HOW: Begin by placing a bosu ball on the ground in front of you a couple of feet with the ball side up. On one leg, hop forwards onto the ball with the foot that was balancing and immediately jump back into the starting position. Make sure to absorb the landing back by slightly bending your knee and landing on the balls of your feet.
FEEL: You should feel the muscles in your calf, quadriceps, and glute working.
COMPENSATION: Land on a safe spot on the bosu ball with your foot flat on the ball. Land softly each time you return to the ground and absorb the force as best as you can.