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  1. Ash Kolstad1,
  2. Luc Nadeau4,
  3. Paul Eliason1,
  4. Luz Palacios-Derflingher1,3,
  5. Claude Goulet4,
  6. Carolyn A. Emery1,2,3
  1. 1Sport Injury Prevention Research Centre, Faculty of Kinesiology, University of Calgary, Calgary, Canada
  2. 2Departments of Paediatrics, Cumming School of Medicine, University of Calgary, Calgary, Canada
  3. 3Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Canada
  4. 4Department of Physical Education, Faculty of Education, Laval University, Québec City, Canada


    Background Policy allowing body checking (BC) increases injury and concussion risk in youth ice hockey players. Hockey Calgary introduced BC policy change in 2015 that disallows BC at the Bantam (ages 13–14) non-elite level (lowest 60% by division of play).

    Objective To compare game offensive performance (OP) between non-elite Bantam players playing in a league allowing BC and players in a league not allowing BC.

    Design Prospective cohort.

    Setting Arenas in Calgary, Alberta.

    Participants Non-elite Bantam games were videotaped in Calgary, Alberta during the 2014–15 (n=348 players) and 2015–16 (n=309 players) playing seasons.

    Assessment of Risk Factors Players from the 2014–15 season played in a league allowing BC, while players from 2015–16 season played in a league where BC was not allowed.

    Main Outcome Measurements Using Dartfish video analysis software, games were analyzed for OP metrics for the puck carrier using the ice hockey adapted Team Sport Assessment Procedure. These metrics included puck possession (conquered puck from an opponent and received pass from a teammate) and puck outcome (successful shot on goal, lost puck to an opponent, and offensive pass to a teammate). Unadjusted incidence rate-ratios (IRRs), clustered by game, were calculated for each puck action per team game between players in Calgary, Alberta 2014–15 (BC allowed) and 2015–16 (BC not allowed).

    Results No differences were found in puck possession metrics [conquered puck IRR=1.07 (95% CI: 1.00,1.16), received pass IRR=1.05 (95% CI: 0.93,1.18)] or puck outcome [successful shot IRR=0.97 (95% CI: 0.86,1.10), lost puck IRR=1.07 (95% CI: 0.98,1.18), offensive pass IRR=0.98 (95% CI: 0.86,1.12)].

    Conclusions There were no differences found across all OP metrics between a non-elite Bantam league allowing BC and a league not allowing BC. There is no evidence to conclude that offensive performance was negatively nor positively affected by Hockey Calgary's decision to disallow BC at Bantam non-elite levels.

    • Injury

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