Stop doing 100s of sit-ups to build strong, stable abs. McGill curl-ups are elite, and here's how to do them

McGill curl-ups, or modified curl-ups, are much friendlier for your lower back than moves like sit-ups, as your lower back is ...

Forget sit-ups and crunches — I added this three-legged plank and tiger curl combination to my ab workouts...

This move, as the name suggests, combines a three-legged plank (challenging enough on its own) with a tiger curl, which ...