This no-equipment movement is helping people rebuild upper-back strength, improve posture, and feel stronger at home—fast.
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The Superman exercise is so simple, yet improves posture and back strength 'like nothing else' - here's how to do it
No one is immune to a little back pain now and again, so luckily, there's the aptly-named Superman exercise. It's a simple, accessible move that improves spine flexion, eases stiffness, and improves ...
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