Start in a plank position with your hands under your shoulders and your legs and body straight back behind you.
Step one leg forwards outside of your hands.
Sink your hips down towards the floor between both feet.
Lift your hand closest to your front foot up.
Reach it up towards the ceiling, turning your upper body and head with the movement.
Allow your head to follow the movement so that your gaze looks out to the side.
Return your hand to the floor, then step this leg back.
Repeat on the other side.