Here's a great way to build your core while lying down (and without crunches). In this video, fitness expert Kristin McGee demonstrates the Swan Dive exercise, which strengthens your back…

Stretch and strengthen your abs at the same time with a Supine Twist. In this video, fitness expert Kristin McGee demonstrates the proper way to get into this relaxing and…

The plank pose is a great workout for your whole body, from your arms and back to your core. Watch this video to see Kristin McGee demonstrate the perfect plank…

Need a killer ab exercise? Try doing the Standing Side Crunch. In this video, fitness expert Kristin McGee demonstrates how to use a stability ball to build a stronger core.

Combine two ab-strengthening workouts into one by doing planks on a stability ball. Fitness expert Kristin McGee shows us how to plank on a stability ball for sculpted abs. Watch…

Here's a great way to strengthen your obliques for a tighter core. In this video, fitness expert Kristin McGee shows you how to use a stability ball to do the…

Tighten your core and sculpt your obliques with this calorie-torching exercise. In this video, fitness expert Kristin McGee demonstrates how to do Medicine Ball Russian Twists to tone your abs.

Adding a stability ball makes an ab workout even more challenging. In this video, fitness expert Kristin McGee demonstrates how you can do the Jumping Jack Reach move on a…

This is a great move for targeting your abs. In this video, fitness expert Kristin McGee shows us how to do the Low-Belly Leg Reach, which strengthens your ab muscles…

Who knew an ab workout could be so much fun? In this video, fitness expert Kristin McGee shows us how to use a Hula Hoop (yes, really!) to tighten your…