A staple exercise within my ab routine is using the infamous ab wheel. You know what I mean, the small wheel with two handles on each side, looks easy but is actually very good and hardworking of your mid section. Did you know that many people will perform this exercise incorrect and feel pain in their lower back, do you too? If you get pain in your lower back then read on to save the discomfort and concentrate solely on your abs!!
Begin kneeling on the floor with the ab wheel in front of you. Before you roll out with it, tuck your hips under so that your upper back rounds slightly (same posture if you were to perform the cat and lion pose in yoga). From here roll out, keeping the hips tucked under and you will notice when you are in this position, your lower back does not sink to the floor. Therefore there will be no discomforts and you will be able to perform more repetitions, hitting the abs and building thicker, more defined ones!