I can attest to that, IceMan. I had a knee replacement 9 weeks ago. Knowing it was in the offing, most of last year I visited my local gym and used a good range of equipment but nothing too intensive. I think towards the end I was using 10 different machines and feeling heaps better. For the record I am 67 and was the template for the couch potato!!

Anyway, come early December I can no longer do the gym stuff. So knee was done in March. I cannot believe the speed of my recovery! I was at 90 degrees of flexion before the week was out! It was 130 degrees, was walking without any aids plus going up and down stairs normally by the end of week 3! Now it's 135 and sometimes more.

I put it all down to the gym work I did last year. I just started back at the gym early this week.

Hope that helps your project.