My husband had quadruple bypass three months ago.  He refuses to go to
a cardiac rehab program.

He currently walks two miles daily on our treadmill (30 minutes twice
a day at 2 mile per hour).  The speed has been increasing slowly.  He
has been doing 30 minutes twice a day for about the past two months -
started MUCH slower.  He wears a heart monitor that measures heart
rate.  Before that he did the at home walking program given to him by
the physical therapist at the hospital.

I watch his diet carefully.  Luckily he does not and never has had a
weight problem so I'm mostly watching the saturated and trans fats.
He's also never had any blood pressure problems and the doctor said
salt is not a big issue.

I'm wondering what a cardiac rehab program might do for him that he
isn't doing for himself.  While I know he won't go to one he would be
willing to do other things at home.  He had a very rough time (in the
hospital 20 days) and recovery has been very slow and difficult.  He's
exhausted most of the day but does his exercises no matter what.

What else should he/we be doing?  Please don't say go to rehab because
he just won't do it.

Thanks.