Stand holding a barbell with an underhand grip, feet hip width.
Lower into a squat and place barbell on floor.
With arms straight beneath shoulders and torso in a straight line, hop feet out behind you, feet as wide as shoulders.
Immediately lower into a reverse-grip pushup on bar, elbows tracking behind you and close to your body. Press back up and hop feet in, landing with hips in midsquat.
Straighten legs and simultaneously curl bar to chest, elbows pinned at sides. Perform 2 curls.