"Headers" may increase risk of TBI.

NBC Nightly News (11/29, story 8, 0:35, Williams) reported, "a new study that says frequent headers show brain injuries similar to that seen in patients with concussion, also known as mild traumatic brain injury" (TBI). "Those who fared worse are the players who made head contact with the soccer ball over 1,000 times a year. ... One doctor says the worry here is degeneration of brain cells and lacerating nerve fibers in the brain."

        The Los Angeles Times (11/30, Castellanos) "Booster Shots" blog reports, "A study followed 38 amateur soccer players who had been playing the sport since childhood and found that using your head more than 1,000 to 1,500 times within a 12-month period could cause symptoms of cognitive dysfunction similar to those seen in patients who have suffered from a concussion."

        HealthDay (11/30, Leighty) reports that "researchers used" diffusion tensor MRI "to analyze changes in brain white matter of 32 adult amateur soccer players who headed balls 436 times a year on average. ... Researchers compared neurological images of study participants, whose average age was 31, and found those with the highest volume of headers had abnormalities in five areas of the brain, responsible for attention, memory, physical mobility and high-level visual functions." Researchers also noted that "proper heading technique... can reduce force on the head," but children aren't ready for it until age 10. The study was presented at the annual meeting of the Radiological Society of North America.

        MedPage Today (11/30, Fiore) reports, "Compared with the other soccer players, those in the upper quartile of heading had lower fractional anisotropy -- uniform diffusion of water across white matter -- in six regions of the brain. That included five regions in temporooccipital white matter and one in frontal white matter. The researchers noted that the relationship between heading and fractional anisotropy followed a reverse 'S' shape, indicating that white matter abnormalities rise as the frequency of heading rises." Also covering the story were BBC News (11/29, Roberts) and WebMD (11/30, Laino).