The 4 Best Exercises for Your Core That Aren't Crunches
Photo: Courtesy of Michele Olson
Starting position: Sideways: Lie on your right side with your right forearm on the floor, your hips and legs stacked.
How to do it: Press into floor, straightening left arm upward and lifting hips toward ceiling. For stability and balance, bend your right knee so that your shin makes contact with the ground. Hold for a count of "one Mississippi," then lower. Lift again and repeat. Complete 15 reps on each side.