Stand with your feet shoulder width apart. Squat down and place your hands palms down on the floor in front of your feet. Lean forward, so your weight is on your hands, at the same time jumping your legs out behind you until they are fully extended. Your body should form a straight line with your arms fully extended in a high plank position. Then jump your feet forward to just behind your hands. Use an explosive motion to push through your heels and return to a standing position. Repeat for the required number of reps (or time).