Hi Limbin,

I no doubt the muscles listed have an effect on rotation. But is rotation strength of the knee something we can train? Apart from general functional strength training for twisting in various positions, i can't think of how to train it.

My personal view has always been that the foot and ankle in conjunction with the hip and pelvis send forces through to the knee and it simply tries its best to transfer load efficiently through the joint.

I am open to other views though - i am by no means certain of my own position...