I'm fairly new to gymnastics training, having been a track athlete and soccer player for many years. I've struggled with some squat variations and have realised that I have absolutely no internal rotation of the femur. Any internal rotation apparent in the foot comes from the knee. The furthest I can rotate my femur is to have my knee facing directly forwards. I have no problem with external rotation and can get my feet to form a 180 degree angle with my heels touching.
One issue I have is that any way that I can think of to try and apply pressure to the leg to force some internal rotation will put a great deal of stress on the knee.
If anyone has any advice then I would be more than willing to experiment within reason and very grateful.