A properly placed head restraint where one can sufficiently protect his/her head lower the chances of head injury by up to 35% during a rear-end collision.
In contrast to a properly adjusted head restraint, research suggests that there may be an increased risk of neck injuries if the head restraint is incorrectly positioned.
During a rear-end collision, the presence of an effective head restraint behind the occupants head can limit the differential movement of the head and torso.
Automatically adjusting head restraint refers to a head restraint that automatically adjusts the position of the head restraint when the seat position is adjusted.