‘Sandbagging' a Vision Test for Concussion-based Sideline Assessment: An Eye Movement Investigation reveals the Strategies

Athletes may under-report concussion symptoms, leading to inappropriate return-to-play and increased risk of re-injury. Thus, attention has been directed toward tests to identify concussion, such as the K-D, for which longer test times compared to baseline are associated with concussion. There is concern that, in order to facilitate staying in the game in the event of concussion, athletes may attempt to prolong pre-season baseline testing times.