The GMFCS, MACS and CFCS are all tools used by therapists and researchers to help classify the functional capabilities of individuals with CP. This research article provides evidence of their stability over time.
Children with cerebral palsy experience brain damage around birth or before birth. So the language of the brain in other words, the way they will move, will be different from typical movements. So by looking at their movements, we will understand that there is something that is wrong in the brain.