I'm sure others here will have a better answer for you, but I have had some trouble with that too. The last time they measured me, I was at 11 weeks, and I was a 3. I know it doesn't sound like much, but it's noticeable to me in the way that it feels, and the way that I walk.
A couple of the people on here have some really good ideas about improving that. Does your PT say much about the extension? Are they doing anything to improve it? It seems like at 10 weeks they should have been working on that more. Most of the people here seem to get pushed TOO hard, and then they don't help you out.
I have been laying on the couch with my heel on the arm of the couch, and then letting my knee drop. One person here said to add a little heat to the back of your knee before you do it because it will loosen up a little bit. Keep working at it.
I haven't been measured now for awhile, but I'm hoping to be at a 2 next time. Baby steps!
:thmb: