That's right—we're talking about the torso rotation machine. This is the Chubby Checker–inspired ab machine you sit in to do ...

Reason: "Your transverse abdominis muscle acts like a corset when dropping the legs to protect and support the body and spine ...

Standing ab exercises target your core from all angles for balanced stability. Here're standing ab exercises with dumbbells, ...

Reverse crunch to leg lifts target the lower abs, an area that often gets neglected. It combines two effective core exercises into one seamless flow. Reverse crunches lift and tighten the lower belly ...

The end result of all this work? A lower back that’s armour-plated against persistent pain, and the ability to move ...

Plank variations are also amazing for working out multiple core muscles at the same time. Begin with a simple plank by ...

Keeping a strong core is vital for good health and stability, particularly if you sit at a desk for long hours ...

No matter which variations you follow, crunches have the advantage over sit-ups of being able to better target abdominal muscles. "Because the movement is smaller, you can control momentum more," ...

This exercise is a compound movement that combines a lunge (which targets the legs) and a twisting movement (which targets the oblique muscles). Austin begins with her feet spread wide on the mat. Her ...