Quote shinymcshine="shinymcshine"Re - (Old school) NFL helmets
Whilst the helmet protects the outer skull itself, most concussive impacts are (I understand) caused by the brain hitting the inside of the skull as a result of shock/impact.
Obviously with these sorts of studies, the games have evolved since the times that the subjects have played/study periods passed, and medical/welfare advances have already been made to address player head injuries.'"
Even a modern gridiron helmet have a very hard time in preventing concussions from a head strike hence in part why they banned the head to head for undefended players and obviously mostly based on the evidence uncovered (despite the NFLs best attempts to hide what they already knew). As previously mentioned all helmets do is make the wearers feel more invincible and so take more risk, this is known as risk homeostasis or more commonly risk compensation.
The negative side of wearing helmets has been seen in cycling on a massive scale, not just in ordinary folk but also in racing/sporting circles (double the number of deaths post helmet compulsion in the pro ranks alone), you're more at risk of having a head injury (& any injury of any part of the body) as a helmet wearer than a non wearer.
Helmet advocates will insist that's untrue, they will link to debunked/flawed studies and meta analysis but all the respected peer reviewed studies and data prove categorically that wearing helmets only make matters worse not just individually but at mass/population levels too.
That bicyclists sans helmet have fewer head injuries than people on foot per hour of exposure and that the biggest head injury numbers come from motorists gives an indication as to how the thinking is skewed with respect to helmet wearing.
So, rugby league, yup, players will get concussions, how can you reduce that, greater education both at a younger level (wearing headguards for kids is a BIG mistake IMHO) and enforcing the rules more strictly re reckless tackles/contact, HOWEVER, unless you fundamentally change how the sport is you are always going to have clashes and accidental, non reckless strikes to the head. You can't cut out the reckless or sometimes the deliberate head contact either but penalising outcomes instead of intent doesn't help with respect to how players think about what they are doing.
Re headguards, it's being proven time and again that children are particularly vulnerable to risk compensation, just like putting cycle helmets on them which makes matters worse because they end up taking far more risk, putting headgear on kids playing RL is just a big, big mistake and fails to understand the limitations of the protection re TBIs and how it does increase incident rates because they are throwing themselves into situations more recklessly because they think they are more protected and end up with more head injuries as a consequence, exactly replicating what happened in gridiron and cycling.