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.
It is important to understand the brain injury for each individual person, because they can be really different. Where the injury is can give us important clues to what motor problems that individual will have. The time you have the biggest risk to having a stroke is as a baby, not as an adult so it is important to understand what may be happening in the infants brain.