Lie comfortably on your back on the floor.
Rest your arms at your sides and bend your knees to a right angle in front of you.
Gradually pull your knees toward you, using your core and not momentum. Try to keep your hips on the ground to avoid unwanted curvature of the spine.
Slowly return your legs to the starting position to complete one repetition. Repeat 9 more times to complete one set of 10 repetitions.
You’ve completed this one! Great job!