- Lie flat on the floor with your lower back pressed to the ground (pull your abs down to also target your deep abs). Interlace your fingers, and put your hands behind your head.
- Bring your knees in toward your chest, and lift your shoulder blades off the ground.
- Straighten your right leg out to about a 45-degree angle to the ground while turning your upper body to the left, bringing your right elbow toward the left knee. Make sure your rib cage is moving and not just your elbows.
- Switch sides, and do the same motion on the other side to create the "pedaling" motion. This completes one rep.
- Repeat 16 reps total.
Once you've finished your first round, be sure to repeat this four-move routine at least three more times for a complete workout.