking, i.e. dual task. The more demanding the task, the greater is gait deviation. Not only cognitive tasks but also motor task can be modified (Paquet et al., 1998). On this basis, we…