Dementia Pugilistica, otherwise know as chronic traumatic encephalopathy, has its roots in the Sport of Kings, boxing. Given that this sport and its derivatives; MMA, UFC, etc., goal is to inflict brain trauma there is surprisingly less heard about their dealings with concussions. There could be a lot of reasons why this may be; expected, inherent work condition, informed consent, less watched, or their general dealings with head trauma.
Quietly, these sports and their sanctioning bodies have instituted some of the more strict rules when recovering from a knock out, or concussion. Generally each state and province sanctioning body has a “medical suspension” induced on a fighter that is KO’ed or even shows signs of a concussion, most are 30 days. Although specific wording in each groups medical suspension varies, the base of it provides that a fighter CANNOT fight for 30 days after the incident. Less commonly known is that this also includes sparring and training; however this clause is not in most rules, it is inferred. That is unless you are the UFC.