Frequency and location of head impact exposures in individual collegiate football players.

@article{Crisco2010FrequencyAL,
  title={Frequency and location of head impact exposures in individual collegiate football players.},
  author={Joseph J. Crisco and Russell Fiore and Jonathan Beckwith and Jeffrey J. Chu and Per Gunnar Brolinson and Stefan M. Duma and Thomas W. McAllister and A. C. Duhaime and Richard M. Greenwald},
  journal={Journal of athletic training},
  year={2010},
  volume={45 6},
  pages={
          549-59
        }
}
CONTEXT Measuring head impact exposure is a critical step toward understanding the mechanism and prevention of sport-related mild traumatic brain (concussion) injury, as well as the possible effects of repeated subconcussive impacts. OBJECTIVE To quantify the frequency and location of head impacts that individual players received in 1 season among 3 collegiate teams, between practice and game sessions, and among player positions. DESIGN Cohort study. SETTING Collegiate football field… 

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...

References

SHOWING 1-10 OF 30 REFERENCES

IN VIVO STUDY OF HEAD IMPACTS IN FOOTBALL: A COMPARISON OF NATIONAL COLLEGIATE ATHLETIC ASSOCIATION DIVISION I VERSUS HIGH SCHOOL IMPACTS

TLDR
Differences in the frequency and magnitude of head acceleration after impact exist between a Division I college team and a high school team, and skill position players typically sustain the highest-level impacts.

Analysis of Real-time Head Accelerations in Collegiate Football Players

  • S. DumaS. Manoogian J. Crisco
  • Medicine
    Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine
  • 2005
TLDR
The primary finding of this study is that the helmet-mounted accelerometer system proved effective at collecting thousands of head impact events and providing contemporaneous head impact parameters that can be integrated with existing clinical evaluation techniques.

Analysis of linear head accelerations from collegiate football impacts

TLDR
This study presents an extremely large data set from human head impacts that provides valuable insight into the lower limits of head acceleration that cause mild traumatic brain injuries.

HEAD IMPACT SEVERITY MEASURES FOR EVALUATING MILD TRAUMATIC BRAIN INJURY RISK EXPOSURE

TLDR
This study is the first to the authors' knowledge to quantify improvements in the sensitivity of a biomechanical measure to incidence of concussion when impact location is considered and develops a novel measure of head impact severity combining these measures into a single score that better predicts the incidence of concussions.

Concussion in Professional Football: Location and Direction of Helmet Impacts—Part 2

TLDR
The location, direction, and severity of helmet impacts causing concussion in the National Football League have been defined from analysis of game video and laboratory reconstruction and define the circumstances in which helmets need to reduce head injury risks in professional football.

Comparison of impact data in hockey, football, and soccer.

PURPOSE To compare accelerational forces to the head in high school-level football, hockey, and soccer athletes. METHODS Acceleration of impact was measured within the helmet of high school hockey

Traumatic brain injury in high school athletes.

TLDR
Rates of MTBI vary among sports and none of the 10 popular high school sports the authors studied is without the occurrence of an MTBI, with football accounting for about 63% of cases.

Head acceleration is less than 10 percent of helmet acceleration in football impacts.

TLDR
It is shown that the response of the head and the helmet vary greatly and the in-helmet system matches theHead acceleration is less than 10 percent of helmet acceleration in football impacts; moreover, the HIT System is able to accurately measure the head acceleration.

Injury patterns in selected high school sports: a review of the 1995-1997 seasons.

TLDR
An inherent risk of injury is associated with participation in high school sports based on the nature of the game and the activities of the players, and injury prevention programs should be in place for both practices and games.

Validation of a noninvasive system for measuring head acceleration for use during boxing competition.

TLDR
The instrumented boxing headgear (IBH) is a valid system for measuring head acceleration and impact location that can be integrated into training and competition.