Why do softball pitchers experience more anterior shoulder pain?

Ever see softball pitchers do their big, windmill windup prior to a pitch?

MedPage Today
finds a small study shows that it may strain their anterior shoulders more than an overhand throw.

Softball pitchers, who underwent photographic motion analysis and surface electromyography analysis of their biceps, were found to have an increased risk of injury to their biceps, caused by increased “peak biceps brachii muscle activation during the windmill pitch.”

It’s a pretty violent motion, and now there’s data to back up how traumatic it has the potential to be.

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