I’m 67 y.o. and 4.5 months post-op from a TKA (total knee arthroscopy, aka knee replacement). I was back on the bike (indoors, of course), working on range of motion at 4 weeks post-op, but couldn’t do full revolutions of the cranks without significant pain for the first couple of weeks. I did a 2 hr Zwift ride today, first hour a moderate warmup, the second hour was an ‘hour of power’ test. My 60 min power today was only 25 watts below my estimated FTP from last August, derived from a 20 min test.
Like RMT, I’m also spending a couple of sessions a week in the gym, and my numbers there are already surpassing pre-op numbers.
Time will tell, but I’m expecting to surpass last year’s power numbers by mid-Spring. What I’m really hoping for is to hit my numbers from two years ago. Last year’s numbers were a tad low, as I was essentially pedaling one-legged for much of the year.