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Data collection

BD Bobby Dow
DD Dakota Doucet
SV Sree M. Vemu
VB Venkat Boddapati
RM Rex A. W. Marco
TH Takashi Hirase
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Demographics and return to sport (RTS) data were collected. Demographic variables including a player’s age, position, date of injury, and date of return to sport were recorded. Players were categorized by their positions as well as their role as an offensive or defensive player. A player was deemed to have RTS if he played in a single NFL game after the injury as previously defined [10, 11]. Players with multiple injuries per season were counted as separate entries if the player played in a game in between injuries. Available slow-motion game footages were reviewed to identify the mechanism of injury (MOI). A previously described method was utilized for tackle analysis if a tackle was related to the MOI [6].

Injury incidence rates were calculated based on per team play basis. The number of team plays were determined by the NFL and included all team plays of all 32 teams during the 2016 through 2021 seasons [13]. A single exposure, or one team play was defined as one team participating in one offensive, defensive, or special teams play.

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