The answer to that question is likely a mixed bag.
Research from the US National Institute of Neurological Disorders and Stroke has shown that while some people who exercise are more protective, others are more susceptible to brain injury.
This is because muscles that produce the electrical signals that trigger the muscles to contract, which is what triggers the brain to do work, are also the ones that are most vulnerable to damage.
But the research doesn’t say much about whether the same protective properties of the muscles that control movement in the brain apply to people’s muscles.
This could be important in future research, because it could be that people with a greater susceptibility to injury are also more likely to be in sport, and this might make them less vulnerable to injury, says Professor Michael Saffo from the University of Sydney.
Professor Saffon is a neuromuscular physiologist at the Institute for Cognitive Neuroscience at the University’s Sydney Centre, who led the study, and has previously done research on how the brain works.
In the study published in the Journal of the Royal Society Interface, he and his colleagues recruited more than 200 people to have a brain scan using an MRI machine that was then switched off.
They looked at how the participants reacted to a series of images that showed them standing in a position that could be interpreted as ‘safe’ or ‘dangerous’, but also showed them varying degrees of brain activity.
For example, if the brain was still active, people’s activity would be lower than if the MRI machine was shut off.
But when the MRI machines were switched off, people had less activity, indicating that the brain had been injured.
The researchers then looked at whether the changes in activity caused by the MRI scans corresponded to changes in brain function, and whether they correlated with changes in the people’s brains.
They found that the changes that corresponded with changes to brain activity were significantly lower in people with lower brain activity and that they correlated less strongly with changes from the MRI.
“The brain is highly sensitive to injury,” says Professor Safo.
“But if the injury was caused by an injury in the muscles, the same mechanism that controls the muscles might be the one that regulates the brain.”
That suggests that when people are injured in the body, it may be the muscles responsible for the injury that are injured, rather than the brain.
This was also found in the study of a group of participants who were injured in a motorcycle accident, and then had their brains scanned in a way that could reveal how they had suffered brain damage.
The results of that study showed that the people who had sustained brain injuries from motorcycle crashes had a significantly lower activity in the right side of the brain, but not the left.
The findings of the latest study are not all that surprising, says Prof Saffos.
“This is a small study, but the finding that the activity in those areas is correlated with brain function suggests that this might be part of the mechanism by which the brain recovers from brain injuries,” he says.
And the researchers say that the results of this research suggest that the idea that the body is more susceptible than the muscles is a bit of an over-simplification.
“It’s not true that the muscles are more vulnerable,” says Saff.
A similar study by Professor Siffo found that while people who suffered from trauma in the workplace were more susceptible, people who were involved in sport had a higher brain activity when compared to those who weren’t. “
What this study shows is that if you’re injured in one of these areas of the body where there are some potential risks of damage, it’s important to have the right protective equipment and to be very cautious.”
A similar study by Professor Siffo found that while people who suffered from trauma in the workplace were more susceptible, people who were involved in sport had a higher brain activity when compared to those who weren’t.
And it was the people in sport who had been most susceptible to injury that showed the greatest reductions in brain activity, suggesting that they were less likely to suffer brain injury in sport.
If you have a concussion, this is the time when you need the most protection – Dr Michael Safos, neurosurgeon at the Australian National University.
A common thread between these studies, says Dr Michael Wills, who studies brain injury at the Murdoch Childrens Hospital in Melbourne, is that people who suffer brain injuries often have the same brain injury but are not aware of it.
“They may think they’re protected from it, but it’s not,” he explains.
“So it’s very important that people understand that when they go out and do something that they know is risky, that there are consequences for the brain as well as the muscles.”
The researchers also looked at brain activity in young people who experienced a traumatic brain injury and found that those who had suffered from the injury in sports had lower brain levels of the enzyme tyrosine hydroxylase.
This enzyme breaks down proteins