Subsequent sessions will involve the collection of outcome data by the data-collecting therapist followed by treatment performed by the treating physical therapist. No adjustments will be made to the treatment protocol in any of the sessions. Subjects will only be scheduled with and treated by the same treating physical therapist each session. In the event that a treating physical therapist is unable to see a subject participating in the study, the subject will be rescheduled for a different time to receive care.