Nihon Kendo Kata was created by integrating many kata (forms) from different kenjutsu schools in 1912. The purpose of this action was to keep the traditional kenjutsu forms in kendo to remember where kendo came from.
Kata consists of 7 kata with tachi
(long sword) and 3 kata with kodachi
The requirements in the training are:
correct posture, cuts with the correct part of the shinai (bamboo practice sword)
to specific targets, fast movement of the feet and ‘kiai’ with each cut.
Kiai is the intense explosive ‘attacking’ sound made at the opponent when the cut is delivered.