New tool helps young athletes reduce the risks of concussions on the playing field. Benita Zahn reports.
With football season underway, it's crowded in the stadium and in the doctor's office. Many of us have witnessed a player shaken up and carried off the field after a big hit.
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Hollie Byer knows what it's like to play with pain. She's suffered four concussions!
By now most people know that concussions can be dangerous. A new study suggests that children who suffer concussions may be more susceptible to long-term effects from their injury.
Researchers studied 30 children between the ages of 10 and 17 years old. Bran scans and cognitive tests were performed. Half of the children had recently suffered concussions in which they'd lost consciousness and shown an altered mental state.
Children who had suffered concussions showed small deficits in their cognition and changes in their brains' white matter, compared with those who hadn't suffered brain injuries. White matter consists of nerve fibers surrounded by the insulating fat called myelin. These results were found 2 weeks after their injuries.
Three months later, brain scans showed that the children who had suffered concussions still had changes in their white matter.
"These findings may have important implications about when it is truly safe for a child to resume physical activities that may produce a second concussion, potentially further injuring an already vulnerable brain," study researcher Andrew Mayer, of the University of New Mexico, said in a statement.
Studies with adults who have had concussions have shown that the brains white matter changes, but this study showed that the damage to white matter in children who had concussions was greater. Mayer said that children may be more susceptible to the effects of brain injuries.
Dr. Christopher Giza, a brain injury researcher at the University of California, Los Angeles, said future studies should investigate whether the structural changes revealed in the brain scans have clinical implications for kids. Giza was not involved in the study.
"Further work is needed to determine whether the changes in white matter present at four months represent a prolonged recovery process or permanent change in the brain," Giza said in a statement.
Previous studies have shown tha
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