You know what, truthfully, I am six weeks today and it has gone a lot fast than I thought. I was only really completely down for 3 weeks. And during those three weeks, I did not really feel like doing much anyway. I went in with a list of all the possible activities that I could do and had the doc say yes or no. Can I lift upper body? yes, when the cast come off. Can I do core work? yes...etc.

So if the trainer is your go to, embrace it. It will go faster than you think. I did not gain any weight and I mt biked with my normal comrades last w/e and they said they saw no difference in my fitness. I felt it, but hey, if they did not see it, who am I to argue!

good luck with your surgery, let us know how you make out.