Ways to enhance the ability of hip external rotation are prone hip external rotation, clam exercise, fire hydrant style, etc.. 1. Prone hip external rotation: take the prone position, one leg bent at the knee placed on the other side of the calf, the knee facing outward to do upward lifting action, repeat a few times and then change the other side to repeat. 2. Clam movement: lying on the side, legs close to the forward knee, lift the knee above and keep the feet close, while ensuring that the hip does not move, lift to the highest place to fall back to the starting position, repeat a few times for the other side to repeat. 3. Fire hydrant: take a kneeling position, knee, hands on the ground, one leg outward to do abduction, keep the knee flexion 90 degrees, as much as possible to raise the leg, and then fall, repeat a few times for the other side to repeat. It is recommended to carry out training to enhance the ability of external rotation of the hip joint under the guidance of professionals, so as to avoid the adverse consequences of incorrect posture. If there is any discomfort during the exercise, consult a doctor promptly.