traditional physical therapy influenced function (primary aim), pain, and psychological
beliefs (secondary aims) among adolescents with patellofemoral pain (PFP). Design Double-
blind randomized controlled trial. Setting Outpatient physical therapy clinics of a single
pediatric hospital. Participants Sixty-six adolescents with PFP (14.8±1.7 years old, 65%
female). Intervention Adolescents were randomly assigned to view a brief psychologically …