Your erector spinae muscles run along both sides of your spine—and when they’re active, they do a lot more than just “stand you up.” 💪 They pull your pelvis into an anterior tilt, increase the curve in your low back, and even lift your chest and ribcage. That means they play a key role in how you sit, stand, walk, and train. If you’ve got uneven hips or posture imbalances, learning how to engage your erectors intentionally can help restore symmetry. They can lift a dropped hip, level out a croo

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