Your core is made up of the muscles in your abdomen, back, and pelvis. Do you do exercises for your core? If so, you’ve probably heard of the “bridge” and the “plank.” But there are many other exercises you can do. If you’re not sure how to strengthen your core, work with a certified personal trainer to learn how. Keeping your core strong may improve balance and stability during everyday movements and exercise. A strong core may help your posture. It may also help you side step lower back pain. Make sure to talk with your doctor before starting any new fitness routine.