INTERNATIONAL
SELF DEFENCE
SCHOOL BELGIUM
HEAD INSTRUCTOR & FOUNDER OF I.S.D.S.
Sifu / Guro Patrick Van Vlasselaer
50+ Years of Martial Arts Experience
Direct Student of Guro Dan Inosanto
Full Instructor Level 15 – JFGF / JKD & Filipino Martial Arts
More Than Five Decades of Martial Arts Experience
Sifu / Guro Patrick Van Vlasselaer began his Martial Arts journey in 1970.
What started as training developed into more than five decades of continuous study, teaching and exploration across a wide range of Martial Arts and Self Defence systems.
During his studies in Physiotherapy at KU Leuven, he began teaching Self Defence and was promoted to Monitor Self Defence. In 1980, he founded the International Self Defence School (I.S.D.S.) and developed the Intensive Self Defence System, bringing knowledge from different Martial Arts together into a practical approach to modern self defence.
Today, Sifu Patrick continues to train and develop his knowledge. He is a direct active student of Guro Dan Inosanto and holds Full Instructor Level 15 in Jun Fan Gung Fu / Jeet Kune Do and Filipino Martial Arts (Kali – Escrima – Silat).
His background spans striking, grappling, trapping, ground fighting, weapons training and practical self defence, supported by decades of seminars, instructor training, camps and direct study with internationally recognised Martial Arts instructors.
Direct Student of Guro Dan Inosanto
A significant part of Sifu Patrick Van Vlasselaer's Martial Arts development was shaped through his long-standing training under Guro Dan Inosanto, one of the world's most influential Martial Arts instructors and a direct student and training partner of Bruce Lee.
Through decades of training and development within this lineage, Sifu Patrick achieved Full Instructor Level 15 in both Jun Fan Gung Fu / Jeet Kune Do and Filipino Martial Arts (Kali – Escrima – Silat).
This represents one of the highest levels reached in Sifu Patrick's Martial Arts journey and reflects the depth of knowledge and experience he brings to I.S.D.S. today.
A Broad Martial Arts Background
More than five decades of training have given Sifu Patrick experience across a broad spectrum of Martial Arts.
Rather than focusing on a single system, this knowledge forms the foundation of the multidisciplinary approach taught within I.S.D.S.
STRIKING
Boxing • Thai Boxing • Karate • Kickboxing
TRAPPING & CLOSE RANGE
Wing Chun • Jun Fan Gung Fu • Jeet Kune Do
GRAPPLING & GROUND FIGHTING
Judo • Shooto • Brazilian Jiu-Jitsu
FILIPINO MARTIAL ARTS & WEAPONS
Kali • Escrima • Silat
SELF DEFENCE
I.S.D.S. • Practical Self Defence • Situational Awareness • Anatomy & Physiology • Psychology • Legal Aspects of Self Defence
Throughout his Martial Arts journey, Sifu Patrick expanded his knowledge through instructor programmes, seminars, international training camps and specialised courses.
The certificates below document different stages of this journey and reflect the depth and diversity of his Martial Arts education.
Training, Qualifications & Certificate Archive
Sifu Patrick's qualifications reflect decades of Martial Arts training, instructor development and specialised study.
The archive below documents different stages of his Martial Arts journey, from his current Full Instructor Level 15 qualifications to earlier instructor certificates, seminars, international training camps and specialised courses.
Current Full Instructor Qualifications
FULL INSTRUCTOR – LEVEL 15
Jun Fan Gung Fu / Jeet Kune Do
FULL INSTRUCTOR – LEVEL 15
Filipino Martial Arts – Kali • Escrima • Silat
Jun Fan Gung Fu & Jeet Kune Do
Train With SIFU Patrick
More than five decades of Martial Arts knowledge continue to form the foundation of I.S.D.S. training today.
Whether you are taking your first steps in Martial Arts or already have previous experience, you are welcome to discover the multidisciplinary I.S.D.S. approach during our weekly training.