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Published on Leave a comment on Subtle Brain Changes From Heading Soccer Balls
Soccer ball Credit: Wikipedia

Many studies have discussed the short-term and long-term harm to the brain from both concussions and sub-concussions in athletes playing tackle football. But relatively little has been said about the possibility of similar harm from soccer. A recent study found that heading a soccer ball results in subtle brain changes, even when there isn't a concussion.

The well-done study of 15 adult male soccer players looked whether there are brain changes after a routine "heading" task (heading the ball 20 times in 20 minutes) and after a routine "kicking" task (the tasks were routine soccer exercises). Blood samples and MRIs of the brain were taken after each task, as well as cognitive function assessments.

There were subtle brain changes seen in the MRIs, as well as inflammatory markers present in the blood after the soccer heading task, but not after the kicking task. As the researchers concluded: "non-concussive impacts, specifically those administered in the form of a controlled SHT, can alter select markers of brain function, chemistry and microstructure in male soccer players." Additionally, "heading decreased tissue conductivity in 11 areas of white matter of the brain".

The big question is what does heading of soccer balls, many times over a lifetime, do to the brain? Increased rates of dementia?

Bottom line: Heading soccer balls, even when done as part of soccer practice, causes subtle changes in certain areas of the brain. Be cautious!

From Medical Xpress: Heading soccer balls can cause changes in the brain even without concussion or symptoms

Heading a soccer ball alters the brain, new research spearheaded by the University of Sydney has found, despite having no immediate impact on cognition. ...continue reading "Subtle Brain Changes From Heading Soccer Balls"

Published on Leave a comment on Time To End Heading Of Balls In Soccer?

Image result for soccer ball Many studies have discussed the short-term and long-term harm to the brain from playing tackle football, especially when starting the game at an early age (before the age of 12) , and from getting concussions and sub-concussions. But relatively little has been said about the possibility of similar harm from soccer (see post).

Finally a study looking at the practice of heading the ball in soccer - where yes, the person is directly hitting the soccer ball with his or her head, whether during a game or routine heading practice. Any harm from that? Yes. There were measurable brain function changes in both male and female young adults after heading a soccer ball 20 times during one practice session. While the changes ("short and long term memory function and corticomotor inhibition") were temporary, the researchers were concerned over possible long term brain effects (perhaps similar to those found in football players) when there are many practice sessions and soccer games, over many years. From Science Daily:

Heading a soccer ball causes instant changes to the brain

Researchers from the University of Stirling have explored the true impact of heading a soccer ball, identifying small but significant changes in brain function immediately after routine heading practice. The study from Scotland's University for Sporting Excellence published in EBioMedicine is the first to detect direct changes in the brain after players are exposed to everyday head impacts, as opposed to clinical brain injuries like concussion.

A group of soccer ball players headed a ball 20 times, fired from a machine designed to simulate the pace and power of a corner kick. Before and after the heading sessions, scientists tested players' brain function and memory. Increased inhibition in the brain was detected after just a single session of heading. Memory test performance was also reduced by between 41 and 67 per cent, with effects normalising within 24 hours. Whether the changes to the brain remain temporary after repeated exposure to a soccer ball and the long-term consequences of heading on brain health, are yet to be investigated.

Played by more than 250 million people worldwide, the 'beautiful game' often involves intentional and repeated bursts of heading a ball. In recent years the possible link between brain injury in sport and increased risk of dementia has focused attention on whether soccer ball heading might lead to long term consequences for brain health.

Cognitive neuroscientist Dr Magdalena Ietswaart from Psychology at the University of Stirling, said: "In light of growing concern about the effects of contact sport on brain health, we wanted to see if our brain reacts instantly to heading a soccer ball. Using a drill most amateur and professional teams would be familiar with, we found there was in fact increased inhibition in the brain immediately after heading and that performance on memory tests was reduced significantly.

"Although the changes were temporary, we believe they are significant to brain health, particularly if they happen over and over again as they do in soccer ball heading. With large numbers of people around the world participating in this sport, it is important that they are aware of what is happening inside the brain and the lasting effect this may have." In the study, scientists measured levels of brain function using a basic neuroscience technique called Transcranial Magnetic Stimulation (TMS).  (Original study)