Don't just walk by your stability ball! It's one of the best fitness tools you can own, so put yours to good use with these incredibly effective moves. Get ready to target your arms, abs, butt, and legs — you'll definitely be sore tomorrow.
Weak glutes and tight hip flexors cause your pelvis to tilt forward, pushing your abdomen out and creating that no-good belly pooch. Single-Leg Hip Extension Lie faceup with your arms out to the sides, right knee bent, left leg straight and raised a few