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 ...

Whereas crunches specifically target your ab muscles ... exercises done in a prone — face-down — position on an exercise ball are just as effective, which may be a helpful alternative to ...

3. Add more resistance to this exercise by holding a medicine ball or dumbbell with both hands. Twist the ball towards each knee when you do the crunch on each side. 4. If you want to modify it to ...

Learn more about the benefits of reverse crunches, including why they are one of my go-to moves for targeting the lower abs. Plus, how to perform them correctly and other exercises that will build ...

While doing crunches and situps may activate the abs, these exercises don't target as many ... Extend your arms straight out while holding a medicine ball. Perform a lunge then rotate your torso ...