Rugby league has been identified as a contact sport with a high incidence of concussion. Research has been conducted to describe incidence and mechanisms of concussion in rugby league, however the risks associated with injury events (shoulder, hip, head to head) are unknown. The purpose of this study was to describe the common injury events leading to concussion in the National Rugby League and compare these events through analysis of dynamic response and brain tissue deformation. Twenty-seven impact videos of concussive injuries were physically reconstructed to obtain linear and rotational accelerations of the head. Dynamic response data were input into the University College Dublin Brain Trauma Model (UCDBTM) to calculate maximum principal strain (MPS). Head-to-head events produced a short duration event with an average peak linear and peak rotational acceleration of 205g and 15,890 rad/s², respectively, which were significantly greater than the longer duration hip-to-head (24.7g and 2650 rad/s²) and shoulder-to-head (24.2g and 3280 rad/s²) impacts. There were no differences in MPS between events. These results suggest that risk of strain to the brain may be produced by short and long duration acceleration events. Thus, both of these accelerations need to be accounted for in the development of improved head and body protection in rugby. In addition, this data demonstrates that these events cause a risk of concussion requiring efforts to limit or modify how energy is transferred to the head.

橄榄球联赛被认为是一种发生脑震荡的接触运动。已经进行了研究以描述橄榄球联赛中脑震荡的发生率和机制，但是与伤害事件（肩，髋，头对头）相关的风险尚不清楚。这项研究的目的是描述导致全国橄榄球联盟脑震荡的常见伤害事件，并通过分析动态响应和脑组织变形来比较这些事件。物理重建了27个冲击性撞击视频，以获取头部的线性和旋转加速度。将动态响应数据输入到都柏林大学的脑部创伤模型（UCDBTM）中，以计算最大主应变（MPS）。分别为g和15890 rad / s ²，远大于较长时间的髋对头（24.7 g和2650 rad / s ²）和肩对头（24.2 g和3280 rad / s ²）的影响。事件之间的MPS没有差异。这些结果表明，短期和长期的加速事件可能会造成大脑劳损的风险。因此，在开发改进的橄榄球的头部和身体保护时，必须考虑到这两种加速度。此外，这些数据表明，这些事件会引起脑震荡，需要努力限制或修改能量转移到头部的方式。