In every individual, there are many hidden talents and something special and magical. At the World Martial Arts Center, it is our joyful mission to assist you in finding your special and unique talents and help you turn those talents into skills that will make life more rewarding and fulfilling.

We offer not just a complete martial arts curriculum, but holistic and training for the body, mind and spirit. In addition to strength, cardio, flexibility and agility training, our students receive internal energetic training, nutritional training, and mental and spiritual training, including meditation and philosophy.

We welcome men, women and children of all ages, shapes, sizes and backgrounds and are committed to providing a safe, supportive, friendly, yet challenging environment for every individual who takes the powerful step to train at the World Martial Arts Center.

We Will Help You Get the Results You Want!

  1. Increase endurance and cardio conditioning
  2. Lose body fat
  3. Tone muscles
  4. Increase flexibility
  5. Strengthen your immune system
  6. Improve your appearance
  7. Improve your motivation
  8. Improve your self-image
  9. Develop better focus and memory
  10. Improve mental alertness
  11. Reach your goals
  12. Develop more confidence and courage
  13. Feel better

[Sa·Bum·Nim] is the Korean term for "master." A SaBumNim is a guide and instructor, through whom your knowledge of martial arts will come. To be a SaBumNim means one has earned the honor to pass on the invaluable lessons and experiences of numerous masters and sages. To be a SaBumNim means always being there for one's students and striving to help them achieve their absolute best. To be a SaBumNim means not only having years of martial arts training, but also years of martial arts experience. Experience means having to apply one's martial arts training in real life situations. This is what separates a SaBumNim from just any martial arts instructor. It does not matter how many books you've read, how many video tapes you've watched, how many classes you've sat in or how much knowledge you have in your head. If you've never been in the water, you don't know what swimming is. You know you have mastered the ability to swim when you have been thrown overboard in treacherous waters and there's no one to help you. SaBumNim has trained extensively with nine of the world's most renowned, respected and innovative Grandmasters and Masters of the Twentieth Century.

These phenomenal martial artists include: Master Chin Yun Chung, Grandmaster Sang B. Ko, Soke John Davis, Grandmaster Jong Yuk Ki, Grandmaster J. Choi, Grandmaster Billy Davis, and Grandmaster Chih-Young Lin.

The Driving Forces

The instructors are a driving force of the dojang. So you, as instructor, teacher, and eventually master, must be aware, must be absolutely sure of what you are driven by. You must be driven by love, a desire to help others, a desire to grow and contribute to the world. A desire to empower yourself and others, a desire to leave this world a better place than what it is while you are here. Instructors should never be driven by greed, anger, negativity, hatred, ignorance, laziness, or the need to impress others, dominate, or hurt others. These are the results of being driven by pain and fear. Look at the world's past and present, and you can see the fruits of pain and fear; the nightmares they have created, the devastation of countries, cultures, and the human spirit. Pain and fear are truly powerful driving forces in the world and we come up against then in one form or another every day.

Yet there are other just as powerful driving forces that are undeniably the most enduring, creative, transformational, healing and empowering. These driving forces are love and faith. As instructors, teachers, masters, our practice is to develop ourselves to be the embodiment, the existence, of love and faith, and in this way, be the possibility of love, faith, transformation, peace and empowerment for all who come in contact with us or in contact with our students. We should derive a great joy and sense of acknowledgement from this achievement. Just as a drop of water that falls into a pond has a rippling effect that starts from one point and continues to expand outwardly in every direction so should our influence, our driving force, take effect.

The Do - the law of the universe dictates that as the ripples in the pond expand, the energy reaches the circumference of the pond and then returns back to the point of origin. So too does the ripples of your influence. Your actions, your words and your thoughts create a rippling effect in the Do, and come back to you according to what you have put out.

This truth is known from every ancient culture and every major religion and spiritual practice from Judaism to Buddhism. It has been called everything from the Law of Moses to the law of Karma. So our purpose is to be the driving force of love and faith so these will come back to us as the fruits of these seeds that we have sown, planted, watered and nurtured. We all have a karmic debt. The more of a force for good we become and create in the world, the more we lessen our karmic debt. Out of the Twelve Sacred Acts one can do, teaching is one of them. In this way, you can leave this life with accomplishments on all levels: mind, body, spirit and soul.

There is a Native American saying:  When you come into this world, you cried and the world was filled with joy. When you leave this world they should cry and you should leave with joy.


ChungSaNim Dominick is a native of the Caribbean Island of Haiti, the first black republic in the western hemisphere. A three time Black Belt Hall of Fame inductee, she holds a 6th degree Black Belt in Jujitsu, a 4th degree in HapKiDo, and a 4th degree in TaeKwonDo. Dominick is the first and only female Shihan in Kumite Ryu Jujitsu under Soke Lil John Davis; she has been featured in literature and celebrated posters featuring Doctor Moses Powell and Soke Lil John Davis. Certified as International Instructor in HapKiDo, ChungSaNim has hosted seminars in New York City, Delaware, Washington DC, Haiti and the Dominican Republic. In her constant pursuit of excellence, ChungSaNim is furthering her formal education in Philosophy at the Doctorate level

Chungsanim Betty has been training under SaBumNim since 1997. A native of New York City, Betty earned her 1st Dan in HapKiDo in 2001, 2nd in 2004 and 3rd in 2009. To complement her HapKiDo training, she has also trained in Wing Chun Kung Fu, Shaolin Kung Fu, Judo, and Jujitsu. Betty holds the rank of 3rd Dan under Soke John Davis in Kumite Ryu Jujitsu. A 3 year stint as a personal trainer and kickboxing instructor, studying directly under a former Mr. America, gave her a solid foundation in the anatomy of the body. At WMAC Manhattan, Betty was the main children's instructor from 2003-2006 and has taught classes and seminars for adults and children. Her main goal is to promote martial arts to the world as a way to achieve spirituality, health and empowerment.

Chungsanim Brad was born and raised in Los Angeles and has been studying martial arts since the age of 10. He practiced several styles, attaining ranks in Tae Kwon Do, Shaolin Kempo, and in Kuk Sool Won before committing to HapKiDo at the World Martial Arts Center. He currently holds the ranks of 4th Dan in HapKiDo and 2nd Dan in Kumite Ryu Jujitsu. As an instructor, Brad focuses on fundamentals, core concepts and conditioning. He especially enjoys working with children and has been teaching children's classes in Brooklyn since the location opened in 2003. He was proud to see many of his students as part of WMAC's first group of junior black belts.

Chungsanim Jonathan received his 1st Dan Black Belt in HapKiDo in 2001, a 2nd Dan in 2004, 3rd Dan in 2010 and 4th in 2015. In addition, he also holds a First Dan – 2008 in VSK Jujitsu - Soke John Davis. Jonathan has over 1500 teaching hours, and has led specialty seminars in weapons, sparring, falling, philosophy, meditation and teacher training. He works as an event and marketing producer in Manhattan.


Chungsanim Jill has trained with Master Herbert since 1998 and has a 4th degree black belt in HapKiDo. She has the rare ability to teach HapKido and martial arts to children as young as 3 and to the elderly. She specializes in joint locking, special weapons and tactics. She graduated from Fashion Institute of Technology with a degree in Fashion Design. She has been a buyer and in product development. She is the USA Sales Manager for Edge Accessories and is married with 2 children.

Kyosanim Eva was born and raised in Hamburg, Germany. She moved to New York City in March 1995 to study acting at the Lee Strasberg Theatre Institute. After beginning her training in Hapkido under SaBumNim Herbert, her passion shifted to Martial Arts and Healing Arts. She holds a 3rd Dan in Hapkido and has taught well over 3000 Hapkido classes at WMAC. She holds a 1st Degree Black Belt in Kumite Ryu Jujitsu under Soke Lil’ John Davis. Eva has been a Certified Pilates Machine and Mat Instructor with Half Moon Pilates since 2007, a Certified Fitness Trainer since 2002, and is currently certified with AAAI/ISMA. Eva is an herbal practitioner certified by Clayton College of Natural Health. In October 2008 Eva formed her own company All About You Fitness, LLC, where she teaches Pilates, weight training, balance ball, pre- and post natal, kick-boxing and HapKiDo to private clients one-on-one or in duet sessions. In 2012 Eva completed her training to become a Holistic Health Coach and is a member of the American Association of Drugless Practitioners, assisting her clients in reaching their all-around health goals, finding nutrition that is best suited for their live and individuality.

Kyosanim Holly was born in Ukraine and immigrated to the US in 1990. She has trained with Master Herbert for over 15 years and is a 3rd degree black belt in HapKiDo. Holly Kozak is a nurse practitioner on the stroke team at Maimonides Medical Center and she teaches graduate students as adjunct faculty at NYU School of Nursing. In addition, Holly is a Licensed Acupuncturist with a degree from Pacific College of Oriental Medicine. During her training at World Martial Arts Center she has mastered multiple weapons and techniques, specializing in sword, staff, SAI, tonfa and rope. Holly has trained many students towards their black belts and continues to teach as an instructor on a regular basis. Holly's focus and emphasis is on quality and precision.

Lena Viddo is a 3rd Dan, senior instructor of Hapkido at World Martial Arts Center in Downtown Brooklyn.  She has been a student of Grandmaster Sabumnim Herbert for over 22 years. Lena has a comprehensive grasp of how to help students progress from one level to the next. She knows how to work with different body types and levels of fitness and can help them build strength, stamina and fluidity, and give them confidence to become amazing martial artists. Lena’s range of disciplines extend beyond athletics and into the arts and other areas. Lena is an accomplished multimedia artist and painter. Trained in Italy and New York she has been exhibiting internationally and locally for almost three decades. Lena now lives in Bed-Stuy Brooklyn and maintains her studio in Bushwick Brooklyn. She speaks Spanish, Swedish, Italian, French, Portuguese, and English.

With “Healthy, Happy” as a motto, Black Belt JP McDavid’s focus is on the holistic method of living and teaching by creating balanced and fulfilling lives by reducing the mental, emotional and physical stress that we all place on our bodies. “JP,” as he is known to all who work with him, has been with the Heights Casino for Thirty years. Certified in 1994 by the American Aerobic Association International (AAAI) and Full Circle Life Coaching with David-Dorian Ross. J.P. has accumulated 30 years of teaching experience in personal training, combination of group crosstraining classes and wellness strategies. JP is a 2nd Dan in Han-Su Hapkido, with over 11 years of experience. He is a senior instructor at World Martial Arts Center under the guidance of Sabumnim David Herbert. JP is the creator and owner of Enercize, a corporate and individual holistic Wellness Company that promotes Wellness through presentations on the power of choice in our lives.

Black Belt Rosa J. Cho has been studying HapKiDo under Master Herbert at the World Martial Arts Center (WMAC) since 2001 and is a 2nd degree black belt. Rosa has been teaching both adults and children’s classes at WMAC since 2003 and has worked with individual clients as a personal trainer. In addition, she has also studied wushu, kickboxing, yoga and swing dancing. Believing in the power of achieving health through empowering one’s mind, body and soul, she brings a lot of positive energy and enthusiasm to every class and cares for each student’s paths to well-being and empowerment. When she is not training or dancing, she is studying as a doctorate candidate at the NYU Silver School of Social Work, working on socioeconomic justice and women’s rights issues. 

Black Belt John Romano is a native New Yorker born in Brooklyn.   He is a 3rd degree black belt earning his 1st degree in 2005 and 2nd degree in 2009.  John has trained with Sabumnim Herbert for nearly 15 years and has taught and assisted over 500 classes in HapKiDo and Judo.  As a compliment to training at WMAC, John has also trained in other forms of HapKiDo as well as Judo and Kumite Ryu Jujitsu.



Black Belt Pete Caban was born and raised in New York City. He began his training at WMAC with Master Herbert in 2009 and has reached 2nd Dan Hubae. Pete has taught over 3 hundred adult and children's classes, and specializes in sword and dagger. Pete believes that martial arts training improves people's lives and makes them better human beings, and he is devoted to sharing his understanding of HapKiDo with new students.


Black Belt Douglas Graham is a 2nd Dan black belt who has been training in the art of hapkido at WMAC for the past ten years. His goal is to become a master instructor, a kyosanim. He has been teaching at this school for the past seven years. He started teaching as an assistant to Kyosanim Eva, and later as an assistant to Chungsanim Jill.  He is presently a teacher of one of the children's classes and of two of the adult classes. His training has been solely from WMAC and privately from Chungsanim Betty.  He has recently retired from a career of teaching and administration within the NYC Department of Education. He believes that individuals learn in many different ways, and that a good instructor adapts his teaching style to the learning style of the student. He believes that a well grounded practice of martial arts is a lifelong learning commitment that helps to keep one physically and mentally fit, healthy, confident and aware of ones surroundings, which is essential for a safe life in our constantly changing world. He also believes that our Master Sabumnim provides a strong leadership with the driving forces of love and faith towards the right path of the "Do".