Subjects of the ages 8-21 are eligible to participate in this study. Due to the inclusion of a vulnerable subject the responsible party/parent or guardian must grant inclusion and must be able to attend the initial physical therapy evaluation of the minor and sign all consenting documents. The physician offices within the surrounding hospital area and doctors that typically refer to this clinic will be notified of the research study (attachment physician letter and flyer for the facility). Patients will be included in the study if they meet the following criteria: