12. Bicycle Crunches
If you are going to add in a core exercise, it should be a complex one that utilizes both the front and side abdominals. As you gain strength, you can add variety by touching your knee to your elbow, then your fingers to your toes before switching sides. It's a real core challenge!
Lie flat on the floor with your lower back pressed to the ground (pull your navel in to also target your deep abs). Put your hands behind your head, then bring your knees in toward your chest and lift your shoulder blades off the ground, avoiding any pulling on your head or neck. Straighten your right leg and twist your torso so that your right elbow crosses your center line to touch your bent left knee. Keeping your feet lifted and your shoulder blades off the floor, switch sides so that you twist your left elbow to your right knee. Do not release your feet or shoulders to the floor until you have completed 10-20 reps per side.Image Source: POPSUGAR Studios
