LEWISVILLE, N.C. — Football is a collision sport where some of the most devastating injuries often go unseen.
So, to keep players safer, shockbox helmet sensors are being used at Forsyth Country Day School to measure the impact of a hard hit.
The shockboxes are placed in each player's helmet. Each device sends blue tooth signals to trainers' cell phones.
If an impact measures too high, players have to get checked out before getting back in the game.
The team is just one of four throughout the country to get shockboxes as part of a campaign through Progressive Insurance.
The team has only received 11 shockboxes. Players who have had concussions in the past or who play high-impact positions will have the devices placed in their helmets.