Ikken hissatsu

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Ikken hissatsu
Japanese name
Kanji 一拳必殺
Hiragana いっけんひっさつ

Ikken Hissatsu (一拳必殺[1]) is a term used in traditional karate, meaning "to annihilate at one blow".[2] This, however, does not mean that any clash can and should be resolved with the use of only one stroke,[3] but it conveys the spirit that the karateka (player) must partake in.

Traditionally, according to various practical applications of kata, karate was modeled so that a person could face more than one opponent simultaneously. However, with the advent of sports karate, this characteristic has been ignored, thus de-emphasising Ikken Hissatsu. Arduous training is required to effectively attain such a technique.[4]

During a struggle, levels of epinephrine in the bloodstream are higher than normal, which can generate a false perception of reality, causing injuries to be felt well after its end.[5]

Still new evidence using clinical data and articles have shown that some of the stories where Ikken Hissatsu was applied may have some truth. These sites are seen in injuries such as clipping the knees in football, in little league baseball when children are hit in the chest without protection causing commotio cordis.[6]


  1. ^ "空手道について". Japan Karate Association. Retrieved 15 April 2011. 
  2. ^ "What Is Ikken Hissatsu? | KARATEbyJesse". Retrieved March 11, 2011. 
  3. ^ "Shotokan del valle | ¿QUE ES EL KARATE DO ?" (in Spanish). Archived from the original on July 16, 2011. Retrieved March 11, 2011. 
  4. ^ "Diez tesis sobre el karate-do » JKA Dento Karate Dojo" (in Spanish). Archived from the original on December 28, 2010. Retrieved March 11, 2011. 
  5. ^ ""One Punch One Kill", is it Practical?". Retrieved March 11, 2011. 
  6. ^ Breaking Points: Using History, Maxims and Modern Science to Understand Kata