5 Quick Moves to Get Killer Abs

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Standing Knee Cross Crunch

Not all crunches need to be done lying down. The knee cross crunch is a great way to work your upper, lower, and mid-abdominal muscles. Stand with your feet shoulder length apart and your arms resting at your side. Place your hands behind your head and make sure your hands are intertwined. Twist at the waist and slowly while bringing your right elbow towards your left knee, lifting your left knee off the floor. Try for at least 15 reps and repeat with the other side.