Lie on your side with knees bent, feet together, and a resistance band around your thighs, just above the knees.
Open your top knee, and then close it back down slowly.
Form tips
Maintain tension on the band throughout the movement. Keep your feet together and lift the knee only as far as is comfortable without rotating your pelvis.
Focus on the outer hip muscles activating as you open and close the knee.
Control the movement, ensuring a smooth and controlled motion.