Too much tension in the musculature around the hip joint is often responsible for limiting the degree of turnout. Therefore, releasing that tension is key if you’d like to improve outward (and inward) rotation. Tight inward rotators inhibit outward rotation and visa versa. Dancers have varying methods which they use to accomplish release in the hips. Some use passive and lengthening stretches and others utilize props like balls to facilitate an opening within the joint.