Dance relies on the dynamic changes of limbs to express dance vocabulary, and soft opening training aims to solve the problem that all parts of limbs have the greatest freedom to perform better. It is conceivable that if the crotch is only opened at one angle and two angles, how can you easily and smoothly make a large-angle encircling action?

Also, soft open training exercises bones, joints, ligaments and muscles, and the whole structure is trained at the same time. Don't think that the angle of the calf has nothing to do with the training of the thigh, but it has a lot to do with it. When the calf angle is different, the soft opening state of the thigh is different, and dancers will definitely have this experience.