HOW: Grab a medicine ball. Set up in a single leg stance position. Hold the ball in front of the body at the height of the shoulder.
Drop the ball and catch it in a single leg squat position, once again at the height of the shoulder.
Hold for a count of one. Return to the starting position.
FEEL: You should feel this in the quadriceps.
COMPENSATION: Avoid letting the trunk fall forward, Avoid letting the knee bend any further after catching the ball.