PMC

Cumulative distribution functions for linear and rotational accelerations show that the distribution of impacts were right skewed and heavily weighted toward low magnitude impacts

Comparison of helmet impact location distributions between youth, high school, and college football. Youth players impact the side of the helmets more and rear of their helmets less than high school and college players

The helmets of youth football players were instrumented with the 6DOF head acceleration measurement device. Players wore instrumented helmets for every game and practice they participated in. Each time an instrumented player experienced a head impact, data were collected and then wirelessly transmitted to a computer on the sideline