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MAN-MADE JUMPS IN TERRAIN-PARKS AND THE RISK OF SEVERE SKI-PATROL REPORTED INJURIES IN ALPINE SKIERS AND SNOWBOARDERS
  1. Claude Goulet1,
  2. Denis Hamel2,
  3. Benoit Tremblay1,3,
  4. Olivier Audet4,
  5. Brent E. Hagel5,6,7
  1. 1Department of Physical Education, Faculty of Education, Laval University, Québec, Canada
  2. 2Québec Public Health Institute, Québec, Canada
  3. 3Safety Promotion Unit, Recreation and Sport Sector, Québec Ministry of Education, and Higher Education, Trois-Rivières, Canada
  4. 4Department of Kinesiology, Faculty of Medicine, Laval University, Québec, Canada
  5. 5Sport Injury Prevention Research Centre, Faculty of Kinesiology, University of Calgary, Calgary, Canada
  6. 6Departments of Paediatrics and Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Canada
  7. 7Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Canada

    Abstract

    Background Two ski areas in Québec, Canada, removed man-made jumps from their terrain parks (TPs) from seasons 2007–08 to 2009–10. Jumps were reintroduced starting in season 2010–11.

    Objective To determine if man-made jumps in TPs are associated with severe alpine ski and snowboard injuries.

    Design Retrospective study using ski-patrol Injury Report Forms (IRFs).

    Setting All ski areas with a TP in Québec.

    Patients (or Participants) Skiers and snowboarders who reported to the ski patrol with a TP injury during seasons 2000–01 to 2014–15, at all Québec ski areas with TP (two where jumps were removed, and others without jump removal).

    Interventions (or Assessment of Risk Factors) Risk factor data and injury outcomes were collected through IRFs.

    Main Outcome Measurements Severe injuries were defined based on type of injury or ambulance evacuation. The proportions of severe injuries before jump removal (2000–01 to 2006–07) and during jump reintroduction (2010–11 to 2014–15) were compared with proportions during jump removal (2007–08 to 2009–10). Logistic regression analysis was used to adjust the comparisons for age, sex, skill level, helmet use, and type of activity. Generalized Estimating Equations were used to account for potential ski area clustering of outcomes.

    Results At the hills that removed jumps (4,006 IRFs analysed), the crude proportion of severe TP injuries was 19.3% before removal, 14.5% during removal, and 24.3% at reintroduction. The odds of severe injury were higher before removal (adjusted odds ratio [AOR]: 1.39; 95% CI: 1.03–1.87) and during reintroduction (AOR: 1.90; 95% CI: 1.52–2.37). At other hills over the same time period (21,449 IRFs), there was no change before (23.7%) and during (22.0%) jump removal (AOR: 1.07; 95% CI: 0.94–1.21), but the proportion of severe injuries increased after reintroduction (26.4%; AOR: 1.26; 95% CI: 1.10–1.43).

    Conclusions Results suggest that removing man-made jumps from TPs may prevent severe injuries.

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