When I began competing as a blue belt in local Southern California events back in 1998, there was a noticeable lack of medical coverage for competitors. Despite the small scale of these events, I juggled both competition and providing medical care, experiences that ultimately shaped my professional journey and dedication to sports medicine today.
As the Director of Sports Medicine at Velocity Sports in Redondo Beach, Dr. Ethan M. Kreiswirth oversees sports medicine education and clinical care for athletes. He also serves as the Sports Medicine Consultant for King World Sports' Professional Boxing Program. Additionally, he is the Medical Director and Coordinator for the United States Brazilian Jiu Jitsu Federation (USBJJF) and International Brazilian Jiu Jitsu Federation (IBJJF), providing medical support since the late 1990s.
Black Belt Sports Medicine Systems was born from a passion for both martial arts and athlete care.
ABOUT BLACK BELT SPORTS MEDICINE
Dr. Ethan Kreiswirth PhD, ATC
Dr. Kreiswirth’s career includes leading the Athletic Training Education Program at Concordia University, Irvine, and serving as Head Athletic Trainer at California State University, Dominguez Hills (CSUDH) for over a decade. His background also spans professional baseball and college football, reflecting a deep commitment to athlete health and rehabilitation.
Dr. Kreiswirth holds a PhD in Athletic Training from Rocky Mountain University of Health Professions, with a research focus on musculoskeletal injuries in Brazilian Jiu Jitsu fighters. He is certified in Functional Movement Systems and Selective Functional Movement Assessment and is an American Red Cross Professional Rescuer Instructor. His work has been published in peer-reviewed journals, and he is a national speaker on sports medicine topics related to Brazilian Jiu Jitsu.
This comprehensive experience, combined with a commitment to athlete health, drives Black Belt Sports Medicine Systems to deliver specialized care to martial artists and athletes at all levels.
Founder + Instructor