Lay yourself down, facing towards the floor, your hands just a little bit wider than shoulder width apart and your arms fully extended keeping your upper body off the ground.
With your feet together, resting on the toes, keep your body perfectly straight from the head to right through to the toes.
Keeping your neck naturally aligned by facing the floor.
Lower your chest as low to the floor as possible, then fully extend your arms again to take you back to the starting position to complete the exercise or to repeat again.