Itsutsu-no-kata: the kata of the five principles of the natural forces.

This kata consists of five techniques, only known by there number, developed by Jigoro Kano and is considered unfinished. The techniques are composed of gentle movements evocative of natural forces.

The first two techniques originate from a Kata of the Kito Ryu. The following five principles are distinguished:

• Oshikaeshi: Concentration of power/energy
• Eige: No resistance (Ju)
• Tomowakare: Centrifugal and centripetal force
• Roin: Law of the pendula
• Settsuka no wakare: Law of inertia