Herndon W A, Troup P, Yngve D A, Sullivan J A
J Pediatr Orthop. 1987 Jul-Aug;7(4):395-400. doi: 10.1097/01241398-198707000-00003.
Twelve children with mild, moderate, or severe cerebral palsy were examined and videotaped before and after an intensive course of physical therapy in a neurodevelopmental treatment course. These tapes, demonstrating various predetermined movement patterns, were then randomized and viewed by six evaluators. None of the evaluators could tell the difference between before and after films. This demonstrated that significant changes were not seen in children with cerebral palsy after 6 weeks of therapy.
