Gait and Balance Impairment in Rare and Very Rare Neurological Diseases

Inclusion Criteria

• •Multiple sclerosis, Parkinson's disease, peripheral neuropathy of the lower limbs or rare or ultrarare neurological disease (e.g. la Cerebellar Ataxia with Neuropathy and Vestibular Areflexia Syndrome - CANVAS, ORPHAcode: 504476; Wilson's disease, ORPHAcode: 905)
• •undiagnosed neurological disease, i.e. a neurological disease that remains unknown after a full diagnostic assessment;
• •age \> 18 years;
• •ability to stand upright with no assistance and no assistive device for \> 30 seconds;
• •ability to walk without assistance and with no assistive device for \> 50 m;
• •ability to give their informed consent.