Martial arts practice is starting to be considered as an alternative for medication for coping with ADHD and ADD by some experts in the USA. Martial arts can have lasting effects, without the risks of drug therapy, they say.
The concept involved is called Kinectic Linking, a process that connects physical movement to thought to obtain a controlled result. Obviously, that is the basis for martial arts training, and it has started to be studied recently by such experts as Dr. Paul E. Dennison.
Taijiquan (tai chi chuan) can be an attractive choice, since unless specifically requested, it seldom involves opponent contact and competition. The body-mind link and the meditative aspects are specially emphasized.