Biomechanics Consulting and Research (Biocore), LLC, 1621 Quail Run, Charlottesville, VA, 22911, USA.
Center for Applied Biomechanics, University of Virginia, 4040 Lewis and Clark Drive, Charlottesville, VA, 22911, USA.
Ann Biomed Eng. 2020 Nov;48(11):2542-2554. doi: 10.1007/s10439-020-02657-z. Epub 2020 Oct 19.
Consideration of position-specific features of the NFL concussion environment could enable improved risk mitigation through the design of position-specific helmets to improve self-protection as well as protection for the other player with whom the contact occurs. The purpose of this paper is to quantify position-specific features of scenarios resulting in concussions to NFL players, and the players they contact, by reviewing all game footage (broadcast and non-broadcast) over 4 seasons. Position-specific features were documented for 647 concussions in which a primary exposure could be visualized, including impact source, helmet impact location, activity, and the other player with whom the contact occurred. Findings include the over-representation of helmet-to-ground impacts to the rear of the quarterback's helmet, the high frequency of impacts to the side (upper) location of both concussed players and the players they contacted regardless of position, and distinct differences in the circumstances of concussions to cornerbacks and safeties. The study shows that some features of concussion scenarios are common to all positions, but several position-specific features exist and can inform the design of position-specific helmets for NFL players.
考虑到美式橄榄球中脑震荡环境的特定位置特征，可以通过设计特定位置的头盔来提高自我保护和保护与接触发生的其他球员的能力，从而改善风险缓解。本文的目的是通过审查 4 个赛季的所有比赛录像（直播和非直播），量化导致美式橄榄球运动员和他们接触的运动员脑震荡的特定位置特征。对 647 次可观察到主要暴露的脑震荡进行了特定位置特征的记录，包括撞击源、头盔撞击位置、活动以及与撞击发生的其他球员。研究结果表明，头盔与地面的后部对四分卫头盔的撞击过度代表、撞击到两个脑震荡球员和他们接触的球员的侧面（上部）位置的高频撞击，以及角卫和安全卫脑震荡情况的明显差异。该研究表明，一些脑震荡场景的特征对所有位置都是常见的，但也存在一些特定位置的特征，可以为 NFL 球员设计特定位置的头盔提供信息。
