Kendō: equipment, practice and a valid strike

A shinai consists of four split bamboo pieces; an approved substitute material is also permitted under the rules. Men protects the head and face, kote the hands and wrists, dō the trunk and tare the waist area. Kendō clothing includes a jacket and hakama. Not every protected area is a scoring target.

Conditions for a valid strike

A valid strike uses the prescribed part of the shinai with correct edge alignment, posture, spirit and zanshin. Zanshin involves remaining alert and ready after the strike. The targets are specified areas of the men, kote and dō, and the throat protector for thrusts, subject to the rules for each target.

Striking area and zanshin

The string running along the shinai marks its back; the opposite side represents the cutting edge. The monouchi is the section towards the tip, between the nakayui binding and the tip. A touch with the shaft near the hands therefore fails the striking-part requirement, even if it reaches a permitted target. A teaching guide prepared by the All Japan Kendo Federation illustrates a straight men strike by first checking where the monouchi meets the head protector, then adding the forward step, straight swing and call. After passing the partner, the practitioners turn to face one another, remaining ready. Zanshin extends the action beyond the moment of contact.

Shinai practice, paired wooden-sword kata and footwork are different parts of training. In a standard three-point match, the first competitor to score twice wins; a single-point lead also wins when time expires. Other match formats exist. Grade examinations assess proficiency rather than tournament ranking.

Sword schools and military treatises

Modern kendō grew out of earlier, distinct sword traditions. Schools including Shinkage-ryū and Ittō-ryū emerged during the later medieval and Warring States periods. Early Edo works such as Heihō Kadensho (1632) and The Book of Five Rings (1645) set out technical and mental approaches. These traditions supplied precedents without constituting a single sport under today’s rules.

Shinai practice and modern institutions

The All Japan Kendo Federation identifies early eighteenth-century developments associated with Naganuma and later Nakanishi practice as important equipment stages. Post-Restoration decline and police revival preceded institutions including the 1895 Dai Nippon Butoku Kai and the 1912 kata. These changes helped shape modern practice. In 1919, Hiromichi Nishikubo advocated the name kendō in place of terms such as kenjutsu and gekiken, emphasising cultivation through practice.

Wartime kendō became tied to militarised education, and restrictions after 1945 interrupted established practice. The All Japan Shinai Kyōgi Federation, formed in 1950, promoted a modified sport with softer covered shinai, shirts and trousers, and timed cumulative scoring. It was more than a new name for unchanged kendō. The All Japan Kendo Federation formed in 1952 and absorbed the shinai-kyōgi federation in 1954; the school practices were integrated in 1957. The international federation and first world championship followed in 1970.