Addressing the challenge of concussion in rugby is like a skirmish with the marauding All Blacks. Hazards emerge from every angle and each advancing metre is hard fought.

Leading the line is Dr Simon Kemp, chief medical officer at English rugby’s governing body the RFU and a former physician to the England squad.

With his involvement, the game has made significant progress in improving its handling of concussion in recent years, but the battle is far from won.

“Concussion is just about the most difficult sports injury to diagnose and recognise because it can present in so many different ways,” he says.

“It can lead to two or three seconds of unconsciousness with no signs or symptoms afterwards – or can present with somebody who develops a headache over the course of four to 24 hours, for example.”

Custodians of the game are working on several fronts to better prevent, manage and understand concussion at every level, from schools and grassroots to the top tier.

Like football, American football and boxing, rugby must also answer difficult questions about its long-term impact on the brain.

This follows revelations about links between football and NFL to CTE, the progressive degenerative brain disease caused by repetitive brain trauma and associated with dementia.

Long term study

Kemp (pictured above) says: “Sport in general needs to answer the question of whether there is an association between playing sports
 and neurocognitive decline.

“It’s a difficult question to answer because, as we age, we all see neurocognitive decline, which is one of the reasons for the limited amount of evidence around to date. We acknowledge that there may be an association [between rugby and CTE] but the reality is that the available evidence is limited and conflicting.

“Unlike some other sports, we do actually have a long-term study underway, involving 205 ex-rugby players, most of whom were England internationals. Rugby has been pretty upfront about this issue.”

The RFU is working on the study with 
the London School of Hygiene & Tropical Medicine and researchers from Queen 
Mary University of London, The Institute
 of Occupational Medicine, University 
College London and Oxford University.

It is backed by £450,000 in funding from The Drake Foundation, which supports sports concussion research. Results are expected to be published next year.

Detection improving

At the last count in 2015/16, concussion accounted for 25 per cent of all match injuries in the English professional game, up from 17 per cent the year before.

But the sport is not necessarily becoming more dangerous – heights and weights of players have remained stable since 2002, after an initial surge when the game turned professional in 1996.

Rather, Kemp puts rising concussion rates down to greater recognition of the condition.

“In the professional game, reported concussions have been going up dramatically over the last five years but all other contact injuries have remained stable. We think
 the rise is because we are much better at recognising it.”

This surge in reported concussions corresponds with the establishment of World Rugby’s Head Injury Assessment 
(HIA) tool, which underpins concussion management in the elite game.

It consists of a three-step process of assessment for any player suspected of sustaining a concussion.

The first stage involves 11 immediate and permanent removal criteria relating to factors such
as consciousness, balance or behavioural changes.

“The player absolutely does not go back onto the pitch if any of these criteria
 are met,” says Kemp.

An off-field screening tool, pitch-side video review system and evaluation by an attending doctor are also involved at stage one.

Stages two and three cover tests and assessments for early signs of concussion, within three hours of the match, and delayed signs, after the player has had two night’s sleep.

The protocol was introduced in 2012 – a year in which an estimated 56 per cent of players later deemed to be concussed stayed on the field.

The latest available stats, from 2015/16, put that figure at nine per cent, with the fourth version of HIA now in play. 
As often happens at the intersection between much-loved sports and newly installed regulations, the HIA protocol has attracted some criticism.

And, despite its continual improvement via updated versions, it cannot protect against every concussive incident in every match.

Lessons to learn

Last year Northampton winger George North was allowed to return to the pitch at Leicester, despite having appeared to lose consciousness.

A review found there was enough evidence from footage of the incident, together with North’s history of concussion, to have kept him on the field.

It accepted that Northampton’s medical team acted in the best interests of the player, however, since it had not seen all the available video footage due to
 Wi-Fi problems.

Rugby’s response was swift. The Concussion Management Review Group drew up

nine recommendations, which were implemented by Premiership Rugby.

They included ensuring a pitch-side video reviewer remains in their allocated seat and has backup to make sure video feeds are monitored continually.

Various Wi-Fi protocols and a stipulation that medical rooms should have hard-wire video feeds were among other measures.

Former World Rugby medical adviser Dr Barry O’Driscoll said at the time that the episode showed: “The protocols are totally unfit for purpose. Time and again they are putting brain damaged players back on the field.”

O’Driscoll quit his role at World Rugby in 2012 in protest at the way concussion was being handled.

In the absence of a proven and objective, single pitch-side test for concussion, Kemp insists the HIA system is performing well
in terms of protecting players.

Official data backs this up; in 2015/16, 98.5 per cent of head injury events in the Premiership were managed according to the protocol.

“HIA has evolved since 2012 and it really is pretty sophisticated now. The tools that we

have to identify concussion are of real
value, but they are, of course, subjective.”

Should an accurate, objective pitch-side 
test emerge, Kemp envisages it being embedded into HIA protocols, rather than replacing them. Such a test might be based on saliva samples, if trials taking place this season in the Premiership and Championship are successful.

Conclusive testing

The study, being carried out in collaboration with the RFU, Premiership Rugby and
 the Rugby Players’ Association, will run throughout the 2017/18 season and is the biggest of its kind in the history of UK sport.

Birmingham University, led by neurosurgeon Professor Tony Belli, has spent the last nine years working towards a test that measures biomarkers present in the saliva and urine of players.

If validated, it could be carried out on a hand-held device, which is currently under development.

Professor Belli says: “If these biomarkers are found to be reliable, we can continue our work with industrial partners with the hope of having a device available within the next two years that will instantaneously diagnose concussion on the pitch-side with the same accuracy as in the laboratory – a major step forward for both sport and medicine.”

While rugby works towards a fast, watertight pitch-side concussion test, what other interventions might minimise the risk 
of brain injuries in the game? NFL or amateur boxing-style head guards are often suggested, perhaps by those uninitiated with the medical implications of contact sports.

These, says Kemp, would be pointless in relation to head injuries.

“Rugby headgear can protect against head lacerations and cauliflower ears but there aren’t any helmets in sport that have been shown to protect against concussion.

“They can prevent skull fracture, but not the rotational, acceleration and deceleration injuries that are associated with concussion.”

One safety measure which has been adopted by the professional game recently is an increase in the sanctions players receive for tackles made over shoulder level.

In January 2017, the minimum on-field sanction for a reckless (high) tackle was upgraded to a yellow card with a maximum of red, while the minimum on-field sanction for an accidental (high) tackle is now a penalty.

“We are already starting to see more penalties and yellow cards as a result, so referees are definitely implementing it.”

Time will tell whether this heightened threat of an early bath or time in the sin-bin leads to a reduction in concussion rates.

Essential education

A longer-established part of rugby’s concussion prevention strategy is the

training course delivered to all players and backroom staff at every club in English rugby’s top two divisions.

The club doctor at each of the 24 clubs 
runs an hour-long concussion session, with mandatory attendance for every member
 of the playing, coaching and support staff.

Around 1,300 people have now been through the course since its launch in 2014.

“It has transformed the way players understand concussion. They are really well informed about what it looks like, what it feels like and why they need to come off.

“The course also talks them through what the potential consequences are.

“In the short term, if they stay on the field, they have an increased risk of further 
injury, their performance goes down and their symptoms are likely to last longer.
 We also talk about the potential long-term consequences.

“We don’t know exactly 
what they might be, which is why it is so important to get across to players why they need to be removed in order to recover and return safely.”

At amateur and age group levels of rugby, concussion education is not mandatory, but plays a crucial role in protecting players.

The RFU runs online courses and offers a wealth of resources to school and community teams through its Headcase initiative.

They include advice, assessment tools and changing room posters with the slogan “DON’T BE A HEADCASE, STOP! CHECK FOR CONCUSSION”.

Tens of thousands of people have undergone training via the scheme since it was launched in January 2013.

The grassroots campaign advises anyone involved in the game to; ‘Recognise, Remove, Recover, Return’ and Kemp says the message is hitting home.

“Evidence suggests that the simpler
 your message, the more likely it is to be remembered. We’ve been working hard around the Headcase resource to achieve this, including through the commissioning 
of a video animation which has gone down particularly well with teenage players.

“The message is getting through but it needs to reach millions of people and it hasn’t got to everybody yet. We also need to consider what is rugby’s responsibility and what is that of the departments of education and health.

“Our principle responsibility is to get the message to coaches, players and parents.

We can help in terms of getting the message out to GPs, emergency doctors and teachers but we do need support from government departments, which, in fact, we have very good relationships with.

“Also, concussion advice to teachers needs to be consistent across sport, which is why we’re working with other sports and our advice is aligned with soccer’s for example.”

Schools must adapt

An important element of the RFU’s work with schools is providing guidance on what happens after a concussion.

“If a pupil sustained a concussion on a Saturday and still had a headache on the Monday, they shouldn’t be back into a full school programme.

“We have been working with schools to help them understand that they may need to make some academic adjustments as the pupil recovers from the injury.

“This is a big task but schools are increasingly receptive. Some independent schools with big rugby programmes have even developed an approach to player recovery that looks very similar to that of professional clubs.”

In concussion prevention and management, the amateur and schools-levels of rugby take their lead from the professionals.

“Concussion is the same injury in professional, community and age group rugby. But the way it is managed varies because of the different resources you have. The principals are the same however and are consistent with the science [of concussion].

“How concussion is managed at the professional end drives how it is managed at the community end.

“So it is incredibly important in the professional game that we recognise and remove players with suspected concussion and do not leave them on the pitch. By doing so, we send a message to the community and age group levels.”

Further protection for young people comes via a lower threshold for leaving the pitch, and a slower return to play.

“Schools rugby doesn’t have video evidence, but does have the coaches, parents, teachers and other players all alert to the possibility of concussion and players coming off.”

Young players also experience a gradual increase in the level of contact permitted in their game as they get older. Full contact rugby is not played until players turn 15, a strategy which also protects players from head injuries, says Kemp.

Exercise may protect young people

New measures could further protect young players, meanwhile. Recent research 
from the University of Bath found that a 20-minute exercise programme for young rugby players to improve their strength and balance could help to reduce concussion injuries.

A study, involving 14 to 18-year-olds across 40 schools, found 59 per cent fewer concussions in schools that completed the exercises three times a week, compared to those that didn’t.

The exercises focused on increasing neck muscle strength, balance and movement. The RFU is rolling out the programme in schools in England
 this season.

Other researchers suggest the game should go even further to prevent concussion in school rugby.

A Newcastle University study, published in July in the British Journal of Sports Medicine, re-examined existing evidence on the rates and risks of injuries in sport.

It cited “strong evidence” from Canada that removing the “body check” from youth ice-hockey, where a player deliberately makes contact with an opposing player to separate them from the ice-puck, led to a 67 per cent reduction in concussion risk.

The report drew parallels with rugby and urged a ban on tackling in the youth game; although another recent study in the same journal suggested concussion risk in youth rugby is no higher than in other sports.

Kemp urges balance when considering the risks and rewards of young people playing rugby.

“You have to look at both the sport’s benefits and negative elements. The reality is, at a time when our children are becoming increasingly sedentary and heavy, the place for physical activity in sport is increasingly valued.

“One of the important points about rugby is that it’s a game for all shapes and sizes. The shorter or less mobile child who might not get a look in in soccer, may have a place on the rugby team.”

Yet, despite rugby’s obvious health benefits, is there a danger that officious head teachers might still be tempted to avoid any rugby-related risks completely?

In the US, where American football is
still reeling from revelations about links to early-onset dementia, non-contact, ‘flag football’ is reportedly replacing the pigskin in some schools.

Non-contact forms of rugby are already in existence here, but Kemp sees no signs of 
a drop in appetite for proper rugby among young people.

“Clearly as we become more aware of injury risks, it might change how schools review individual sports, but at the moment the uptake of rugby in schools is significantly growing,” he says.