Brock, thanks for the information. I'm really out of date on this sort of science.

I'm currently planning on about 45 minutes on the recumbent bike, then hitting the Nautilus to do a double round. Whatever time is left, I'll probably hit the hot tub. All this, btw, contingent on my knee not giving out. I'll also be taking Yoga, Tai Chi and a few other classes, as available.