Tip: The Barbell Rollout

Ditch the ab wheel and give this a shot. It's more challenging due to the increased range of motion.

Using an empty bar allows you to work through slightly more range of motion than an ab wheel. The bar sits a little lower to the ground which means your body can fall flatter.

This will also place the points of contact (the bar and your knees, or feet if you're doing them standing) further apart. The further the distance between these contact points, the harder your abs must work to keep your lumbo-pelvic region positioned correctly.

Drew Murphy is a gym owner and personal trainer located in Tiffin, Iowa. Out of his facility, he trains clients using a wide range of strength and conditioning methods.  Follow Drew Murphy on Instagram