football facts

[Homicidalheathen]

http://www.popularmechanics.com/outdoors/sports/4212171.html

HALF A TON OF HURT

At 5 ft. 11 in. and 199 pounds, Marcus Trufant is an average-size NFL defensive back (DB). Those stats don't stand out in a league where more than 500 players weighed 300-plus pounds at the 2006 training camps. But a DB's mass combined with his speed — on average, 4.56 seconds for the 40-yard dash — can produce up to 1600 pounds of tackling force, according to Timothy Gay, a physics professor at the University of Nebraska and author of The Physics of Football.

More than 100 concussions are recorded each season in the NFL. Given the size and speed of today's athletes, it's surprising that more gridiron warriors aren't carried off the field on their shields. For that, they can thank high-tech gear that protects them from the physics at play in the sport's fearsome collisions.

[Simon Bar Sinister]

5'11" and 199 pounds is really small for a defensive back these days.

[Homicidalheathen]

Those stats don't stand out in a league where more than 500 players weighed 300-plus pounds at the 2006 training camps

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