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 ...
It's available in a bunch of colours too — but we personally love the sage green pictured. The last thing you want is an exercise ball bursting beneath you mid-crunch. This durable number is as ...
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.