We must be wary of the dangers posed by concussion

If we don’t wise up many players could reap a terrible harvest after retirement

Toulouse centre Florian Fritz leaves the pitch after he was injured during the Top 14 quarter-final rugby union match against  Racing Metro earlier this month. He was allowed to return to the game. Photograph: Getty Images

Toulouse centre Florian Fritz leaves the pitch after he was injured during the Top 14 quarter-final rugby union match against Racing Metro earlier this month. He was allowed to return to the game. Photograph: Getty Images

Fri, May 23, 2014, 12:00

After 17 years in top flight rugby it appears Jonny Wilkinson’s greatest fear is that of getting a proper job. After coming through so many injuries he could be forgiven for this fear – ditto Brian O’Driscoll .

It’s terrible to think that greater threats potentially await many retired players, as 43 years of age is the average onset of neurodegenerative disease, Chronic Traumatic Encephalopathy (CTE).

Due to the development of all-year- round play, some 8-14 year olds in the US are now playing up to 100 baseball games per year. Hence little league has developed quotas. Kids pitching for their teams have their totals logged. When the kid hits a specific quota, regardless of position, they stop pitching.

For example, pitchers aged 14 and under must adhere to the following rest requirements: if a player pitches 66 or more pitches in a day, four calendar days of rest must be observed. The manager must remove the pitcher when said pitcher reaches the limit for his/her age group (eg League Age 1 -16 95 pitches per day).

The logic is simple: to prevent repetitive strain injuries which may impact their career in later years. Surely a brain is more valuable than an arm?

It is interesting that these methods to log repetition are not employed here in Ireland in the various sporting codes which experience continuous collisions in training and matches.

The non-formal medical definition of concussion is defined by the American Association of Neurological Surgeons (AANS) as “an injury to the brain that results in temporary loss of normal brain function”. Most worryingly the AANS notes that “many people assume that concussions involve a loss of consciousness, but that is not true. In most cases, a person with a concussion never loses consciousness”.

Brain trauma Hence what Florian Fritz experienced for Toulouse against Racing Metro is far in excess of the AANS understanding of concussion– but he was allowed to return to the pitch.

That is France. But what do we actually know of concussion? Game Changers is an extraordinary 5min and 20sec into the world that is trying to understand the long-term consequences of repetitive brain trauma in sports.

Christopher Nowinski is an 18½ stone former pro-wrestler who suffered with depression, short-term memory loss, sleep walking and headaches for many years before taking action. Game Changers shows the many reasons why.

Nowinski is a co-director of the Center for the study of Chronic Traumatic Encephalopathy. Although CTE has very similar symptoms to dementia, those with CTE all have a background of repetitive concussion.

The first case of CTE studied in Boston University was in 2008 on John Grimsley (1962-2008), a former linebacker for the Houston Oilers and Miami Dolphins, who died at the age of 45 from an accidental gunshot wound .

Nowinski highlights three scanned brains and compares the brain tissue for tau protein dead cells, which appears as a dark brown colour. The first is a 65-year-old with an unknown trauma history has no Tau protein. The second is a 73-year-old world champion boxer with severe dementia showing very severe tau protein deposition. Lastly, Grimsley’s 45-year-old brain shows similar Tau protein dead brain cells – he experienced at least 11 known concussions.

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