123 W. Hampden Ave. Unit J, Englewood CO 80110

Phone - 303.783.9632,

Contact - info@umac.us

Our Instructors

Ms. Theresa Byrne, B.A., C.M.T

Theresa Byrne is a 3rd Degree Black Belt in martial arts, a fitness instructor, personal trainer, motivational speaker, life/empowerment coach, and creator of “Finding Your Voice,” a self-empowerment program for adults. After training thousands of kids and adults in the Denver area on how to lead a healthy lifestyle with her martial arts, fitness, and life coaching expertise, she was asked to become the life and fitness coach on the new reality TV show, “Fitting In.” Theresa is a real-life ball of energy and the creator behind The Revolution, a program that gives people the tools and inspiration to lead healthy lives by connecting their mind, body, and spirit. More than an exercise DVD, The Revolution is a way to help people find their own power. Theresa is owner/instructor of United Martial Arts Center in Denver, Colorado. Theresa Byrne is the Program Director as well as the lead instructor in the school’s Little Ninjas Program and children’s programs. She's also an instructor in Adult and Cardio Kickboxing programs. Ms. Byrne has been studying martial arts since 1996 and continues her study of teaching and training through nationally recognized martial arts training organizations.  She is a certified kickboxing instructor through both AAAI (American Aerobic Association International) and AFAA (Aerobic & Fitness Association of America).

Theresa currently has a children’s workout DVD on sale HERE and was recently featured in Vim and Vigor Magazine.

Click here to read more about Theresa

Mr. Terry Harmel

Terry Harmel began training in Tae Kwon Do in 1992, as a sedentary 33 year old. He knows how it feels to have aching muscles and stiff joints. He knows how it feels to be the least athletic person in the room. And he knows how it feels to overcome these limitations and accomplish his goals in martial arts.

Mr. H likes traditional techniques and working with weapons, especially escrima sticks. He gets his greatest satisfaction out of watching (and helping) someone do something they never thought they could.

Mr. Wade Pugsley

Wade is a 1st Degree Blackbelt instructor who will be testing for his 2nd Degree soon. Wade instructs the advanced upper belt classes and Black Belt training prep classes. Wade enjoys the technical aspects of martial arts which makes him a great instructor.

United Martial Arts & Fitness Center

Enhancing Lives Through Martial Arts

Master Chris Natzke

Master Natzke is a 6th Degree Black Belt and 32 year veteran of the Martial Arts. He is the Master Instructor of the United Martial Arts Center.


After a very successful 10-year sales management career, Mr. Natzke left the “corporate world” to pursue his dream of owning and operating a professional martial arts studio. He is a 1999 gold medalist in the U.S. Tae Kwon Do Championships, NAPMA Regional Director, and a protege of Bill “Superfoot” Wallace.

Ms. Aubrey Twogood

Ms. Aubrey is a 1st Degree Black Belt and has been training in the martial arts since 2005. She's a gifted martial artist that has won a number of 1st, 2nd, and 3rd places in the various martial arts tournaments that she's participated in.  She loves working with students, from the Little Ninjas at age 3 all the way up to the Black Belt Candidates!  Her positive energy and ability to make difficult material fun make her an outstanding instructor.

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