The four main muscles of the deep core—transverse abdominis, multifidus, pelvic floor and the diaphragm—work together to keep ...

Better posture. Weak upper abs often result in poor posture and spinal misalignment, but by targeting these muscles, you can ...

Unless you're, say, attempting to break the Guinness World Record for the abdominal plank (currently standing at a tediously ...

Standing core workouts are a productive way to spruce up your training routine. They’re total time-savers that engage your upper and lower body at the same time and can be performed anywhere. Plus, ...

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.

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 ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images While classic core exercises like sit-ups, planks and crunches are ...

This TRX upper body workout will benefit your running, but that’s not the only (or even the most important) reason to do it. “Having a strong upper half is integral to simply functioning well,” ...

Everything you need to know about high-intensity interval training to help you hit the ground running in 2026—including a low ...

Of course, that speed can be attributed to the 60 to 70ish miles (and high-intensity workouts) Purrier logs each week, but the former NCAA Champion—who broke the University of New Hampshire mile ...

The burning sensation of building core strength can be incredibly satisfying, whether you’re holding a plank or struggling to finish your last set of crunches. That burn might bring you a sense of ...