BF,
Don't know if you ever saw the information for Bodyflex, but it's wonderful!!
I started doing it before partly for migraines as it brings so much oxygen in to your body.
But also lost a ton of inches!
It incorporates beep breathing with isotonic and isometric exercises and you do most of it sitting in a chair. And takes less than 20. mins.,,, in you PJ's or whatever. Different from yoga tho.
Also helps increase flexibility.
I LOVED it, don't know what happened that I slipped out of doing it, but have just started back.
www.bodyflex.com