Long kicks, top of the head impacts and jumping headers resulted in the highest impact kinematics. Median and 95th percentile peak linear and peak angular accelerations were 10.0, 22.2 g, and 765, 2296 rad/s 2, respectively. On average, athletes experienced 1.83 impacts per athlete-exposure, with higher exposure in practices than games/scrimmages. We recorded 1307 video-identified intentional heading impacts and 1011 video-verified sensor impacts. Multi-angle video was obtained and reviewed for all on-field activity to verify mouthpiece impacts and identify contact scenarios. Thirteen female soccer athletes were instrumented with mouthpiece sensors to record on-field head impacts during practices, scrimmages, and games. The objective of the current study was to combine validated mouthpiece sensors with comprehensive video analysis methods to characterize head impact exposure and biomechanics in university varsity women’s soccer. There are limited soccer head impact exposure data to further study brain injury risks. Soccer is a unique sport where players purposefully and voluntarily use their unprotected heads to manipulate the direction of the ball.
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