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Page 1 of 2  Mixed Martial Arts ( MMA) competitions were introduced in the United States with the first Ultimate Fighting Championship (UFC) in 1993. In 2001, Nevada and New Jersey sanctioned MMA events after requiring a series of rule changes. ABSTRACT
Mixed Martial Arts (MMA) competitions were introduced in the United States with the first Ultimate Fighting Championship (UFC) in 1993. In 2001, Nevada and New Jersey sanctioned MMA events after requiring a series of rule changes. The purpose of this study was to determine the incidence of injury in professional MMA fighters. Data from all professional MMA events that took place between September 2001 and December 2004 in the state of Nevada were obtained from the Nevada Athletic Commission. Medical and outcome data from events were analyzed based on a pair-matched case-control design. Both conditional and unconditional logistic regression models were used to assess risk factors for injury. A total of 171 MMA matches involving 220 different fighters occurred during the study period. There were a total of 96 injuries to 78 fighters. Of the 171 matches fought, 69 (40.3%) ended with at least one injured fighter. The overall injury rate was 28.6 injuries per 100 fight participations or 12.5 injuries per 100 competitor rounds. Facial laceration was the most common injury accounting for 47.9% of all injuries, followed by hand injury (13.5%), nose injury (10.4%), and eye injury (8.3%). With adjustment for weight and match outcome, older age was associated with significantly increased risk of injury. The most common conclusion to a MMA fight was a technical knockout (TKO) followed by a tap out. The injury rate in MMA competitions is compatible with other combat sports involving striking. The lower knockout rates in MMA compared to boxing may help prevent brain injury in MMA events.
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MMA Injuries |
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INTRODUCTION
Mixed Martial Arts (MMA) competitions were introduced in the United States with the first Ultimate Fighting Championship (UFC) in 1993 (Krauss and Aita, 2002). Styled after the popular Vale Tudo (Portugese for "anything goes") matches in Brazil (Peligro, 2003), these first UFC matches were marketed as brutal, no-holds-barred tournaments with no time limits, no weight classes, and few rules (Hamilton, 1995).
Politicians such as Senator John McCain of Arizona led the charge to ban these competitions from cable television, describing the events as "human cock fighting" (Krauss, 2004). When their cable contracts were terminated in 1997, MMA events survived underground through internet and word of mouth promotions until their organizers agreed to a change of rules that allowed the Nevada State Athletic Commission and the New Jersey State Athletic Control Board to sanction the competitions in 2001 (Krauss, 2004).
This study is the first report of the incidence of injury in MMA competitions. No study has previously documented injuries in MMA events either before or after the tightening of regulations. Fight results and injury incidence from professional MMA bouts since their sanctioning in 2001 in Nevada are compared to boxing data from the same state. A discussion of MMA events and combat sports injuries is also included.
METHODS
Mixed Martial Art (MMA) data from all professional MMA matches in the state of Nevada from September 2001 until December 2004 (n = 171 matches) was obtained from the Nevada State Athletic Commission. All professional MMA matches occurring in the state during the study period were included. Data obtained included gender, date of the match, date of birth, weight, rounds scheduled, rounds fought, whether the fighter won or lost, how the match ended (knockout, technical knockout, decision, draw, disqualification, no decision, tap out, or choke) and the injuries that occurred in the match and the type of injuries sustained. Up to four injuries per fighter were recorded per competition. These data are in the public domain and accessible on the website of the Nevada State Athletic Commission (http://boxing.nv.gov, last accessed January 2005).
Medical and outcome data for all professional MMA matches were analyzed based on a pair-matched case-control design. Cases were fighters who sustained an injury during the matches. Fighters who were not injured served as controls. Matches in which both competitors were injured or both were uninjured were excluded from the conditional logistic regression. Both conditional and unconditional logistic regression models were used to assess risk factors for injury.
Injuries were recorded based on the clinical report of the physician at ringside. No follow-up study was done to confirm the accuracy of the reported injury based on radiography or other diagnostic testing. Injuries were divided into seventeen broad classifications: eye injuries, facial lacerations, ear injuries, nose injuries, mouth injuries, jaw injuries, hand injuries, shoulder injuries, elbow injuries, ankle injuries, f¦iuml;ot injuries, chest injuries, abdominal injuries, knee injuries, back injuries, neck injuries, and arm injuries. Lacerations to the eyelid and nose were counted as facial lacerations. Only those injuries documented other than lacerations-such as possible orbit fractures or a nose deformity- were listed as eye or nose injuries respectively.
The Johns Hopkins University School of Medicine's Institutional Review Board approved the study protocol via exemption.
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