And we're going to go down to the floor for crunch. If you can ... If you have more than one medicine ball, you might find that you want a lighter one for some exercises and a heavier one for ...

Crunches, or V sit-ups ... Plank on the Ball You will need an exercise ball for this plank variation. Follow these steps to perform the move: Kneel before an exercise ball, and drape your abs ...

Hold the slam ball above your chest with your ... In fact, some trainers prefer other abs exercises like planks. Why? “Both ...

We're going to use an ab ball and a floor mat. Make sure you have enough room to spread out. Let's start with a waist crunch. Have a seat on the exercise mat. Now, what I want you to do is lie back.