Serious injuries to the head and neck are not a new topic for any contact sport. Boxing, in its present form, has been around for well over a hundred years and it is still going strong despite periodic attempts to ban, or limit the sport. Yet that doesn't diminish the long-term health effect to fighters, both pro and amateur. Similarly, the NFL is considering changes to the contact rules for practices and games due to the numerous high-profile cases of post-concussion syndrome among current and former players. Nonetheless, I think that promoters and participants in competitive MMA need to seriously consider the long-term health effects of repeated blows to the head from punches and kicks. In particular, the type of blow that I fear is most damaging is when a fighter strikes at a downward angle repeatedly to the head of a prone opponent. This creates a double impact scenario in which the brain is jarred in one direction, then immediately in the opposite direction as the head rebounds violently off the floor. Concussions, neck trauma, tongue lacerations, broken noses, jaw injuries, and lost teeth are common occurrences.
I recently discussed some of the long-term effects of brain trauma with world renown physician Dr. Christian Guilleminault, head of the Sleep Disorders Clinic at Stanford University. Dr. Guilleminault told me that in addition to complications associated with concussion syndrome, boxers (or others who experience repeated blows to the head) can in some cases experience damage to the hypocretin producing region of the hypothalamus. This condition can lead to narcolepsy-like symptoms. Narcolepsy is a neurological condition often characterized by excessive daytime sleepiness and cataplexy. Currently, the Narcolepsy Research Project at Stanford University is the only place in the U.S. that can test for this disorder through a sample of cerebral spinal fluid. The correlation between hypocritin levels and narcolepsy is still being researched, however I feel the implication are clear: cranio-facial injuries and head trauma can have serious consequences for competitive MMA fighters.
During my competitive days, I was often frustrated by what I felt was the lack of adaptability of traditional karate to modern sport fighting. When I trained in Mainland Japan or Okinawa, I became accustomed to the typical sparring session there: no protective equipment, but no punches allowed to the head. Conversely, I found the point-style tournament sparring common in the US permitted more freedom, but left me unsatisfied as a proponent of traditional karate since many matches became a game of tag rather than contests grounded in actual fighting principles. Karate is unique in that virtually any body part (arm, leg, head, hip, etc.) can be utilized as a weapon against an assailant. In essence, catch-as-catch-can. This, however, makes karate very difficult to adapt in its pure form to the sport arena.
Law enforcement and military forces around the world often engage in very effective self-defense training in order to prepare students for actual street combat, while generally maintaining a high degree of safety. However, in much the same way as traditional karate, this type of training doesn't transfer very effectively to a sport application, or a cage.
Of late I have come to the conclusion that if one is willing to train in MMA with the intention of fighting in a cage match, then one should be free to do so. Nonetheless, the risk of long-term injury is significant and whether that outweighs the thrill of the cage is a decision that each fighter should be free to make. However, I also feel it is important for both fighters and fans to be aware that competitive MMA, a sport which is being touted as the replacement for both traditional martial arts and boxing, has the potential to lead to brain injuries, post-concussion syndrome, and a host of other health problems that we are just beginning to learning about.