A Reading Disorder or dyslexia is estimated to occur in about 4% of U.S. children.  It is usually not diagnosed until kindergarten or first grade and possibly as late as fourth grade in usually bright children. Its diagnosis is made when reading achievement on standardized tests of reading comprehension is substantially below expected for the child's age and intelligence.  Any reading difficulties must be in excess of those expected with any sensory deficit.

Small Study Finds Exercise Helps: A small randomized study of 35 dyslexic children by the University of Exeter in England found that those assigned to a special exercise program at home did substantially better. Cerebellar/vestibular signs were substantially alleviated following the exercise treatment whereas there were no significant changes for the control group. Even after allowing for the passage of time, there were significant improvements for the intervention group in postural stability, dexterity, phonological skill, and for naming fluency and semantic fluency. Reading fluency showed a highly significant improvement for the intervention group. Evaluation of an exercise-based treatment for children with reading difficulties. Reynolds D, Nicolson RI, Hambly H. Dyslexia. 2003 Feb;9(1):48-71; discussion 46-7

Coordination Treatment Does Help: Dyslexics have cerebellar problem. A study of children randomly assigned to home exercises for 6 months, e.g. standing on one foot and throwing a bean bag at a target, showed definite improvement. Studies have found intensive reading programs have not been very effects. David Reynolds at Exeter University and Rod Nicholson at Sheffield University, 11/7/02 New Scientist News Service.