Position-based assessment of head impact frequency, severity, type, and location in high school American football by Amirhossein Bagherian, Alireza Abbasi Ghiri, Mohammadreza Ramzanpour, James Wallace, Sammy Elashy, Morteza Seidi, Marzieh Memar

“…Clusters for the three factors were also identified according to the characteristics of impacts.Results and DiscussionResults revealed that offensive linemen and running backs experienced a higher normalized frequency and more severe impacts across all head kinematics and brain tissue deformation parameters. …”
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