Fig. 1.

Example kinematics of the 6 types of head impacts and visualization of the 6 datasets used in this study with heatmap. (A) The magnitude of linear acceleration at the brain center of gravity, (B) the magnitude of angular velocity, and (C) the heatmap of features of all samples. CF = college football; HM = head model; MMA = mixed martial arts; NASCAR = National Association for Stock Car Auto Racing car crash impacts; NFL = National Football League; NHTSA = National Highway Traffic Safety Administration car crash impacts.