Video Review of the Frequency and Assessment of Head Impacts During the FIFA World Cup 2022TM

This is an exploratory observational study. Broadcasted video footage is used to review all head impacts during all 64 matches in the football tournament. All head impacts are registered, and simple descriptive statistics are used to create overviews of the head impact characteristics, including video signs of potential concussion, observed contact, location of the head impact, presence and timing of medical assessment, whether there was foul play and sanction, and if the player was substituted.