Original NGA Headquarters

Guttenberg NJ 1963-2018

Nihon Goshin Aikido

Aikido is a Japanese Martial Art. The Literal translation is "The Way in Harmony with the Spirit." Defensive in nature, the style guides an attacker's committed momentum into a circular motion that allows the attacker to be thrown or controlled by his own force.

The Nihon Goshin curriculum combines traditional Aikido in a closer combat fighting distance with modern teaching techniques. Three arts combined into NGA are Judo which give throws, Japanese Jiujitsu adding joint locks, and some basic Karate striking techniques. This gives the student a broader choice of defense.

Marble Surface


For over 20 years, the Aikido Academy of Self Defense in Washingtonville, NY has been sharing and educating families in the Washingtonville community and surrounding area, in the discipline of martial arts and self defense instruction. In the year 2000 Sensei Ken Marvin who is now a 4th Degree Black Belt and 1st Degree in Tae Kwon Do took over Martial Art Center (est. 1994) and renamed it Martial Art Studio. In 2009 Sensei Marvin was in Action Magazine Hall of Honors. Years later he renamed the dojo Aikido Academy of Self Defense. Sensei Ken Marvin ran the school for 18 years. Today it is run by one of his black belts along with some of the higher ranking black belts and high ranking students. Programs added to this location are Self Defense, Striking Classes (Muay Thai/Kickboxing), Open Mat BJJ, private BJJ Classes, and Kyokushin Karate. All of the Aikido black belts are certified in the NGA Association. The top 3 instructors were all promoted directly by Go-Dan (5th Degree) Shihan Robert B. McEwen and Shihan Richard Bowe whom are the highest ranking in the association. Many instructors have training in other arts such as Koga Ryu Ninjutsu, American Nippon Jujutsu, Japanese Jujitsu, and Judo. Some instructors are black belts in NGA Aikido and Tae Kwon Do and have been in Action Martial Arts Magazine's Hall of Honors. A variety of martial arts are combined into use at the Aikido Academy. Sensei Decker is a 4th Degree Black Belt (Yan-Dan) in NGA Aikido. He brings over 25 years of training. Studied in arts of Koga Ryu Ninjutsu and American Nippon Jujutsu. Sensei Decker was also in the Action Martial Arts Magazine's Hall of Honors in 2009. Sensei DePaolo is a 4th Degree Black Belt (Yon-Dan) in NGA Aikido and 2nd Degree Black Belt in Tae Kwon Do. He has been training since 1997 and has also received the Action Martial Arts Magazine's Hall of Honors Awards for Outstanding Achievements in Martial Arts. Almost all the instructors at Aikido Academy of Self Defense Washingtonville are certified and trained in American Heart Association CPR/AED/First Aid. First Aid Kit and Pocket Mask on site. Aways a Licensed NYS EMT on site for injuries, emergencies or medical conditions.

BJJ Private Class


Open Mat