Loop one end of resistance band around a sturdy object and the other end around your ankle. Stand tall with the looped ankle farthest from the opposite end of the band while holding the sturdy object with your inside arm.
Lift your outer leg up and straight out to side as far as possible. Pause, then return your leg to the starting position.
Make sure you pause at the top of the repetition.
Do not let your torso drop as you lift your leg. Stay in a comfortable standing position.
Do not use momentum to lift or swing your leg. Make sure you control the motion throughout the movement.