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

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.

Discover why medicine ball workouts are becoming a favorite for home fitness enthusiasts who want full-body results without ...

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

Runners often forget about the power of the core for performance. This group of muscles—which spans from below your chest through your hips, taking up your entire torso—helps you transfer power ...

Ready to ditch endless crunches and finally build a rock-solid core? Your core is a powerhouse encompassing all the muscles from your pelvis to your ribcage – abdominals, obliques, lower back, pelvic ...

Join celebrity trainer and wellness coach Jenna Willis for a 10-minute strength and core workout with class members Paris Nicole and Taylor Ashlynn. You'll start with a quick warmup to wake up your ...

A strong core means stability, fewer injuries, and better posture and balance during exercise. While you might be familiar with the abdominal exercises that engage the outer abdominal muscles — think ...

This article is part of CNN Underscored’s The Reset, an editorial package featuring all our articles aimed at giving you the information and product recommendations to help achieve any and all New ...

Known for her thrilling, energetic performances on "Dancing with the Stars", alumni Lindsay Arnold is no stranger to staying active. Fans of her 30-minute dance circuit workout will love this ...