Suchergebnisse

Injury prevention research to reduce youth-sport related injuries
Unintentional injuries are the leading cause of disability in youth (ages 10-19), with >50% sport-related.(1) One in 3 youth will seek medical attention for a sport-related injury and 1 in 10 for a concussion each year.(2) Injury leads to reduced physical activity and increased risk of chronic disease and obesity, which has risen ~20% in the past decade.(3) Prevention is the best medicine, and evidence-informed primary injury prevention solutions can ensure lifelong sport participation and all the associated health benefits. The Sport Injury Prevention Research Centre (SIPRC)at the University of Calgary aims to eliminate injuries and their consequences that prevent youth from lifelong participation in sport.

Le hockey est l'un des sports les plus populaires auprès des enfants et adolescents canadiens. Les avantages de l'activité physique et de la participation à des activités sportives pour la santé sont bien établis, mais on s'inquiète de plus en plus de la fréquence et de la gravité des blessures liées au hockey, notamment les commotions. Les études déterminent constamment que la mise en échec est le principal mécanisme associé aux blessures, y compris les commotions, chez les jeunes hockeyeurs. Les politiques pour retarder la mise en échec jusqu'aux ligues bantams (lorsque les participants ont de 13 à 14 ans) réduiront les risques de blessures et de commotions chez les jeunes hockeyeurs. Il faudrait éliminer la mise en échec au hockey non élite et réévaluer l'âge auquel l'autoriser au hockey compétitif. Ces deux initiatives exigent des changements de politiques dans bien des provinces et des territoires et doivent être réévaluées de manière prospective à la lumière des recherches émergentes.

BACKGROUND: To reduce the risk of concussion in youth ice hockey, Hockey Canada implemented a national "zero tolerance for head contact" (HC) policy in 2011. A previous cohort study revealed higher concussion rates after this implementation in players aged 11 to 14 years. However, it is unknown whether the elevated risk was due to higher HC rates or factors such as increased concussion awareness and reporting. PURPOSE: To compare the rates of primary and secondary HCs and HC policy enforcement in elite U15 ice hockey leagues (players <15 years) before (2008-2009) and after (2013-2014) the zero-tolerance policy change. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: A total of 32 elite U15 games before (n(2008-2009) = 16; 510 players) and after (n(2013-2014) = 16; 486 players) HC policy implementation were video recorded. Videos were analyzed with validated criteria for identifying HC types (primary/direct contact by players [HC1], secondary/indirect contact via boards, glass, or ice surface [HC2]) and other player-to-player contact behavior. Referee-assessed penalties were cross-referenced with the official Hockey Canada casebook, and penalty types were displayed using proportions. Univariate Poisson regression (adjusted for cluster by team game, offset by game length [minutes]) was used to estimate HC incidence rates (IRs) and incidence rate ratios (IRRs) between cohorts. RESULTS: A total of 506 HCs were analyzed, 261 before HC policy implementation (IR, 16.6/100 team minutes) and 245 after implementation (IR, 15.5/100 team minutes). The HC1 rate (IRR, 1.05; 95% CI, 0.86-1.28) and HC2 rate (IRR, 0.74; 95% CI, 0.50-1.11) did not significantly differ before versus after implementation. Only 12.0% and 13.6% of HC1s were penalized pre- and postimplementation, respectively. Before implementation, HC1s were commonly penalized as roughing or elbowing penalties (59%), while after implementation, HC1s were penalized with the HC penalty (76%), and only 8% as roughing or elbowing. CONCLUSION: Despite ...