This teaches the large muscles of the hips and back to generate bar acceleration without help from the arms.
From high chest position, jump, fully extending hips, knees and ankles
Keep wrists flexed, elbows rotated outward and focus straight ahead
Forcefully shrug shoulders, keeping chest up
Coaching Point: Elevate the bar as high as possible without bending your elbows, and keep the bar close to your body throughout the movement.