56 0 0 0 OA 剣道における片手打ちの打撃力に関する研究
- 著者
- 浅見 裕 横山 直也 百鬼 史訓 田中 幸夫 田中 秀幸 大矢 稔 山神 眞一
- 出版者
- 日本武道学会
- 雑誌
- 武道学研究 (ISSN:02879700)
- 巻号頁・発行日
- vol.27, no.1, pp.12-19, 1994-08-31 (Released:2012-11-27)
- 参考文献数
- 14
For the purpose of determining the technical characteristics of the Kendo strike with the Jodan-no-Kamae in Kendo, we measured the impact force of the one-hand Shomen-and Kote-uchi using as subjects five college Kendo club students. And analyzed the data by a motion analysis system with a video tape recorder. We also measured the impact force of the two-hand Chudan-no-Kamae strike for comparison. The following are the results obtained from a biomechanical examination of the data.1. The downward maximum magnitude of the impact force of the one-hand Kote-Uchi (150.03 ± 21.35kgf) was greater than that of the one-hand Shomen-Uchi (120.99 ± 11.55kgf). This difference was a characteristic of the one-hand strike but not of the two-hand strike.2. The angular motion at the left shoulder, from which the Shinai is brought down, was greater for the one-hand Kote-Uchi than for the one-hand Men-Uchi. This will explain why the vertical component force of the one-hand Kote-Uchi was greater than that of the one-hand Men-Uchi.3. With respect to the vertical movement of the Kensen, the maximum speed was greater for the one-hand Kote-Uchi than for the one-hand Men-Uchi while the opposite was the case with respect to the forward movement. This was in accord with the observation that the maximum magnitude of the impact force was greater for the one-hand Kote-Uchi than for the one-hand Men-Uchi with respect to the vertical movement whereas the opposite was the case with respect to the forward movement.4. The correlation coefficient between the impact time and the maximum magnitude of the impact force was small whereas the correlation coefficient between the impact time and the impulse value was great.5. There was not an appreciable difference in the magnitude of the impact force between the one-hand and two-hand Men-Uchi. However, with respect to the right Kote-Uchi, the maximum magnitude of the impact force was greater in every direction for the one-hand strike than for the two-hand strike. Most notably, with respect to the downward movement, the maximum magnitude of the impact force of the one-hand Kote-Uchi was greater than that of the two-hand Men-Uchi.
8 0 0 0 OA 剣道における二刀の構えからの打撃動作の研究―大刀・小刀による打撃力について―
- 著者
- 横山 直也 大矢 稔 百鬼 史訓 田中 秀幸 浅見 裕
- 出版者
- 日本武道学会
- 雑誌
- 武道学研究 (ISSN:02879700)
- 巻号頁・発行日
- vol.28, no.2, pp.26-36, 1995-11-30 (Released:2012-11-27)
- 参考文献数
- 28
For the purpose of determining the technical characteristics of the striking motion from Nito-no-Kamae in Kendo, we measured the impact force of the striking motion with DAITO (long-shinai) and SHOTO (short-shinai) using as subjects three male university teachers, who are majoring in Kendo, and analyzed the data by a motion analysis system with a video tape recorder.For comparison, similar measurements were performed on the striking motion with the two-handed striking motion from Chudan-no-Kamae and the one-handed striking motion from Jodan-no-Kamae.The following results were obtained from a examination of the data.1. The maximum downward magnitude of the impact force and the downward impulse value of three kinds of the striking motions with SHOTO from Nito-no-Kamae were greater than that of the two-handed Shomen striking motion from Chudan-no-Kamae. However, the maximum downward magnitude of the impact force and the downward impulse value of two-kinds of striking motion with DAITO from Nito-no-Kamae were smaller than that of two-handed Shomen striking motion from Chudan-no-Kamae.2. The impact time of all the striking motion from Nito-no-Kamae were shorter than that of the two-handed striking motion from Chudan-no-Kamae.3. The motion of shinai in the striking motions from Nito-no-Kamae were chiefly made using the left elbow and the left wrist.4. The angular velocity of shinai immediately before impact using Hikikote striking motion with SHOTO of Nito-no-Kamae was the largest, and that using the Shomen striking motion with DAITO of Nito-no-Kamae was the smallest.
3 0 0 0 OA 剣道における片手打ちの打撃力に関する研究
2 0 0 0 OA 日本剣道形の由来と解釈: 大日本帝国剣道形の草案・原案・成文の比較対照
- 著者
- 大矢 稔
- 出版者
- 日本武道学会
- 雑誌
- 武道学研究 (ISSN:02879700)
- 巻号頁・発行日
- vol.35, no.1, pp.35-52, 2002-07-31 (Released:2012-11-27)
- 参考文献数
- 31
The compilation of the Dainihonteikoku Kendo-Kata has undergone 3 stages of “Sketch-Draft-Codification. ” In this paper, the original texts of these stages are compared and scrutinized concerning when, what and how amendments were added, and furthermore tendencies in the nature of the amendments were discussed, as well as its implications.In the evolution from the sketch to the draft, it seems the chief investigators and the investigators had question-and-answer sessions and exchanged views, and then, based on the results the chief investigators, re-examined the sketch to make amendments.For the purpose of organizing a unified Teikoku-Kendo-Kata transcending schools, organizing work is thought to have been encouraged by placing special emphasis on the basic concept, overall picture and comprehensive constitution of the Teikoku-Kendo-Kata. In addition, because it was governed by the chief investigators' mastery of the art of kendo, theory on techniques, and profound perception of the Teikoku-Kendo-Kata, the details of the sketch were not regarded as matters of particular importance. Consequently, in the work from the sketch to the draft, the Kodachi-Kata was settled on as not to be amended, and a total of 17 items, including 2 of the basic,5 of Tachiai and 10 of Tachi-Kata, as items to be amended.From the draft to the codification, through the deliberations of the Teikoku-Kendo-Kata Investigation Committee,6 amendments were adopted at first. Afterwards, as a result of the chief investigators' and the investigators' practicing the Teikoku-Kendo-Kata, minor differences became regarded as problems and amendments were added owing to the necessity of having more precise explanation for the sake of instruction. Finally, in the process of progression from the draft to codification, amendments were added for the first time to the Kodachi-Kata, and a total of 27 amendment items, containing 4 of the basic,4 of Tachiai,12 of Tachi-Kata and 7 of Kodachi-Kata items plus 6 items by the Teikoku-Kendo-Kata Investigation Committee's decisions, were added before release of the codification by the management office of the Butoku-Kai.
- 著者
- 大矢 稔
- 出版者
- 日本武道学会
- 雑誌
- 武道学研究 (ISSN:02879700)
- 巻号頁・発行日
- vol.37, no.2, pp.1-14, 2004-11-30 (Released:2012-11-27)
- 参考文献数
- 71
- 被引用文献数
- 1
A portion of the supplementary description of “Fourth Kata for Tachi” leading up to the AI-CHUDAN form (both protagonists with swords raised to middle level posture) of Kendo Kata, Japan found in “Kendo Training Course Documents” has been deleted. The phrase “move forward in three relatively small steps” affects the subsequent content of the Kata in terms of rationale relating to distance maintained between protagonists. In other words, the deletion presents not only a problem relating to overall textual expression, but a far greater problem relating to the resulting omission of an essential element of the Fourth Kata.In this regard, using as many instructional texts relating to Japanese Kendo Kata as possible as reference material, I present below an evaluation of the deleted segment, insofar as it influences the Fourth Kata.The concept of sword-to-sword contact (KIRI-MUSUBI) in the form of a simultaneous attack by both protagonists (AI-UCHI) is the result of “the concept, promulgated in traditional sword techniques, of a frontal, vertical cut executed simultaneously by both protagonists derived from recombination of sword-to-sword contact techniques arising from either a descending, diagonal cut executed from the HASSO posture (with the sword held at the side of the head) or an upward diagonal cut from the WAKI-GAMAE (with the sword held low to the side) to produce sword-to-sword contact (KIRI-MUSUBI) in the form of a simultaneous, direct, vertical, frontal attack made by employing a large, expansive cutting motion with both protagonists engaging in fierce combat with an equal degree of confidence.”Considering the characteristics of posture together with footwork, the three steps forward must inevitably be relatively small to produce a wide gap between the protagonists. In addition to this, taking into overall consideration the fact that the technique employs a large, expansive cutting motion, the original form of sword-to-sword contact and vertical frontal cut, the footwork and distance traversed in a simultaneous attack by both protagonists (AI-UCHI), the retreating steps of the attacker (UCHIDACHI) in a situation with both protagonists in the AI-CHUDAN posture (both protagonists with swords raised to middle level posture) and safety considerations, it is clear that, since great care must be taken in establishing on appropriate distance between the protagonists, the three advancing steps must be relatively small to ensure a wide intervening gap.The deletion from the supplementary description in “Kendo Training Course Documents” is not merely a textual style related revision. That is to say, deletion of the elements “advancing in three small steps,” “making a frontal, vertical attack from a distance employing a large, expansive technique, ” and “using sword-to-sword contact (KIRI-MUSUBI) in the form of cuts executed by both protagonists simultaneously” not only clouds the rationale relating to distance maintained between protagonists but also in effect impedes transmission of Nippon Kendo Kata in correct form. The above illustrates that supplementary descriptions should be “advance in three relatively small steps, step in on the right foot and make a direct, frontal attack using a large, expansive cutting movement thereby producing simultaneous sword-to-sword contact.”
1 0 0 0 OA 大日本帝国剣道形「加註の原案」の分析的考察
- 著者
- 大矢 稔
- 出版者
- 日本武道学会
- 雑誌
- 武道学研究 (ISSN:02879700)
- 巻号頁・発行日
- vol.38, no.Supplement, pp.55-55, 2005 (Released:2012-11-27)
