For people with a physical disability, activity is a lifestyle. It's something that can start in physical therapy, but it really is something that has to be carried over into their everyday lives. What has happened over the years is we're understanding the importance of mobility.
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.