Sports Medicine Research: In the Lab & In the Field: The Timing of Concussions During High School Sporting Events (Sports Med Res)

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Monday, July 30, 2018

The Timing of Concussions During High School Sporting Events

Sports-Related Concussion Occurrence at Various Time Points During High School Athletic Events

Covassin T, Petit KM, Savage JL, Bretzin AC, Fox ME, Walker LF & Gould D. American Journal of Sports Medicine. doi: 10.1177/0363546518780225.
Take Home Message: The risk for concussion is greatest during the middle of a practice or game in high school sports.

Identifying when, where, and why most concussions occur is important to later implement changes to reduce the risk of concussion. One factor that has been ignored is the timing when a concussion occurs during practices and games. Therefore, the authors aimed to identify when during a practice or competition a concussion is likely to occur in high school sports. They used data from the Michigan High School Athletic Association’s Head Injury Reporting System, which collected data on 4,314 concussions from 182,719 athletes across 13 sports during the 2015-2016 academic year. A healthcare provider diagnosed each concussion that occurred during a sanctioned practice or competition and required an athlete to be withheld from sport. An athletic trainer, coach, or school official reported if a concussion occurred during the beginning, middle, or final third of practice or competition. The authors examined the occurrence of concussion overall and for each sport separately and then checked if concussions were more common at the beginning, middle, or end of practices and games. The authors found that ~2.4 athletes for every 100 athletes experienced a concussion that year. Men’s football (4.9 per 100 athletes) and women’s soccer (3.0 per 100 athletes) had the highest rate of concussion among males and females. An athlete was more likely to sustain a concussion during the middle (4.9 times more) and end (3.3 times more) versus the beginning of games and practices combined. An athlete was also 50% more likely to sustain a concussion during the middle versus the end of a game or practice. Similar patterns were found in practices and games when separated.

These findings are among the first to assess when a concussion is more likely to occur during a practice or game. The middle of games and practices demonstrated a higher risk for concussions than the beginning or end of sporting events. This complements a recent post on Sports Med Res that demonstrated that ankle sprains are more common in the 2nd, 3rd, or 4th quarter of a game than the first. These findings are important as clinicians are not always able to attend practices and games due to time constraints and multiple sport responsibilities –  especially at the secondary school level. Clinicians could use these results, along with other injury surveillance studies, to maximize where their medical care is best suited during sport sessions for their clinical practice. The authors findings also indicate sports such as men’s football and women’s soccer have higher concussion incidences than others. Clinicians may not be able to attend all practices and games, especially with numerous sport healthcare responsibilities. By understanding where and what sports injuries are more likely to occur, clinicians can maximize their time and provide optimal healthcare.

Questions for Discussion: Do you use injury statistics to determine where your clinical expertise is likely more needed at? If so, how has this helped your clinical practice? If not, what are some barriers to incorporating this branch of evidence-based medicine? Lastly, do these findings change the way you intend to manage your medical coverage time?

Reviewed by: Jeffrey Driban

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