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

Planks are great, but they aren't the be-all and end-all of core training. After all, most people tend to just "hang" in them -- which completely sells their results short. And, even when performed ...

The plank exercise is an old-school isometric core exercise that originated with yoga practices and has since been a standard part of mainstream bodyweight workouts. It's a top-shelf ab move that can ...

‘In your 20s and 30s, being able to plank for 45-60 seconds is a solid marker of good core endurance,’ says PT Joseph Webb, ...

The versatile plank helps strengthen muscles of the arms, shoulders, back, core, and more, all in one move. It’s central to many exercise programs, from Pilates to yoga to circuit training, along with ...

The plank has long been considered one of the ultimate tests of rock-solid core strength. But beyond the classic straight-arm and forearm versions, there are plenty of variations that challenge your ...

Staying still is hard work. Try holding a complex yoga pose or bracing through a plank, and tell me I'm wrong. You can really feel the burn without moving a muscle. Planks, which work muscles from ...

Jennifer Cohen is the author of best-selling titles No Gym Required, Strong Is The New Skinny, and Badass Body Goals, and the host of the Habits and Hustle podcast. She is an entrepreneur, fitness ...