This is an aerobic exercise targeting the heart and lungs
• Squat down, bending no lower than 90 degrees at the knee
• Place your hands shoulder width apart on the bench
• Keep your body weight over your shoulders and wrists
• Jump both feet straight back to land on the toes
• When your body is in this extended position your shoulders, hips and knees should be inline
• From this position, jump both feet back in keeping them shoulder width apart and your knees at 90 degrees
• Stand up straight
• Doing this with a bench or a box is easier than off the floor
• Breathe naturally through the exercise