Stand upright with your feet shoulder-width apart over the middle of a band, with your arms shoulder-width apart and fully extended.
Grabbing the opposing end of the band with each hand, exhale and raise your leg upwards toward your side, keeping it fully extended and your torso rigid.
Continue to raise your leg until you are no longer able to raise it any further. Do not allow your torso to rotate and do not allow your arms to help with the movement.
Inhale and lower your leg, returning to the starting position.