Elara DeschampsOn May 16, 2026, the Intuit Dome in Inglewood, California became the unlikely setting for one of the most unusual events in recent combat sports history: former UFC champion Ronda Rousey and former MMA contender Gina Carano stepped into a professional cage for the first time in years, headlining MVP MMA 1, the debut event from Jake Paul's Most Valuable Promotions. The event streamed on Netflix alongside other returning veterans including Nate Diaz and Francis Ngannou. For MMA fans, it was a spectacle. For sports medicine professionals, it raised questions that Canadian athletes and weekend martial artists should understand.
The Return of Rousey and Carano: What the Numbers Say
Ronda Rousey, 35 at the time of the fight, had not competed professionally in MMA since 2016, a gap of nearly a decade. Gina Carano, 38, had been absent from professional competition for even longer. Both fighters trained specifically for this event, but years of detraining, an absence from full-contact sparring, and the natural physiological changes of the mid-to-late thirties represent significant physical variables that professional sports medicine physicians track carefully.
Their return came at the invitation of Most Valuable Promotions, the Jake Paul boxing promotion that expanded into MMA for this event. The fight card, which also featured Francis Ngannou and drew substantial media attention, was reported on by ESPN and CBS Sports as the debut event of what promises to be a recurring series.
Why Returning Fighters Face Unique Health Risks
For athletes in combat sports — boxing, MMA, judo, or Brazilian jiu-jitsu — the risks of returning after a prolonged absence are categorically different from those in most other sports. This is not simply a matter of general fitness.
Brain health and cumulative trauma. Years of sparring and competitive fighting expose the brain to repeated sub-concussive and concussive impacts. Research increasingly links cumulative head trauma exposure to long-term neurological conditions. The World Health Organization identifies acquired brain injury as a risk factor for dementia, and professional combat athletes carry significantly higher cumulative exposure than most sports. Returning to full contact after years away does not reset this exposure — the cumulative impact remains.
Cardiovascular deconditioning. High-intensity combat sports demand a specific form of cardiovascular fitness that degrades significantly during periods of inactivity. A general fitness programme, even an intensive one, does not replicate the cardiovascular demands of a competitive fight. Returning fighters often experience disproportionate fatigue in the later rounds that they did not encounter during training.
Joint, ligament, and tendon vulnerability. Connective tissue becomes less resilient with age and periods of reduced sport-specific loading. The explosive rotational and ground-impact movements characteristic of MMA place enormous stress on knees, hips, shoulders, and the spine. A fighter who could absorb takedowns easily at 27 may face different tissue response at 35 or 38.
Weight cutting risks. Extreme short-term weight cutting — a widespread practice in combat sports — places acute stress on the cardiovascular and renal systems. In older fighters whose metabolic and hormonal profiles have shifted, this process carries heightened risks compared to their competitive prime years.
What This Means for Canadian Recreational Martial Artists
Canada's martial arts participation rates are high. Hundreds of thousands of Canadians train in Brazilian jiu-jitsu, Muay Thai, MMA, wrestling, and boxing. Many take extended breaks from training — sometimes years — due to injury, career changes, or family obligations. The questions raised by the Rousey-Carano event apply in scaled form to recreational athletes considering a return to sparring or competition.
Key considerations for Canadians returning to contact martial arts after a significant break:
Get a medical clearance before resuming contact training. A sports medicine physician can assess cardiovascular readiness, baseline neurological function, and musculoskeletal risk factors before you take the first hit. This is not bureaucratic caution — it is the difference between a successful return and a preventable injury.
Understand the cumulative brain health picture. If you competed actively in contact sports for years before your break, speak candidly with a physician about your history of concussions, sub-concussive events, and current neurological baseline. Technology to assess baseline cognitive function (ImPACT testing, neuropsychological evaluation) is increasingly available in Canadian sports medicine clinics.
Rebuild specific fitness before contact. Returning to full sparring at week two of a comeback is a recipe for injury. A structured progression — drilling, technical work, light contact, graduated sparring — over several months mimics the physiological preparation that professional fighters use and dramatically reduces the risk of acute injury during a comeback.
Use age-appropriate expectations. The most dangerous thing about a comeback fight is the competitive mindset. Athletes returning in their late thirties are not physically the same as they were in their prime, regardless of how they feel in training. A sports medicine physician can help calibrate realistic performance and recovery expectations.
A Note on Celebrity MMA and Its Influence
The MVP MMA 1 event is part of a broader cultural trend toward celebrity-adjacent combat sports that blur the line between athletic competition and entertainment. The spectacle of Rousey vs. Carano — two recognizable figures from beyond the active competitive pool — draws attention, including from fans who may be inspired to begin or restart their own martial arts training.
That inspiration is not without value. But Canadians who want to train in combat sports should do so with a clear-eyed understanding of the health demands involved and with proper medical support in place.
If you are considering returning to martial arts after a break, or if you are managing a sports-related health concern, ExpertZoom connects you with qualified sports medicine physicians and health professionals across Canada.
This article is for informational purposes only and does not constitute medical advice. Consult a qualified health professional for guidance specific to your situation.
