Who We Are

In 2009 Robert Mrotek formed Inner Strength Martial Arts in Superior, Wisconsin. Inner  Strength Martial Arts is a full-time martial arts facility offering American  Karate, Little Billies, Gracie Jiu-Jitsu, Muay Thai Kickboxing, Women’s Self-Defense, Mixed  Martial Arts, Cardio and Conditioning, and Plyometric Courses. Inner Strength  Martial Arts has over 20 MMA fighters training out of the school, and is the  only full time martial arts facility in the Twin Ports Area.

What We Do

Through a dedicated, systematic, and intensive martial arts program, Inner Strength Martial Arts produces the incentive to become a more confident individual both physical and mental regardless of age or sex. These programs offered at Inner Strength Martial Arts will help you become a better student in school, a more focused individual in the workplace, and teach you how to be a leader in society.

Inner Strength Martial Arts is a black belt school, a family school, a school that everybody can be proud to be a part of. Our goal is to offer a family friendly environment where everybody can be part of a successful team, and work together to help each other achieve their goals and their dreams.

Here at Inner Strength Martial Arts we strive for each and every student to learn what it means to be loyal, respectful, trustworthy, dependable, and honorable. The martial arts are more than learning how to defend yourself; it makes you into a special kind of person that is difficult to find in today's society. Here at Inner Strength Martial Arts everybody is going to learn to work as a team, and to be there for one another as a family.

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