I haven't seen this thread in a while. I'll answer a few things here.
I would be a little concerned if the PT person isn't washing hands in between, my guy always did. He was extremely structured though, the other PT people in the place made fun of him all the time. But if you're even a day or two out of surgery, there shouldn't be any cross contamination.
Prone hangs are a bitch, it looked like medieval torture when I did it. I would sit in a chair with my leg up on the opposite chair. They would strap a contraption up to the leg and attach it to the floor, then contract it until I made funny noises. Then I had to hold it for 15 minutes....then they pulled harder and hold for another 10

This was one of the times that I almost passed out. During later PT sessions, they would hook up the electric stim while doing this, but my pain threshold was higher by that point. I did this for a while too, way past the 0 deg point.
If you have meniscus damage, you can't compare yourself to people who are walking fine after a couple weeks post op. I had the same issue, pointing out that I'm working this damn hard and people are walking before me.
It sounds like you're doing the bike before I was, so that's definitely a good thing.
The key is to keep on doing, don't get discouraged. You have your good days and bad days and you just have to roll with it!
B)
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