Clean barbell from floor and position on shoulders or dismount barbell from rack. Grasp barbell to sides with very wide overhand grip. Position toes outward with wide stance.
Quickly dip body by bending knees, hips and ankles slightly. Explosively drive upward with legs, driving barbell up off shoulders, then immediately drop body downward into full squat position while vigorously extending arms over head.
Maintain barbell over head with arms extended while extending knees and hips until legs are straight. Bend knees slightly and drop barbell to back of shoulders. Straighten legs and repeat execution.
To achieve quick descent, feet should actually leave floor momentarily. Only during return, or squatting upward are feet flat on floor; equal distribution of weight through forefoot and heel. See Squat Analysis. Master Overhead Squat and Press Under before practicing this exercise. Also see movement in Slow Motion.