Physical Therapy Game
Wired Magazine's website has a great article about "therapy tiles" which provide patients with a game-like method for conducting their physical therapy. The article describes common physical therapy activites as "tedious" and "monotonous," but describes these therapy tiles as a method for engaging patients which actually achieves flow, thus speeding the patient's recovery with, apparently, less effort on the part of the patient.
The tiles provide feedback on accuracy, the pressure of the patient's interaction with a tile and the speed with which they pressed or stepped on a tile. The game aspect of this appears to provide greater motivation and gets the patient to achieve a state of flow, making the therapy more enjoyable and, surprisingly, more effective.
You can review the article here: http://www.wired.com/medtech/health/news/2007/10/therapy_tiles