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Your Trusted Martial Arts Training Center in Union, NJ
At Duncan Martial Arts, we are dedicated to providing a comprehensive martial arts experience that enriches lives through physical, mental, and spiritual development. Founded on the legacy of Professor Ronald Duncan, the Father of American Ninjutsu, our Way of the Winds System combines traditional disciplines like Jujutsu, Taijutsu, and Kobujutsu with modern self-defense techniques. With over 50 years of expertise, our Chief Instructor Gregory Duncan, a Hall of Fame inductee, leads a team committed to fostering confidence, discipline, and practical combat skills.

We offer programs for all ages, from children to seniors, emphasizing personalized growth and resilience. Our curriculum includes weapons training, fitness conditioning, and community engagement, ensuring a holistic approach to martial arts education.
Services
Martial Arts Training Self-Defense Programs Weaponry Instruction Fitness Conditioning Youth Programs
Highlights and features
  • We offer over 50 years of combined martial arts expertise from certified instructors.
  • Our curriculum combines traditional Jujutsu, Taijutsu, and Kobujutsu with modern self-defense.
  • Family-friendly programs tailored for children, teens, and adults.
  • Chief Instructor Gregory Duncan is a Hall of Fame inductee with national acclaim.
  • We emphasize practical, effective techniques for real-world scenarios.
Associations and certifications
  • World Professional Martial Arts Association Hall of Fame
What people say
Expert instructors Family-friendly Effective techniques Supportive community Well-structured programs
Services
Martial Arts Training
Our martial arts training programs cater to all ages, blending traditional disciplines like Jujutsu and Taijutsu with modern self-defense. Students develop physical strength, mental focus, and spiritual resilience in a supportive environment. The curriculum emphasizes practical applications for real-world scenarios.
Self-Defense Programs
Self-defense courses teach practical techniques derived from Taijutsu and Jujutsu, focusing on awareness, combative measures, and improvised weaponry. Students learn to address various situations with confidence and precision, tailored to their skill level and experience.
Weaponry Instruction
Weaponry instruction covers traditional and non-traditional weapons, including historical context and practical use. Students explore Kobujutsu and modern applications, enhancing their understanding of combat strategies and historical martial arts practices.
Fitness Conditioning
Fitness programs improve cardio endurance, speed, agility, flexibility, and strength through martial arts-based conditioning. Designed to optimize physical performance, these sessions complement technical training and promote overall wellness for all age groups.
Youth Programs
Youth programs introduce children and teens to martial arts fundamentals, fostering discipline, confidence, and teamwork. Age-specific curricula balance skill development with fun, engaging activities that build a strong foundation for lifelong growth.
People
Gregory Duncan
Chief Instructor
Gregory Duncan, son of martial arts pioneer Ronald Duncan, has over 50 years of expertise in Jujutsu, Taijutsu, and Ninjutsu. A Hall of Fame inductee, he leads Duncan Martial Arts with a focus on practical self-defense and tradition.
Paul Flavius Nechita
Instructor
Paul Flavius Nechita is a dedicated instructor known for his expertise in demonstrations and personalized training. He contributes to the dojo's dynamic teaching approach and student engagement.
Tiberiu Neamu
Instructor
Tiberiu Neamu specializes in practical self-defense techniques and weapons training. His instructional style emphasizes real-world applications and student adaptability in various scenarios.
Cosmin Capitanu
Instructor
Cosmin Capitanu brings extensive experience in martial arts demonstrations and curriculum development. He focuses on fostering student confidence through structured, progressive training methods.
Questions
Do you offer free trial classes?
Yes, we provide a free trial class to help you experience our training environment and teaching style.
What age groups do your programs cater to?
Our programs are designed for students aged four to seniors, with age-specific curricula and pacing.
Are your self-defense techniques effective in real situations?
Yes, our methods are practical and tested, focusing on real-world scenarios and adaptable responses.
Who are the lead instructors?
Chief Instructor Gregory Duncan, along with experienced instructors Paul Flavius Nechita, Tiberiu Neamu, and Cosmin Capitanu.
What makes Duncan Martial Arts unique?
Our blend of traditional disciplines, practical self-defense, and legacy of expertise from the Duncan family sets us apart.