Electronic mouth guards in AFL aid science Clubs that use the wearable technology aid sport science data collection. An AFL match between Essendon and Adelaide Football Clubs. Essendon trialed the Nexus A9 mouth guards in 2019. Credit: Wikimedia commons. New wearable technology, such as electronic mouth guards, being trialled in AFL (Australian Football League) and other sports will provide data for concussion researchers to better understand the minute causes of concussion. The comprehensive data about speed and acceleration of players upon impact will be collected for use in long-term studies. The electronic technology isn’t now able help diagnose concussions, but it is yielding data essential for understanding underlying causes of impacts to the head.