Background The number and magnitude of head impacts have been assessed in-vivo using
inertial sensors to characterise the exposure in various sports and to help understand their …

Youth participation in contact and collision sports, particularly tackle football, is associated
with exposure to repetitive head impacts during a time period when tremendous brain …

Various studies have characterized head kinematics in specific everyday activities by
looking at linear and/or rotational acceleration characteristics, but each has evaluated a …

OBJECTIVE There is a growing body of literature informing efforts to improve the safety of
football; however, research relating on-field activity to head impacts in youth football is …

Repetitive head impact (RHI) exposure in collision sports may contribute to adverse
neurological outcomes in former players. In contrast to a concussion, or mild traumatic brain …

Approximately 3.5 million youth and adolescents in the US play football, a sport with one of
the highest rates of concussion. Repeated subconcussive head impact exposure (HIE) may …

Purpose Wearable sensors are used to measure head impact exposure in sports. The Head
Impact Telemetry (HIT) System is a helmet-mounted system that has been commonly utilized …

Many head acceleration events (HAEs) observed in youth football emanate from a practice
environment. This study aimed to evaluate HAEs in youth football practice drills using a …

Objectives Non-tackle American football is growing in popularity, and it has been proposed
as a safer alternative for young athletes interested in American football. Little is known about …

With the concern of concussion risk and repetitive head impacts in youth football,
organizations have adopted rules that limit contact during practice. However, rule changes …