Start on your hands and knees.
Walk your hands forwards until you form a straight line from your shoulders to your knees.
Lift your knees off the floor, so that you are supporting your bodyweight through your hands and toes.
Keeping your body straight, slowly bend your elbows, lowering your chest until your bent knees touch the floor.
Your elbows should remain close beside your body.
Pause briefly, and then return to the start position by extending your arms out straight, ensuring you do not lock your elbows at the top of the movement.
Pause briefly, and then repeat.