Start in a high plank position with your hands on the floor, arms straight and underneath your shoulders. Step your feet back behind you and lift your knees. Engage your glutes, tense your legs and brace your core to keep your body rigid. Feet should be between hip and shoulder width. This is your start position.
Keeping your core engaged, slowly walk your hands forward. Keep your back straight and don’t let your hips sag toward the floor. When you’ve walked your hands as far as you can whilst maintaining your form, walk them back to the start position.