Bojutsu involves the use of a six-foot staff that combines Obata-soshihan's original techniques with traditional Japanese techniques and Ryukyu Kobudo methods. Bojutsu requires extensive twisting of the body, so one develops softer and more flexible shoulder and hip movements that are useful for aikido shinkendo, and other budo. Bojutsu also involves kamae, attacks, blocks, solo kata, and paired kumite, and serves as an important basic foundation for other weaponry styles, such as the naginata and yari, which are longer polearm weapons historically.
(excerpted from http://aikibujutsu.org/curriculum.html)