Yoshinkan
Yoshinkan (養神館 Yōshinkan lit. "Hall of Spirit Cultivation") Aikido is a style of aikido that developed after World War II in the Yoshinkan Dojo of Gozo Shioda (1915–1994). Yoshinkan Aikido is often called the "hard" style of aikido because the training methods are a product of Shioda's grueling life before the war. Shioda named his dojo "Yoshinkan" after a dojo of the same name that was built by his father, a physician, who wanted to improve both physical and spiritual health. The Yoshinkan style is currently the second largest aikido organization worldwide.
Style
As a style of aikido, Yoshinkan is more akin to the pre-war aikibudo techniques taught by Morihei Ueshiba, and therefore also generally closer to aikijujutsu than those styles of aikido developed after the war. The unusual emphasis placed on correct form prior to practicing correct flow and timing further contributes to its image as a "hard" style.
Gozo Shioda created a structured method in which beginning students would learn the foundation techniques. Techniques are performed by a pair of students called uke (受け, the partner on whom the technique is performed) and shite (仕手, the partner who performs the technique). They are categorized by elements such as the initiating attack, the applicable control and whether it is a pin or throw. They are further divided into two groups called ichi (first) and ni (second) techniques. Ichi techniques have a feeling of the energy moving towards uke, while ni techniques have a feeling of energy moving towards shite. For example, in an ichi technique, shite would move in the same direction as a pull by uke, while in a ni technique, shite would divert or pivot away from a push by uke.