Medical symbol with caduceus and a DNA strand

About

BLACK BELT SPORTS MEDICINE

Black Belt Sports Medicine Systems was born from a passion for both martial arts and athlete care.

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 and white photo of a smiling man with short hair wearing a t-shirt with a bear and star logo.

Founder + Instructor

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.

OUR TEAM

OUR TEAM

Ceritfied Athletic Trainers

  • A woman with dark hair wearing a black Nike shirt and gloves, standing indoors with blurred background.

    Norma B

    ATC

    Covering Black Sports Medicine events.

  • A smiling man with dark hair and a beard wearing a red shirt and purple gloves, holding a black medical backpack with a white cross symbol.

    Jacob Melgar

    ATC, DPT

    Jacob started with BJJ as a student and catapulted himself into a AT that covers multiple sports on the road.

  • A woman smiling with arms crossed, standing outdoors in front of green foliage, wearing a light blue button-up shirt and gray pants.

    Gena Falgout

    ATC

    Gena jumped into action for her first IBJJF event in Sacramento this year.

  • Close-up of a smiling man with short blond hair and blue eyes, standing in front of a black background with yellow and white text.

    Dr. Brain Smith

    ATC

    Dr. Brain Smith covers IBJJF events for Black Belt Sports Med. Brian has a doctorate in health sciences and is an ATC. While Brian drives the MSAT at University of West Florida as full time faculty and Program Director.

  • A young woman with long dark hair, smiling and sitting on a bench or ledge in a gym or sports arena. She is wearing a red jacket with the logo 'CSUN Athletic Training' on it, beige pants, and has her hands clasped together in front of her.

    Eira Perez

    DC, ATC

    New Team Member!

  • A smiling man with dark hair, a beard, wearing a white shirt, standing in front of a gray wooden background.

    Ill Song

    DTC

    Another year of Jiu Jitsu mania trauma! Dr. Song likes to mix it up as a purple belt as well.

  • A man with glasses, a beard, and a mustache, sitting indoors, looking attentively to his left, wearing a black shirt.

    Anthony Vidali

    ATC

  • A man standing on a blue and yellow martial arts competition mat inside a large gym or arena, raising his arms in celebration, wearing a red T-shirt with black sleeves that reads 'Black Belt Sports Medicine.' Behind him, a large screen displays the IBJJF logo and images from a Brazilian Jiu-Jitsu event, with banners and tables around.

    Mr. Lonnie

    ATC

    on the travel medical squad for Worlds #IBJJF

  • A woman in a red shirt with purple hair, wearing a grey headband and a smartwatch, coaching or talking to a person in a martial arts gi, in a crowded indoor setting with yellow chairs in the background.

    Tori Lam

    ATC