The aim of this article is to report a unique case of familial multiple sclerosis from Saudi Arabia with 2 novel variants in the HLA-DRB1 gene that may contribute to the pathogenesis.
Head rotation (HR) negatively affects balance and walking performance in people with multiple sclerosis (MS). Specifically, during walking, individuals with MS lose their walking rhythm for a few steps after HR, which represents a significant performance decline and may partly explain their increased risk of falling.