Seisan Seisan The karate kata (alternate names Sesan, Seishan, Jusan, Hangetsu) literally means '13'. Some people refer to the kata as '13 Hands', '13 Fists', '13 Techniques', '13 Steps' or even '13 killing positions'. However, these names have no historical basis. Seisan is thought to be one of the oldest kata, being quite spread among other Nahate schools. Shito-ryu has its own version and different versions are now practised even in Shuri-te derivatives like Shotokan (called Hangetsu) and in Wado-ryu (called Seishan). Isshin-ryū also adopted this kata. This kata is also practiced in Korean styles such as Tang Soo Do and
Ryu Yoon-ji relay. Ryu failed to qualify for the final, as she finished her semifinal run with a second slowest time of 55.85 seconds. In her final event, 50 m freestyle, Ryu raced to fifth place in heat seven by 0.06 of a second behind Venezuela's Arlene Semeco in 26.26. Unlike her previous individual event, Ryu failed to advance into the semifinals, as she placed twenty-sixth out of 75 swimmers in the preliminary heats. She also tied her position with Puerto Rico's Vanessa García. Ryu Yoon-ji Ryu Yoon-ji (also "Ryu Yun-ji", ; born December 22, 1985) is a South Korean former swimmer,