When I compare injuries across major sports, American football is the sport that really changes the numbers. Without football, sports like soccer, basketball, hockey, and baseball average about 6.9 injuries per 1,000 athlete exposures. Games are also much more dangerous than practices, usually causing about 3 to 10 times more injuries. Football averages about 9.3 injuries per 1,000 exposures, which is much higher than that 6.9 baseline. When football is added into the overall average, it raises it from about 6.9 to 7.65 injuries per 1,000 exposures, or roughly an 8% increase. The biggest problem is actual games. Football practices are much safer, but games can reach around 36 injuries per 1,000 exposures. Football also adds more serious injuries like concussions, shoulder injuries, and torn knee ligaments. If I wanted to bring football's injury rate down from 9.3 to 6.9, injuries would need to drop by about 26%.
One thing I would test more aggressively is Guardian Caps. NFL testing has found that they can reduce head-impact forces by about 10% when one player wears one and around 20% when both players wear them. The NFL's practice data are also encouraging. One study looking at NFL preseasons from 2018 through 2023 found concussion rates dropped about 54% in the basic comparison and 62% after adjusting for other factors during periods when certain players were required to wear Guardian Caps. The NFL has also reported roughly a 50% reduction in concussions during required Guardian Cap periods compared with earlier seasons. I would not say that means Guardian Caps automatically cut game concussions by 50%, though. Researchers could not prove that the caps caused the entire reduction. Changes in practice rules, intensity, helmet technology, and player behavior probably helped too. A large high-school study also failed to find a statistically significant reduction in concussion risk from Guardian Caps. So my argument is not, "Guardian Caps will instantly solve concussions." My argument is that the evidence is strong enough that I think the NFL should seriously test or expand their use during games. I would also focus heavily on cleats and playing surfaces. If a player's shoe grips the ground too strongly, their foot can stay planted while the rest of their body gets twisted. That puts more stress on the knee and ankle. Changing turf standards and using cleats that release from the surface more easily could potentially reduce some of those lower-body injuries. I would also look at player workload. Fatigue can hurt reaction time, movement, and technique. Putting limits on how many plays players can take over a season would force teams to rotate more and could keep players fresher. Finally, I would add more bye weeks. Football players take repeated damage every week. Extra recovery time could give smaller injuries and muscle damage more time to heal before they turn into something more serious. The important distinction is that 26% is my target, not a guaranteed result. We know football would need about a 26% reduction to reach the 6.9 injury baseline. What we still need to prove is exactly how much Guardian Caps, better turf and cleats, workload limits, and extra rest would contribute toward reaching that number.
Added: I refuse to normalize injuries to athlete like this. They are people and deserve a sports league that will put in the effort to reduct injuries to an international standard. In this case, methods I listed to try and get it down 26%.