Give your core a dynamic workout with a medicine ball ...

You might have noticed a rack of weighted balls languishing in the corner of the gym, gathering dust while people work out with dumbbells and kettlebells instead. They’re called medicine balls and ...

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 ...