Stand with your feet shoulder width apart and lift your right leg a few inches off the floor. Keeping the right foot elevatd slightly, squat down and place your hands palms down on the floor in front of your ground foot. Lean forward, so your weight is on your hands, at the same time jumping your left leg out behind you until it's fully extended. Your body should form a straight line with your arms fully extended in a high plank position. All the while keeping that right foot slightly off the floor. Then jump your foot forward to just behind your hands. In one explosive movement, push through your foot, extending your knees and hips and jump up as high as you can. Repeat for the required number of reps (or time).