title: The ultimate frisbee injury study: the 2007 Ultimate Players Association College Championships.
abstract: OBJECTIVE
  To quantify and characterize the injuries incurred by ultimate players during the 2007 Ultimate Players Association College Championships.
  
  
  METHODS
  Cross-sectional study.
  
  
  METHODS
  The Ultimate Players Association College Championships in Columbus, Ohio, in May 2007.
  
  
  METHODS
  Athletes who left the field of play due to injury time-outs (ITOs). There were 107 recorded ITOs.
  
  
  METHODS
  During the 3 days of the 2007 College Championships, 86 games were observed by the research staff. Athletes calling an ITO were interviewed. Sex, activity at time of injury, type of injury, and associated contact, if any, were recorded.
  
  
  METHODS
  Return to play, injury type, and injured body part.
  
  
  RESULTS
  One injury prevented return to play in each of the 2 sex divisions, equivalent to 1.66 per 1000 athlete-exposures in championships bracket games. The majority of ITOs were related to contact, 53% in the men's division and 68% in the women's division. The lower extremities were injured in 53% and 51% of cases in the men's and women's divisions, respectively. Laying out was one of the most common activities at time of ITO (29% and 22% in men's and women's divisions, respectively) and accounted for all of the men's closed head injuries and 2 of the 3 women's closed head injuries.
  
  
  CONCLUSIONS
  There was a low rate of play-ending injuries. There were no statistically significant associations. Physical contact and laying out were frequently linked with ITO.
authors.affiliation: Minor and James Medical, Seattle, Washington 98104, USA. Leslianne.Yen@minorandjames.com
authors.forename: Leslianne E
authors.initials: LE
authors.lastname: Yen
authors.forename: Andrew
authors.initials: A
authors.lastname: Gregory
authors.forename: John E
authors.initials: JE
authors.lastname: Kuhn
authors.forename: Ross
authors.initials: R
authors.lastname: Markle
mesh_terms: D001265:Athletic Injuries / Q000453:epidemiology*; D003430:Cross-Sectional Studies; D005260:Female; D016489:Head Injuries, Closed / Q000453:epidemiology; D006801:Humans; D035002:Lower Extremity / Q000293:injuries; D008297:Male; D009120:Muscle Cramp / Q000453:epidemiology; D014481:United States / Q000453:epidemiology