Background Change of direction (CoD) is associated with performance and injury in multidirectional sports. CoD consists of different phases (initial acceleration, deceleration, and re-acceleration) ...

Acute subdural haematoma (ASDH) results from traumatic laceration to the brain, from bleeding from the cortical vessels into the subdural space or from acceleration–deceleration injury to the head ...

This reduces the deceleration, which causes the forces involved to be reduced, and consequently serious injuries to be reduced. Seat belts stop you tumbling around inside the car if there is a ...