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An eku (sometimes spelled eiku or ieku) is an ancient weapon of Okinawan kobudō that originated from an oar, approximately 160 cm in length. According to myth, the oar was traditionally adapted for use as a weapon of self-defense by fishermen against foes armed with more conventional weapons. When the Japanese had conquered Okinawa, their old officers taught commoners weapons use as a first line of defense against a possible Chinese invasion. Since quality weapons were expensive, the civilians had to use what equipment they had; the Ryukyu oar (in Okinawa "eku" or "eiku") came to be used in place of the naginata.
Usually before learning eku properly, one has to master the bo. The eiku has a displaced center of gravity and is heavier than the bo. It is thus considered more difficult to master. Because of its weight, eku techniques often capitalize on the momentum of large circular attacks.
- Chikin Sunakake no Eku - Ryukyu Kobudo
- Tsuken Akachu No Eiku De - Matayoshi Kobudo
- Eiku no Ho - Ryuei-Ryu
- Goeku no Eku (also known as Eku no Eku) - Hokama Kobudo
- Shugoro no Kai (Eku) - Nakazato Shugoro Hanshi Judan Kokusai Rengokai Kobudo
- Ufuchiku no Eku - Nakamoto Kiichi Hanshi Judan Okinawakan
- Saji no Eku - Isa Kaisho Soke Ufuchikuden-Ryu Kobujutsu
- Kasshin no Eku - Isa Kaisho Soke Ufuchikuden-Ryu Kobujutsu
- Article, images & video on Eku (Okinawa Prefectural Government website)