Okuden Karate Jutsu employs the Koryu or classical approach, concentrating on Karate's original purpose: practical self-defense against the full spectrum of interpersonal violence. Therefore, our training methods differ greatly from those used by Karateka with a competitive focus. 

Technical matters aside, all Karate emphasizes courtesy, perseverance, ethical conduct and loyalty. These timeless principles have established Karate as an effective path to mental, spiritual and physical health.

 Aggressive and predatory individuals are often deterred by the quiet confidence and resolve of the serious martial artist. Avoiding violence though discernment and personal discretion is the safest way to negotiate conflicts and physical technique is always a last resort. That said, people have the legal right to use reasonable force in self-defense.

Adult learners are welcome at Okuden Karate Jutsu, especially beginners and those of limited athletic experience. Teenagers over 14 years are also welcome if accompanied by an adult guardian. Our classes feature partner and solo drills easily-modified to suit an individual's skill and strength. Flexible and personalized instruction encourages learners to progress and develop functional spontaneity.


Koryu Karate Jutsu features escapes, vital point strikes, throws, strangulations/chokes, joint locks and prone grappling techniques that are supported by kata as a memory tool. These techniques and the Koryu kata philosophy are generally absent from Karate Do cirriculums although some systems add "self-defence" borrowed from Ju Jujutsu or Aikido. 

It is important to achknowledge that Karate Do training methods mainly prepare students for rule-bound matches against other Karateka. The same notion also applies to most Tae Kwon Do systems. In such competitive scenarios, the technical range is limited to medium and long range hand and foot techniques at various levels of intensity.  Therefore, competitive sparring is best viewed as an element of training rather than Karate's main focus. Disciplined free sparring instills fighting spirit, improves timing and familiarizes students with physical confrontation. 

Martial artists and combat sport athletes must understand how training methods effect outcome because people under duress respond with ingrained reactions. If those reactions don't spontaneously match an incoming attack, success is unlikely. With the possible exception of elite full-contact fighters, few learners are capable of automatically switching from sport to survival tactics on a reliable basis. Sixteenth century samurai philosopher Mushashi Myamoto insisted that students train as if they were fighting for survival against a ruthless opponent. 

Technical matters aside, all Karate emphasizes courtesy, perseverance, ethical conduct and loyalty. These timeless principles have established Karate as a positive force for peace and good will .


As previously-mentioned, Koryu Karate Jutsu features escapes, vital point strikes, throws, strangulations/chokes, joint locks and prone grappling techniques that are absent from Karate Do, although some styles have broadened their technical range. The rise of Mixed Martial Arts (MMA) and the popularity of Brazilian Jujitsu has challenged the credibility of Karate Do as a fighting method. Conversely, Okinawan Karate Jutsu has been called the original Mixed Martial Art (MMA).

Karate Do developed on mainland Japan in the 1930's after Okinawan masters began teaching a simplified version of their secretive Karate Jutsu to Japanese learners. Although some Okinawan teachers shared basic grappling techniques these locks and throws were later removed by Japanese instructors determined to present Karate as a striking and kicking art. This new Japanese art soon joined Judo and Kendo as a recreational activity that became especially popular among male university students, These agressive young students were mainly interested in jyu kumite or free sparring contests, a practice that had been relatively unknown to Okinawan martial artists.

Gradually, competitive sparring, solo kata and tameshiwari (brick & board breaking) became the public face of Karate both in Japan and the West. While this phenomenon has popularized Karate in general, it has also created considerable confusion about Karate's self-defense value since the reality-based techniques of Koryu Karate Jutsu were mainly ignored or presented as a novelty. Ironically, the newer Karate Do gradually supplanted the older Karate Jutsu on Okinawa itself due to Japanese militarism and the growing popularity of sporting matches. This "reverse influence" has rendered modern "Okinawan" Karate indistinguishable from its Japanese countertpart on the mainland.Thankfully, the situation is changing as Koryu Karate Jutsu slowly gains acceptance.


First generation Japanese Karate Do instructors began teaching Kata (forms) in a haphazard manner, leaving the students to interpret the meaning themselves. This is unsurprising since their Okinawan masters had shared little of the Kata's hidden purposes. Prior to this, Okinawan sensei had taught Kata to their private students at the end of a learning cycle to serve as memory exercises to reinforce previously-learned self-defense scenarios called bunkai jutsu. Some kata were comprehensive enough to be considered complete martial systems. 

Later, Western students of Japanese Karate Do sensei learned and taught Kata in the same haphazard fashion, leading to the further proliferation of unrealistic "bunkai". Their primary mistake was assuming that the Kata were meant to teach them to counter the predictable techniques of other Karate ka. They could not have known that the Kata were actually meant to help learners remember self-defense techniques against common attacks like seizing, choking, myriad strikes and combined acts of violence. 

Sensei Duchesney has been heavily-influenced by the work of Karate Jutsu researchers like Hanshi Patrick McCarthy, Sensei Vince Morris, Sensei Hubert Laenen and Sensei Iain Abernathy. As well, George Dillman's early kyusho jutsu work has real value. Their respective work has enabled countless learners to perceive Karate as a comprehensive self-defense system.   


Sensei Duchesney employs safe methods of imparting self-defense skills and physical fitness in a respectful atmosphere. Each class also features meditation, flexibility exercises and strength-building drills. All self-defense techniques are modified to suit the individual learner. Students also learn personal security strategies for modern urban life.


Due to City of Ottawa scheduling changes in response to Covid 19, classes will resume in September 2020. Please be safe and following social distancing practices.

Monday & Wednesday: 630-8 pm - After School Room

McNabb Recreation Centre: 180 Percy St.

* To register: please email Sensei Duchesney - morjd@sympatico.ca or call 613-598-0266



Morgan Duchesney

  • Godan / Instructor License: Karate Jutsu (5th Dan Black Belt)
  • Godan / Instructor License: Wado Ryu Karate Do (5th Dan Black Belt) 
  • Sandan: Chito Ryu Karate Do (3rd Dan Black Belt)
  • Nidan: Kenpo Jutsu (2nd Dan Black Belt)
  • Police Pressure Point Tactics (PPPT) Certification
  • Certified in First Aid / CPR / Defibrillator
  • 24 years teaching martial arts


George Duimovich:

Sandan: Wado Ryu Karate Do (3rd Dan Black Belt)
Nidan: Karate Jutsu (2nd Dan Black Belt)
Shodan: Kenpo Jutsu (1st Dan Belt)
Police Pressure Point Tactics (PPPT) Certification
Roderick Chisholm - Nova Scotia: 

Sandan: Karate Jutsu (3rd Dan Black Belt)
Nidan: Wado Ryu Karate Do (2nd Dan Black Belt)

Organizational Affiliations:

  • World Congress of Shintani Wado Kai Karate
  • Canadian Karate Association


Join Sensei Duchesney to learn practical self-defense and strategies for personal safetyYou will learn: effective methods to either avoid or defeat a variety of physical threats, including sexual assaults and armed attacks that might occur in public, the workplace or even at home. The classes are designed especially for women and girls seeking self-defense training without the formality of traditional martial arts. Open to female learners 14 years and older. 

Canterbury Community Centre

Time:  Tuesday 6 pm - 7:15 pm

Dates: winter 2021 dates TBA

Cost: $60 plus HST

To register:http://cca-acc.ca/programs/

Email: programs@cca-acc.ca Phone: (613) 738-8998

What students say about the the club?

"Okuden Karate Jutsu offers comprehensive self-defense training unlike any other I've explored.  Advanced or beginner, I'd strongly recommend OKJ."