There are 10 different impairment types. They are often divided into three groups of impairment: physical (impaired muscle power, impaired range of movement, limb deficiency, leg length difference, hypertonia, ataxia, athetosis and short stature), vision and intellectual. Once it has been assessed whether or not an athlete has an eligible impairment, it then has to be determined whether the athlete meets the "Minimum Impairment Criteria."