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troutman · 03-04-2016, 01:22 PM

http://www.nap.edu/read/10362/chapter/3

Although soccer balls can be kicked to speeds as high as 70 miles per hour, even most professional players cannot kick a ball that fast and most soccer players would not attempt to head a ball moving that fast, Dr. Kirkendall said. He also added that youths rarely have enough force to kick a ball to speeds higher than 40 miles per hour. He calculated the impact of a soccer ball on the head of youths of various sizes, based on the likely speed of the ball, and concluded that the force of impact is well below the force that is thought to be necessary to cause a concussion in heading a soccer ball.

But he added that concussions do occur in soccer when the ball hits an unprepared player in the head. He also gave examples of concussions occurring when players accidentally knock their heads into other players while attempting to head the ball, particularly if they are attempting to flick the ball backwards.

http://espn.go.com/espnw/news-commen...ce-study-shows

Heading a modern soccer ball can carry as much force as a tackle by an American football player, according to a study by Purdue University in Indiana. The study, which focused on women's soccer, tested two high school teams and one collegiate-level squad during an entire season, monitoring the G-force impact of heading a ball through sensors and MRI scans which then tracked the changes in a player's brain.

Eric Nauman, the director of the Human Injury Research and Regenerative Technologies Laboratory at Purdue University, told The Guardian that the force of heading a goal kick came in between 50g and 100g.

"I'm willing to bet that if a Premier League keeper kicks it out and a player heads it back, they could be pushing 150g or 160gs," he added. "After all, our study on women's soccer players altered our preconceptions. And with soccer it's clear we're only scratching the surface."

http://www.drdavidgeier.com/are-socc...nches-to-head/

They reportedly used a size-5 soccer ball delivered repeatedly to a dummy head at 18 meters per second. This is thought to be the average speed of the ball when kicked by nonprofessional soccer players. The amateur boxers delivered punches to that same dummy head.

The researchers apparently found that the forces to the head are similar between the moving soccer balls and the punches.

03-04-2016, 01:22 PM	#9
troutman Unfrozen Caveman Lawyer Join Date: Oct 2002 Location: Crowsnest Pass Exp:	http://www.nap.edu/read/10362/chapter/3 Although soccer balls can be kicked to speeds as high as 70 miles per hour, even most professional players cannot kick a ball that fast and most soccer players would not attempt to head a ball moving that fast, Dr. Kirkendall said. He also added that youths rarely have enough force to kick a ball to speeds higher than 40 miles per hour. He calculated the impact of a soccer ball on the head of youths of various sizes, based on the likely speed of the ball, and concluded that the force of impact is well below the force that is thought to be necessary to cause a concussion in heading a soccer ball. But he added that concussions do occur in soccer when the ball hits an unprepared player in the head. He also gave examples of concussions occurring when players accidentally knock their heads into other players while attempting to head the ball, particularly if they are attempting to flick the ball backwards. http://espn.go.com/espnw/news-commen...ce-study-shows Heading a modern soccer ball can carry as much force as a tackle by an American football player, according to a study by Purdue University in Indiana. The study, which focused on women's soccer, tested two high school teams and one collegiate-level squad during an entire season, monitoring the G-force impact of heading a ball through sensors and MRI scans which then tracked the changes in a player's brain. Eric Nauman, the director of the Human Injury Research and Regenerative Technologies Laboratory at Purdue University, told The Guardian that the force of heading a goal kick came in between 50g and 100g. "I'm willing to bet that if a Premier League keeper kicks it out and a player heads it back, they could be pushing 150g or 160gs," he added. "After all, our study on women's soccer players altered our preconceptions. And with soccer it's clear we're only scratching the surface." http://www.drdavidgeier.com/are-socc...nches-to-head/ They reportedly used a size-5 soccer ball delivered repeatedly to a dummy head at 18 meters per second. This is thought to be the average speed of the ball when kicked by nonprofessional soccer players. The amateur boxers delivered punches to that same dummy head. The researchers apparently found that the forces to the head are similar between the moving soccer balls and the punches. Last edited by troutman; 03-04-2016 at 01:30 PM.