Balance impairment is one of the primary causes of disability in people with multiple sclerosis (MS). It increases the risk of falls and contributes to the development of fear of falling (FOF), a vicious cycle that leads to a limitation in daily life activities. The imbalance could be caused by motor and sensorial deficits as well as sensory-motor integration deficits. Despite the disability that balance disorders cause, literature about its' rehabilitation is very scant. To our knowledge two studies have been published on MS balance rehabilitation. The first paper described case reports on MS balance rehabilitation using the "Bobath" approach. The second paper performed a preliminary randomized controlled study describing the effectiveness in restoring balance control and reducing risk of falling using a specific training program aimed at improving sensory-motor integration in people with MS. Considering the several limitations of this study, further trials are warranted to assess the usefulness of specific sensory-motor training on balance impairment in people with MS. The aim of this randomised controlled double blinded clinical trial is to evaluate whether a training program consisting of exercises performed under different sensory conflict conditions can lead to an improvement in postural stability in patients with MS. This in turn might lead to an improvement in walking ability, autonomy in daily life activities and quality of life in people with MS.