The focus of my work in physical therapy is stretching my leg so it will get straight and stay straight. I now sit on the modern version of the rack for ten minutes, while it stretches both legs. It's as much as I can take. When I am home I also work on stretching by placing a five-pound weight on my knee while it is resting on a low stool, straight.
The other day I did the ten minutes and later the weights at home. When I went to bed that night I had a bad time with spasms - restless-legs. It went on and on and made a hell out of the night.
My theory is that the stretching brings on the spasms later. It makes sense, particularly because the leg that is pushed the hardest - the right- is the one usually going into the spasms. If this is so, then there should come a time when my legs are straight and the spasms slow down and even stop. I hope this is the case.
In general, I am walking better. I have been going without my cane some of the time now and I am starting to walk down stairs alternating legs, rather than stepping down with my right leg and then bringing my left down to meet it. I think I'm making real progress.