Sorry guys.
Too little information on my part.
My bypass was in 2004, but DnvrFox hit it on the head. Between me and Doc we decided it was time to get off my a$$ and lose weight.I actually started last August, but in January of this year I broke 4 ribs and spent a week in the hospital. I'm only now getting back on my bike.
I actually rode yesterday on the road rather than the trainer. I was able to get my heart rate up to 99, Doc wants a max of 105 as I start out. Only problem was lactic acid in my lazy legs. Around my house is hilly in every direction, so this weekend I believe I head to the WOD bike trail and ride the flats for a while.
Again sorry about mis-information, and thanks for the suggestions. I'll keep you posted.
Bruce