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Asuburitō (素振り刀) is a type ofbokken, a wooden practice sword originating in Japan and used in Japanese martial arts.Suburi (素振り; literally, "basic or plain swing") means "practice swing"; asuburitō is therefore used to practice sword-swinging.
The suburitō is much thicker at the blade than the handle which makes the suburitō much heavier than a normal bokken.[1] Suburitō are used for practicingsuburi (sword swinging exercises) andkata (prearranged exercises). The weight of the suburitō is used for strengthening and conditioning in addition to development of spirit. The suburitō is used to perfect individual technique as well.
Asuburitō is commonly around 115 cm (45 in) in length, with a mass of 1 kg (2.2 lb). However, these bokuto can vary widely in size and weight. Suburitō generally do not include a guard.
Legend has it thatMiyamoto Musashi carved abokken that resembled asuburitō out of a boatoar as he traveled to his famousduel withSasaki Kojiro, whom he supposedly killed.[2]
Atanren bō (鍛錬棒) is a bat used inaikido for strength andsuburi training. Despite being only 3 feet (0.91 m) overall, with 10 inches for the handle, the "blade" is a large lump of rectangular wood, with its cross-section being a square with dimension of three square inches, and has an overall weight of 4 to 7 lbs.
By designating one corner as edge, an aikidoka can use it as an even heavier suburitō, practice suburi,kata,hasuji (edge-angle) and tomei (swing stopping)[clarification needed], and learn the bounce-back of the sword by practising againsttenu-ichi, now typically a tyre stood upright on a concrete base.
As it is designed towards aikido and strength training, specifically for getting used to the weight of a heavy-handled object, it does not resemble a sword in shape, length, or mass. Thus, unlike suburito, it is less effective for learning the katana's cut, and is not suited for contact with other swords.
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