VSR-4 of Riddell Helmet received a star in a study of helmets of football led by Virginia Tech, biomedical engineering professor Stefan Duma and released Tuesday. Another model of Riddell - the speed of revolution - was the only helmet which earned five stars, the top rating.
Five models - two made by Riddell, two by Schutt and one by Xenith - received four stars.
According to Riddell, 38% of NFL players wore the VSR-4 rated low in 2010. The company also said 39% were one of the different models that fall under the name of Riddell revolution or the new 360 Riddell.
"It is our hope that based on this and other independent research, that the players and teams at all levels will continue to migrate to the family of the revolution of helmets," Sports Riddell President Dan Arment said in a statement e-mailed to Associated Press by an outside PR firm representing the manufacturer.
Each NFL player is allowed to choose what brand and model of helmet he wears.
In November, the NFL told the AP estimated that 75% of used helmets in 2010 were made by Riddell, who had an agreement to license/sponsorship with the League since 1990. The League said 23 percent were made by Schutt, 1 to 2% by Xenith and handshake by Adams USA.
A helmet made by Adams was the only one who has received a rating of "not recommended" by the study of the State Duma.
In a telephone interview, Duma stated that this is the first time the results of comparative tests on football helmets were made public.
He said that the star ratings provide "a prediction of the risk of the commotion."
"All these helmets protect you fracture of the skull, so what we are doing is going to the next step and looking at how they protect you from brain damage," said Duma.
"We are going to base this analysis off impacts a million, we collected," added Duma, which calls for the study the culmination of about eight years of research. "We know how the players are hit." ... "It is much more complex than anyone who has ever watched, in terms of evaluating the performance of helmets."
Concussions occur when the brain within the skull of an impact or whiplash effect, but it is even an injury that doctors - not to mention players and managers of various sports - talk about learning. There is a general consensus that concussions can be eliminated from the football. But as the links more were given the day between the disease later in life and the injuries to the head, the NFL has intensified its efforts to educate players on concussions and protect them from injury.
NFL spokesman Greg Aiello said that the Committee head neck and spine medical the League would review the research of Virginia Tech. He also noted that the League and the Association of let players from NFL players, trainers and equipment managers know last year that three helmet models - two by Riddell and the other by Schutt - met all three criteria for qualification as a powerful helmet when 16 were tested.
The League and COORS also said players and teams then: "in General, conducted some of the best modern helmets in these tests than older helmets."
Riddell stopped selling the VSR-4 in 2010. Models of revolution provides major changes of the VSR-4, as covering the territory of the jaw and having padding, like the addition of padding to increase the space between the head and shell.
Ratings for Virginia Tech "show that there is a difference between models and brands of helmet and strong research and development can have a significant impact on the protective performance of football helmets," arm said in a statement by e-mail.
Duma wants to perform similar tests on baseball and bicycle helmets.
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