Hip Airplane

Step 1. Stand on one leg and lean your upper body slightly forward while keeping your back straight. Extend the free leg behind you so that your torso and leg form roughly one line. Slowly open your hip to the side by rotating your pelvis and upper body in a controlled way. Then close the hip again and return to the starting position.

Step 2. The movement should mainly come from the hip. Keep your standing foot stable and avoid letting your knee collapse inward.