The union representing British soccer players is set to announce the first comprehensive protocol for preventing the brain disease CTE.
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The move will expand the heightened concern over concussions to include damage that can be caused by the less forceful blows from heading the ball.
Guidelines from the Professional Footballers Association, which represents current and former players in the Premier League, the FA Women's Super League and the English Football Leagues, recommend no more than 10 headers per week - including practice - for professionals.
Children under 12 shouldn't head the ball at all, the PFA said, part of a chronic traumatic encephalopathy (CTE) prevention protocol designed to reduce head impacts across a player's lifetime.
"CTE is preventable. Period," Dr Adam White, director of brain health at the PFA, said on Monday (Tuesday AEDT) at the first Global CTE Summit in San Francisco.
"It is the principles of less heading, less force, less often and later in life that matter.
"These could apply to any sport and are the best hope we have of stopping current and future players from the same fate as former generations."
The degenerative brain disease was studied in boxers more than a century ago as punch drunk syndrome and first diagnosed in American football players in 2005. It has since become a concern in ice hockey, soccer and other contact sports and among combat veterans and others who sustain repeated blows to the head.
A 2017 study found CTE in 110 of 111 brains donated by former NFL players. The disease can only be identified posthumously through an examination of the brain.
The NFL, college football and many other sports have instituted protocols that guide teams and athletes on returning to play after sustaining a possible concussion.
But the British soccer protocol is the first comprehensive plan to combat CTE by addressing the less dramatic, subconcussive blows that can be common in practice, says Chris Nowinski, founder of the Concussion and CTE Foundation.
"For contact sports, CTE prevention protocols are equally important and possibly more important than concussion protocols," he said.
Research funded by the union and the Football Association found that Scottish pros have a risk of dementia that is 3.5 times greater than the general population. Studies of brains from British soccer players found most had CTE, including Jeff Astle, Gordon McQueen and Chris Nicholl.
"With what we know today about the disease, it would be a failure to our players to do nothing," White said in a statement.
"The science and solutions are clear, it just takes willingness from the sporting bodies to put athletes' long-term health first and I am pleased that we have been able to do that in England."
The protocol also includes annual education, support for research and care for ex-players who suspect they are living with CTE.
Nowinski called on sports leagues and their medical advisers to adopt CTE prevention protocols.
"There is now overwhelming evidence that more head impacts in sports will result in more athletes with CTE," Nowinski said.
"Sports administrators aren't risking CTE themselves, but the policies they set are sentencing some athletes to a life with CTE, a burden that will primarily be carried by their spouses and children."
Australian Associated Press
