A strong core is essential for being able to safely and effectively perform various exercises and carry out everyday tasks. Ab exercises belong in nearly everyone’s workout program, but which ...

Abs are often an afterthought, tacked onto the end of your workout as a few basic sit-ups. But like any muscle group, to achieve strength and definition, you’ve got to step things up to avoid the ...

For a twist, add a medicine ball: Keep your arms straight and core engaged during this move. (Getty Images) I'll admit it: For years, I avoided adding a medicine ball to my workouts. Frankly, I was ...