Study shows decrease in brain size among fighters


  • Share on Tumblr
  • submit to reddit
Picture
A study in brain trauma among professional fighters in Las Vegas is under progress and recently a preliminary paper was published. 

104 boxers and 135 mixed martial artists has been under the loupe for some time and the study shows that the more experienced the fighter is, the more decreased the volume of important regions of the brain and the functional connections between them are.

"Among 104 boxers and 135 mixed martial arts competitors, the number of years of pro fighting correlated significantly with reduced volume in the caudate and amygdala, and strong trends were seen toward smaller volumes in the thalamus and putamen, reported Sarah Banks, PhD, of the Cleveland Clinic's Lou Ruvo Center for Brain Health in Las Vegas.

Resting state functional MRI scans also indicated a correlation between lower connectivity between regions and the amount of fighting experience, she told attendees at the American Academy of Neurology's annual meeting.

Longitudinal data are not yet available, but Banks provided a largely qualititative overview of the cross-sectional data collected in the project so far.

The average career length at enrollment was 4 years and the mean number of
self-reported fights was 11. Banks noted that the frequency of fights varied considerably, such that career length and number of fights did not correlate exactly.

Up to about year 5 of fight experience, volumes of all regions did not vary.

With experience beyond year 5, however, volumes declined -- most sharply for
he caudate region of the brain. In that region, volumes were 10% lower in participants with 15 years of experience compared with those fighting for 5 years or less.

Volumes were lower by about 5% for the amygdala and putamen.

There was a lesser trend toward smaller volumes with experience in the thalamus and no hint of a relationship in the hippocampus.

Caudate volumes and years of fighting experience were more strongly related in participants who said they began fighting in earnest at age 15 or younger, Banks said. In that subgroup, caudate volumes were smaller by 0.37% for each bout reported by participants. In contrast, the reduction was only 0.10% per bout for participants who said they began fighting after age 15."

view original article >>

Related News

  • 22 days ago
  • 24 views

UFC women’s bantamweight Jessica Eye doesn’t buy in to champ Ronda Rousey’s explanation for why she beat Sara McMann.Filed under: News, UFC more

  • 23 days ago
  • 12 views

When a fighter loses a title fight, he usually has to go back to the drawing board, see what went wrong and figure out how to come back stronger. Some are able to do that very well and get back in title contention quickly. Others, like Frank Mir, don't do so well after a title loss. With more divisions and fighters now than ever before, there are far more title fights and far more title contenders. Some contenders are ready for a second or maybe even a third shot at the belt. Let's see who they more

  • 22 days ago
  • 35 views

Today's mixed martial arts takes a certain kind of individual to stand out and succeed. No longer does one elite discipline supersede the rest. No longer does one attribute dictate perennial greatness. Instead, fighters need to be equipped from head to toe. This includes their ability to work the mic. While nobody in the near future is going to match the overall precision on the mic that the likes of Chael Sonnen did, that doesn't mean they can't make progress. Here are five fighters who can wal more

  • 23 days ago
  • 40 views

Because as the nutrition expert put it, fighters like Kelvin Gastelum are paying 20 percent to someone just to answer a phone call from Joe Silva, instead of paying the proper coaching staff which actually helps them prepare to win a fight. Kelvin Gastelum failed to make weight in his third trip to welterweight this past weekend (Sat., June 28, 2014) prior to his fight against Nicholas Musoke at UFC Fight Night 44 in San Antonio, Texas. A blunder that cost The Ultimate Fighter (TUF) season 17 wi more

  • 24 days ago
  • 43 views

Leading up to his UFC Fight Night 44 bout with Niko Musoke, TUF 17 winner Kelvin Gastelum called nutritionist Mike Dolce's program "expensive." But Gastelum missed weight by nearly two pounds, which caused the welterweight to forfeit 20 percent of his purse and may have cost him a $50,000 Performance of the Night bonus after his decision win. "Dana White was going to give him a $50,000 bonus for performance of the night," Dolce said on Monday's edition of The MMA Hour. "But because he missed wei more

  • 26 days ago
  • 57 views

Your favorite fighters are cheering on their countries in the 2014 FIFA World Cup and posting pics of it all, and Katie Winter has collected them here just for you. Welcome to the special 2014 FIFA World Cup Week Two edition of MMA on Instagram. Fighters share a lot of pics and love to show their allegiance to their respective countries so you know they've been busy with all the soccer/football/futbol happening lately. Here is what they've been up to. Braulio Estima was cheering on Brazil: "Game more

  • 27 days ago
  • 50 views

From its earliest days, determining the best MMA fighter in the world has never been a particularly easy task. Even as Royce Gracie dominated the initial UFC tournaments in 1993 and 1994, challengers to his throne emerged overseas, his own brother Rickson at the front of the pack. As the years have gone by and the sport has become more diverse—in size, technique and geography—winnowing a pool of hundreds down to one has become more and more difficult. How do you compare lightning-quick submissio more

  • 27 days ago
  • 47 views

For many MMA fighters, fighting is all they know. There is no life after hanging up the gloves for some guys. The guys on this list don't fall into that group of fighters. That's because whether it's stepping into an announcer's booth, sitting down behind a news desk or running classes in a gym, the fighters on this list will have successful post-fight careers. If anyone has been around enough fighters, you'll know that some are made to be coaches or have the gift of gab and some simply don't. T more

  • 29 days ago
  • 13 views

There are times when a fighter’s record doesn’t paint a complete picture. Though it lists their recent appearances and the outcome of those bouts, there is context and information that exists beyond... more