Define Defense is Boulder’s premier place for martial arts, self defense and personal training. It is not the typical martial arts school as it incorporates strength & conditioning training into all classes. No matter what level you are at or how old you are, all clients enjoy a great training and learning experience.
The facility opened in April, 2011 with the goal of offering high quality instruction in:
- Modern Martial Arts
- Mixed Martial Arts
- Brazilian Jiu Jitsu
- Karate-Jutsu for children
- Self Defense
- Personal Training
Define Defense has a fully equipped 2,400 square feet gym which includes over 1,000 square feet of martial arts mats and cutting edge gym equipment. They also provide clients with 2 spacious brand new locker rooms and showers.
Sander Vanacker has been training martial arts since 1993 but has also tested himself in semi-professional cycling, triathlons, weight lifting and overall fitness training.
During his martial arts career, he has been extensively trained in Wado Ryu Karate and Japanese Ju Jutsu. Throughout the years, he has also added Mixed Martial Arts and Brazilian Jiu Jitsu to his skillset. His approach to self defense was taught to him by chief combative instructors of the special police forces in Belgium and it is his goal to create a purely realistic and effective program for people who wish to learn how to maximize their fighting skills and safety.
Throughout his bachelors in Physical Education, Personal Training and Sports Management, he has also been trained in countless other individual and team sports as well in the anatomy and physiology of the human body. Sander always strives to continue learning and improving his skills to offer his clients the best instruction possible.