Mediyoga

Also called "medical yoga," it's a soft form of yoga that can be done by EVERYONE; if you can't get down to the floor, you can sit on a chair or wheelchair. With a focus on breathing and slow, gentle movements, the body softens up and you feel a little better. 
Mediyoga is a Swedish variant of kundalini yoga; it was developed by Göran Boll, on whom there is Swedish research. Mediyoga is practiced today in many hospitals and health centers.

If you want to read more about Mediyoga or the research, you can read it at: www.mediyoga.se