A simple yet powerful movement trusted by U.S. fitness experts to boost core strength, stability, and athletic performance.

Put simply, good core stability is one of the most effective ways to prevent injuries and improve running efficiency. The groups of muscles that make up your core section provide essential support so ...

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.

You deserve a better ab workout than crunches. Strength training can help you build an athletic core. Equipment like a slam ball or medicine balls provides a more dynamic workout for gains. Stability ...

In the third installment of our six-part core lab, Tonal Instructors Dr. Liz Letchford & Coach Paul Wright guide you through a workout to maximize your stability. This conditioning workout consists of ...

Struggling to hold a 2-minute plank? Learn the correct plank technique, effective training tips, and common mistakes that ...

If you want to run faster, farther, or pain-free, one area you should definitely focus on in your strength workouts: your core. Building your core stability can not only enhance your performance, but ...

When people think about the golf swing these days, often the first thing that comes to mind is distance and how to hit it farther thanks to the Bryson effect. But very few people think about what they ...