You'll need more than just crunches to build a strong, functional core. Try these moves to upgrade your workouts.

When heading to the gym, I usually opt for full-body workouts because they're so damn efficient. But in the day before to my favorite cycling class, I avoid working my legs; I want them to feel fresh ...

Gym machines help target and build specific muscle groups, making them great for ab exercise. Moves like the Pallof press, leg raise, and cable crunch work all the muscles of your core. Exercise like ...