Kiai

気合

Martial shout used to focus energy, tighten core muscles, and project intent.

Quick Facts

CategoryConcept / Principle

Pronunciation/[kee-eye]/

Alternative NamesSpirit shout, Battle cry

Definition

Kiai merges two concepts: Ki (internal energy) and Ai (unify). It manifests as a sharp diaphragmatic exhalation accompanied by a loud vocalization. Executing Kiai tightens the core muscles at the moment of impact, maximizes force output, eliminates hesitation, and startles the opponent.

Related Terms

Makiwara巻物 / 巻き藁

Traditional Okinawan training post used to develop striking power and condition impact surfaces.

Jodan上段

Upper level target area of the body in Japanese terminology (head and neck).

Chudan中段

Middle level target area of the body (chest, abdomen, and torso).

Zanshin残心

State of relaxed alertness and sustained mental focus before, during, and after a technique.

Associated Martial Arts

ITF Taekwondo Takamura Shindo Yoshin-ryu Tenjin Shin-ryu Jujutsu WT Taekwondo Jikishin-ryu Jujutsu Byakuren Kaikan Asayama Ichiden-ryu Tenjin Shin'yo-ryu Jujutsu Shotokan Kyushin-ryu Jujutsu Takagi-ryu Jujutsu Chokushin-ryu Jujutsu Shindo Yoshin-ryu Jujutsu Unkei-ryu Jujutsu Seidokaikan Karate Sekiguchi-ryu Jujutsu Hontai Yoshin-ryu Jujutsu Jundokan Goju-ryu Shinno Shinto-ryu Jujutsu Kyokushin Budokai Shibukawa-ryu Jujutsu