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Got Upper Back Pain? Try the 10-Second Stretch a Biomechanist Swears By

Got Upper Back Pain? Try the 10-Second Stretch a Biomechanist Swears By

RunnersWorld - By Marty Munson

We used to move our arms and spines in all kinds of ways—think foraging, hunting, carrying. Today? Our arms mostly hover in front of us as we drive, tap on a keyboard, prep food, and help power us forward when we run. A lifetime of not using our upper bodies well can limit mobility in the arms, …

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