Core training has always been part of military PT and fitness testing. From crunches to sit-ups, flutter kicks, leg tucks and plank poses, the U.S. military uses many exercises to test core strength.

A strong core improves posture and stability. Try this bodyweight plank routine at home. It only takes five minutes.

Your core is, quite literally, at the center of everything you do. It’s what powers your paddle strokes, allows you to reach for a climbing hold, and makes hoisting a heavy pack and carrying it over ...

You’ve probably seen it all over your feeds: Fitness pros and physical therapists talking about “training the deep core.” But unlike crunches or Russian twists, these exercises don’t come with a pump ...

Core strength is more than just achieving sculpted abs—it’s the foundation of movement, balance, and injury prevention. A weak core can lead to poor posture, chronic pain, and decreased athletic ...

Back in the day, sit-ups were the exercise of choice to train the core. We didn’t use the term “core” back then, but if you wanted the kind of abs displayed in Calvin Klein underwear ads, sit-ups were ...

Lately, my core routine has felt staler than week-old sourdough bread. Sure, classic moves like crunches, Russian twists, and planks are great (and effective!), but in order to reap the gains of ...

A quick scan of any gym will show you: Abs exercises are one of the most popular ways people fill their workout time. That’s great—but many folks fall into the trap of prioritizing core workouts in ...