Re: How much exercise?
Ah. Well in that case, that's a good routine to keep with. Things like yoga and pilates (or any video that puts some kind of focus on strengthening) will be beneficial to you as well. You probably don't need to be burning excessive calories, so adding some good muscle tone will increase health, fitness, metabolism, immune system and more.
Keep your body lean, your blood clean and your mind sharp. -Rollins