Understanding Hypermobility Disorders — And How Physiotherapy Can Help! Hypermobility disorders, including Hypermobile Ehlers-Danlos syndrome (HEDS) and Hypermobility spectrum disorder (HSD), affect the way connective tissue behaves throughout the body. Connective tissue provides structure and support to joints, tendons, ligaments, skin, and even internal organs. When it is more elastic than usual, joints can move beyond typical ranges, which can be an advantage in spor