A Video Analysis of Use of the New 'Concussion Interchange Rule' in the National Rugby League

International Journal of Sports Medicine
Andrew J GardnerChristopher R Levi

Abstract

The National Rugby League (NRL) in Australia introduced a new 'concussion interchange rule' (CIR) in 2014, whereby a player suspected of having sustained a concussion can be removed from play, and assessed, without an interchange being tallied against the player's team. We conducted a video analysis, describing player and injury characteristics, situational factors, concussion signs, and return to play for each "CIR" event for the 2014 season. There were 167 reported uses of the CIR. Apparent loss of consciousness/unresponsiveness was observed in 32% of cases, loss of muscle tone in 54%, clutching the head in 70%, unsteadiness of gait in 66%, and a vacant stare in 66%. More than half of the players who were removed under the CIR returned to play later in the same match (57%). Most incidences occurred from a hit up (62%) and occurred during a tackle where the initial contact was with the upper body (80%). The new concussion interchange rule has been used frequently during the first season of its implementation. In many cases, there appeared to be video evidence of injury but the athlete was cleared to return to play. More research is needed on the usefulness of video review for identifying signs of concussive injury.

Citations

Sep 6, 2017·Brain Injury : [BI]·Andrew J GardnerGrant L Iverson
Jan 14, 2018·Sports Medicine - Open·Andrew J GardnerGrant L Iverson
Sep 29, 2018·British Journal of Sports Medicine·Gavin A DavisPaul McCrory
Jul 25, 2019·Injury Prevention : Journal of the International Society for Child and Adolescent Injury Prevention·Nicholas ArmstrongMichael D Cusimano
May 26, 2018·Sports Medicine - Open·Andrew J GardnerMichael Makdissi
Aug 24, 2017·Sports Medicine - Open·Andrew J GardnerGrant L Iverson
Jan 17, 2020·Injury Prevention : Journal of the International Society for Child and Adolescent Injury Prevention·Christopher TarziMichael D Cusimano
Mar 17, 2021·Journal of Sports Sciences·Darek Sokol-RandellMichael D Cusimano
Mar 9, 2021·Journal of Neurotrauma·Jonathan ReyesCatherine Willmott

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