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RISUS study: Rugby Injury Surveillance in Ulster Schools
  1. H A P Archbold1,
  2. A T Rankin2,
  3. M Webb3,
  4. R Nicholas1,
  5. N W A Eames1,
  6. R K Wilson4,
  7. L A Henderson1,
  8. G J Heyes1,
  9. C M Bleakley5
  1. 1Royal Victoria Hospital, Belfast, UK
  2. 2Bupa Health Clinic, Belfast, UK
  3. 3Kingspan Stadium, Ulster Rugby, Belfast, UK
  4. 4Musgrave Park Hospital, Belfast, UK
  5. 5Ulster University, Sport and Exercise Science Research Institute, Newtownabbey, UK
  1. Correspondence to Dr CM Bleakley, Ulster University, Sport and Exercise Science Research Institute, Newtownabbey BT370QB, UK; c.bleakley{at}ulster.ac.uk

Abstract

Objective To examine injury patterns in adolescent rugby players and determine factors associated with injury risk.

Design Prospective injury surveillance study.

Setting N=28 Grammar Schools in Ulster, Ireland (2014–2015 playing season).

Participants 825 adolescent rugby players, across in 28 school first XV rugby squads; mean age 16.9 years.

Main outcome measures Injuries were classified by body part and diagnosis, and injury incidence using injuries per 1000 match hours of exposure. HRs for injury were calculated through Cox proportional hazard regression after correction for influential covariates.

Results A total of n=426 injuries were reported across the playing season. Over 50% of injuries occurred in the tackle situation or during collisions (270/426), with few reported during set plays. The 3 most common injury sites were head/face (n=102, 23.9%), clavicle/shoulder (n=65, 15.3%) and the knee (n=56, 13.1%). Sprain (n=133, 31.2%), concussion (n=81, 19%) and muscle injury (n=65, 15.3%) were the most common diagnoses. Injury incidence is calculated at 29.06 injuries per 1000 match hours. There were no catastrophic injuries. A large percentage of injuries (208/424) resulted in absence from play for more than 28 days. Concussion carried the most significant time out from play (n=33; 15.9%), followed by dislocations of the shoulder (n=22; 10.6%), knee sprains (n=19, 9.1%), ankle sprains (n=14, 6.7%), hand/finger/thumb (n=11; 5.3%). 36.8% of participants in the study (304/825) suffered at least one injury during the playing season. Multivariate models found higher risk of injury (adjusted HR (AHR); 95% CI) with: higher age (AHR 1.45; 1.14 to 1.83), heavier weight (AHR 1.32; 1.04 to 1.69), playing representative rugby (AHR 1.42; 1.06 to 1.90) and undertaking regular strength training (AHR 1.65; 1.11 to 2.46). Playing for a lower ranked team (AHR 0.67; 0.49 to 0.90) and wearing a mouthguard (AHR 0.70; 0.54 to 0.92) were associated with lower risk of injury.

Conclusions There was a high incidence of severe injuries, with concussion, ankle and knee ligament injuries and upper limb fractures/dislocations causing greatest time loss. Players were compliant with current graduated return-to-play regulations following concussion. Physical stature and levels of competition were important risk factors and there was limited evidence for protective equipment.

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