18 children post acquired brain injury and 18 typically developed controls matched for age and gender.

All children aged 10-18 yrs who understand simple commands.

Tools:

1. Heart rate monitor
2. Six minute walk test
3. The behavior rating inventory

Method:

1. At the introductory visit the child will be asked to walk for six minutes, to sit and perform a cognitive test and then to walk on a treadmill for 5 seconds.
2. At the second visit the child will be asked to go on the treadmill for 5 minutes and at the same time to perform the cognitive assignment; After a rest the child will be asked to walk on the treadmill for 5 minutes and at the end to perform the cognitive assignment .

Inclusion Criteria:

aged 10-18 understand simple commands walk independently

Exclusion Criteria:

Canot understand simple commands