Frank William Dux ( //) is a martial artist and fight choreographer. Dux established his own school of ninjutsu in 1975 called Dux Ryu Ninjutsu. An article about his purported exploits, which appeared in Black Belt in November 1980, was the eventual inspiration for the 1988 film Bloodsport starring Jean-Claude Van Damme.
Martial arts career
Dux states that he was introduced to and trained in Koga Yamabushi Ninjutsu by Senzo Tanaka. Dux's martial art style, Dux Ryu Ninjitsu, is not a koryu (15th century feudal form of Ninjutsu), but is still claimed to be "based on its Koga Ninja root principles of adaptability and consistent change". Dux taught a technique he calls DUX FASST (Focus-Action-Skill-Strategy-Tactics).
The accuracy of many of Dux's personal claims has been disputed, including his martial arts background, fighting in the "Kumite", and prior military service. According to the Los Angeles Times, the organization that allegedly staged the Kumite had the same address as Dux's house, and the trophy he claims to have won was bought by him at a local trophy store. This was disputed by Dux, who claimed that the receipt was fabricated. He also claims that his critics are part of a conspiracy to discredit him, led by ninjutsu master Stephen K. Hayes, who Dux claims views him as a threat.
Dux's credits on martial arts films are as follows:
- 1988 Bloodsport (fight choreographer)
- 1990 Lionheart (fight choreographer) / (fight trainer)
- 1993 Only the Strong (fight choreographer) (additional thanks)
- 1996 The Quest (story co-author)
Dux has written a 1996 autobiography entitled The Secret Man: An American Warrior's Uncensored Story.
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- Dux, Frank & Dr. Mark D. Selner. "Unlocking Power: Keys to Success", in Black Belt, September 1980 Volume 18 #9, 46-50:58.
- Dux, Frank. "Self Defense Against Knives", in Black Belt, October 1980 V.18 #10, 30-34.
- Dux, Frank. The Secret Man: An American Warrior's Uncensored Story (ReganBooks, 1996) ISBN 0-06-039152-9 and ISBN 978-0-06-039152-2
- Dux, Frank & Gordon F. Richiusa. "The Guide to Ninjutsu Knife Fighting", in Inside Kung Fu Presents: The Complete Guide to Ninja Training, July 1987: 76-79.