Tai Chi: Not exactly my thing, but...

...For those who might have an interest in using it as a tool in stroke rehabilitation:

A recent study led by researchers at the University of Illinois shows that Tai Chi, a Chinese form of martial arts that consists of a series of coordinated movements of the head, trunk and limbs, and which does not need any equipment, is an effective form of stroke rehabilitation.

I'm more of a distance runner guy, but hey - this could be extremely helpful for some.