In order to be eligible to play, athletes need to have a mobility-related disability in at least three limbs. According to the Canadian Wheelchair Sports Association, the majority of athletes have spinal cord injuries that have resulted in full or partial paralysis of the legs and partial paralysis of the arms, but other disability groups who are eligible to play include polio, cerebral palsy, some forms of muscular dystrophy, dysmelia, amputees, and other neurological conditions such as Guillain-Barré Syndrome.