Stand holding a kettlebell in one hand between your legs and take a stance that is hip width apart with your toes slightly turned out. Bend your knees and drive your hips back but don't allow them to go lower than your knees. Brace your core, keep your chest up and keep a neutral spine. Shoulders should stay back and traps should stay relaxed, with your arm fully extended gripping the kettlebell as it rests on the floor. This is the start position. Imagine then pushing the ground away from you with your feet and as you do so driving your hips forward and extending at the knees. All the while exhaling as you do so. Pause at the top when you've reach full hip extension and are standing tall. Then return to the start position with control, by bending your knees and driving your hips back, inhaling as you do so.