Lie on your back, spine neutral, knees bent and feet flat on the floor, hip-width apart. Keep your arms at your sides, with your palms down.
Exhale and squeeze your glutes and lift your hips off the ground until your knees, hips and shoulders are all in one straight line. Don’t push from your heels – the momentum should come from your hips lifting.
Keep squeezing hard with your abs drawn in too, and hold the position for a couple of seconds before easing back down smoothly, in one fluid motion. Repeat 10 times.