The recent hit by Atlanta Falcons defensive back Dunta Robinson on the Eagles' DeSean Jackson, which forced both players to leave the game with concussions, demonstrated the results of collisions involving the head.
This concern over head injuries and recent research have prompted dramatic changes in football helmet technology. Manufacturers like Riddell, Schutt and Xenith have been rapidly introducing newer headgear designed to reduce the number of concussions.
Among the popular features on the latest headgear are air bladders that can be inflated to fit a player's head size and shape. The bladders are designed to hold the head steady during a collision so that it doesn't bounce off the interior of the helmet like the clapper in a bell.
"That's why they call it getting your bell rung when players took a big hit to the head," said Milano, whose squad is among area teams using some of the newest headgear.
Although the players can inflate the bladders, Downingtown West athletic trainer Joe Iezzi said most players ask their athletic trainers to do it.
Newer, technologically advanced helmets, such as the Riddell Revolution or the Xenith, which is described as self-fitting by its manufacturer, come with significantly higher costs, however. That leads to more strain on high school athletic department budgets.
Helmets can cost between $175 and $400 each, depending on the model and features. In fact, some models cost as much a $1,000 apiece. While the helmets may look the same, the difference is inside. For instance, the most expensive models can record the severity of the blows the helmet absorbs.