Start on your hands and knees with your hands under your shoulders and knees under your hips.
Place your hands on a low bench or step, keeping your weight through your arms.
Tighten your abdominal muscles and keep your back straight.
With your gaze between your hands slowly lift one arm and your opposite leg up.
Reach your hand as far away from your foot and visa versa.
Ensure you keep your body straight and still throughout.
Do not allow your hips in particular to twist with the movement.
Control your body as you bring your arm and leg back to the starting position and repeat on the other side.
