作者: Neil S. Kumar , Matthew Chin , Craig O’Neill , Andre M. Jakoi , Loni Tabb
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摘要: Background:There are few data examining the short-term effects of concussions on player performance upon return to play. This study examined changes in on-field and influence epidemiologic factors play.Hypothesis:On-field is different players who within 7 days after concussion compared with miss at least 1 game.Study Design:Case-control study; Level evidence, 3.Methods:Players National Football League were active during 2008 2012 seasons considered for inclusion. Weekly injury reports identified concussed players. All played 4 games before game (sentinel game) year year). Players had missed secondary another or sustained a second sentinel excluded. The players’ league profiles used determine age, position, body mass index, career experience, missed. Pro...