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Arizona Hombu Dojo

School of Traditional Okinawan Karate, Kobudo, Self-Defense & Samurai Arts

Bojutsu - Martial Art of Tenbinbo

At the Arizona Hombu Karate dojo - not only do we train with rokubo (a 6-foot staff), we also train with hanbo (3-foot), jo (4-foot), kuboton (hand stick), nitanbo (two sticks), eku (oar), bokken (wooden sword) & konabo (club). 

Left photo shows two of our outstanding students: Amira and Suzette, training with bo.












The rokubo is used in a martial art known as bojutsu (棒術) one of many peasant weapons' arts of Okinawan Kobudo (古武道). Of all of the kobudo weapons in the Shorin-Ryu arsenal, few seem more traditional than bo. Bojutsu is part of all Shorin-Ryu styles with the exception of Shotokan. For some reason, Okinawan bojutsu was eliminated from Japanese Shotokan in the 20th century.

Historically, bo was, and still is, a farming tool known as a tenbin or tenbinbo.  The tenbin is a pole placed across the shoulders of Asian farmers to transport equal weights of buckets or sacks at either end. Most tenbin are made from bamboo: the length of bo varied. The unit of measure, known as shaku (尺), is the Japanese foot and is 0.994 feet in length. In times past, longer shaku were used in Japan that are known as korai shaku (1.167 feet). The majority of bo in Shorin-Ryu are roku shaku, or about 6 feet in length.

Prior to 1961, shaku was a common unit of Japanese measurement. The unit was derived from nature and equivalent to the average length between mature bamboo nodes. But, there are >1,000 species of bamboo; each grows to different heights, diameters and lengths between nodes. Bamboo includes small annuals to giant perennial timber bamboo. It is the fastest growing woody grass plant on earth and known to grow 3 to 4 feet per day. The different species of bamboo vary from a few to 120 feet tall and have diameters as great as 12 inches (now that would produce one heck of a bo). Bamboo has been around for some time and there are even species of bamboo preserved in the fossil record 30 to 40 million years ago. The Japanese kanji is the ideograph "竹" which represents two twigs of bamboo with leaves. 

The length of many ancient bo included hasshaku (7.96 feet) or hasshaku gosun (8.45 feet). Modern martial arts supply houses sell rokushaku-bo that are 6 shaku long. Confusion arises from another archaic unit that was also referred to as shaku. This third shaku was 14.9 inches, or the length of an average whale whisker (we had no idea whales had whiskers). Anyway, it was adopted by law in Japan in 1881 for measuring cloth. To distinguish between the two shaku, the cloth shaku was referred to as kujirajaka (kujira meaning whale) while the bamboo shaku was referred to as kanejaku.

Okinawan karate practitioners all train with bo. Bo is also a Japanese samurai weaponA bo could out-reach a katana (samurai sword). Unlike most Okinawan bo techniques which grasp the bo by splitting the pole into thirds, Japanese samurai grasped the bo near one end to achieve maximum reach. Many techniques that apply to samurai bo also apply to yari and naginataWhen it comes to the shape of bo, most are familiar with maru-bo, or round staff. But there are kaku-bo (four-sided), rokkaku-bo (six-sided) and hakkaku-bo (eight-sided). There is even an archaic bo known as the konabo (also konsaibo and tetsubo) which looked more like a caveman’s version of a club studded with iron.

The bo kata of Seiyo Shorin-Ryu include Kihon Bo, Sho No Kun, Sho Ken No Kun, Suuji No Kun, Choun No Kun Dai, Choun No Kun ShoBojutsu ShodanBojutsu NidanBojutsu Sandan. Note Okinawan bo is referred to as kon or kun on Okinawa. 

See our kama page, 
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