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http://news.sky.com/skynews/Home/Wo...To_Serious_Brain_Damage,_Whiplash_And_Strokes
Rock fans have been warned to wear a neck brace while headbanging - or better still, cut it out altogether.
They should swap their heavy rock for easy listening music such as Michael Bolton, Celine Dion and Enya, a report says.
Researchers Declan Patton and Andrew McIntosh from the University of New South Wales in Australia attended hard rock and heavy metal concerts to create a "theoretical headbanging model".
Their study found a rock or metal rhythm of at least 146 beats per minute combined with a head-swing arc of 45 degrees will cause "mild head and neck injury".
Worse still, with faster tempos and wider arcs, they observed a "definite risk of mild traumatic brain injury".
And for those who regularly indulge in a bout of headbanging, they carry a strong warning.
It's popular with rock stars
"In 2005, doctors believed that Terry Balsamo, the guitarist from the band Evanescence, experienced a stroke from headbanging," their report says.
The paper applies the theoretical headbanging model to a scene from the cartoon Beavis and Butthead.
In the scene, the characters headbanged to The Ramones' I Wanna Be Sedated at 164 beats per minute.
The range of motion of Beavis' head was about 45 degrees, below the serious injury threshold.
But for Butthead, the prospect was not so great.
He headbanged with a range of motion of about 75 degrees, risking a "level one" head injury, headaches and dizziness.
:: The study is published in the British Medical Journal.
http://news.sky.com/skynews/Home/Wo...To_Serious_Brain_Damage,_Whiplash_And_Strokes