The retrospective study of 18 MLB players who were hit by pitches in the helmet during the 2009 and 2010 seasons examined the concussion diagnoses and other factors related to the incident. There were nine players diagnosed wit ha concussion, which was more common during posterior impact than anterior impact. The study also found:
• 86.2 miles per hour was the 25 percent logistical regression concussion risk threshold for pitch velocity
• 1.3 days was the average days missed as a result of the injury
• First responders took an average of 65 seconds to decide whether the player would be removed or return to play
• Most of the impact locations were different from those in the current National Operating Committee on Standards for Athletic Equipment standard tests
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Study Examines Baseball-to-Helmet Impact in MLBWritten by Laura Miller | December 03, 2012
A new study published in the American Journal of Sports Medicine analyzes baseball-to-helmet impact in Major League Baseball to determine concussion rate for batters.
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