著者

鍋山 隆弘 碓氷 典諒 奥村 基生

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.53, no.2, pp.55-71, 2021-03-31 (Released:2021-04-28)

参考文献数

17

---

This study investigates how spatiotemporal conditions of interpersonal distance and timing in movement initiations influenced decision-making and actions for offence and defense in kendo. We also intend to present verifiable data on the problem of how two players separate from tsubazeriai in matches. Participants were top level players in Japanese university kendo clubs. In the experiment, participants were either given the role of “the first player”, who initiates movements, or “the second player”, who initiates movements after the first. The participants performed each trial as if in a real match from distances of 150, 175, 200, 225, 250, and 275 cm. We analyzed two trends in their decision-making and actions, one of which was the “ease of active striking,” meaning that they were able to initiate movements from a strike rather than defense in each trial. The other trend was the “ease of striking”, meaning participants could strike in each trial and were not only confined to defense. The results showed that it was easier for the first players than the second players with regards to “ease of active striking” and “ease of striking”. In both results, the differences between the first and the second players were extremely clear at a distance of 150 cm and were very clear at 175 to 250 cm distances and almost disappeared at 275 cm. In total, the first players also had a greater frequency of striking success (ippon) than the second players. These results indicated that movement initiation distance and timing changed reaction and movement times in both offence and defense, and also changed the degree to which the first and the second players’ decision-making and actions gave them an advantage. This is because the reaction and movement times required for offence and defense became shorter if the two players were closer to each other. In addition, the first players’ active movements caused the second players to react passively making it easier for the first players to initiate an attack.. Therefore, at close distances, offence became easier while defense became more difficult, and the first players gained a advantage while the second players were placed at a disadvantage. It can be concluded that the first players gain an advantage and the second players become disadvantaged in terms of offence when they are at close distances of 150 to 250 cm. These findings should be useful in combat sports such as kendo for the coaching of decision-making and actions, as well as for making the rules fairer on offense and defense.

著者

五賀 友継

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.53, no.2, pp.147-151, 2021-03-31 (Released:2021-04-28)

著者

本田 千里 天野 聡 大塚 真由美 松本 秀夫 吉村 哲夫 網代 忠宏 生沼 芳弘

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.39, no.Supplement, pp.69, 2006 (Released:2012-11-27)

著者

山田 奨治

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.34, no.Supplement, pp.19, 2001 (Released:2012-11-27)

著者

曽我部 晋哉

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.48, no.1, pp.29-33, 2015-09-04 (Released:2016-09-04)

参考文献数

5

著者

酒井 利信

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.3, pp.9-20, 2003-03-31 (Released:2012-11-27)

参考文献数

57

---

This study attempts to clarify the concepts of the sword in Shintou Sect doctrine by examining the book, named “Heiho jikansho” written by Mr. Sekihei Otsuki.The important part to note regarding this book is firstly the enormity and quality of core techniques that were described in writing and consigned to posterity, even though secrecy was prerequisite in the world of modern swordplay.Secondly, I viewpoints on sword concepts in terms of swordsmanship have been summarized in this book. Furthermore, this book not only explains sword techniques, but also our country's attitude towards swords, that have been established since ancient times, are narrated as a whole, not partially. Thirdly, the content of magical acts involving swordsmanship is recorded, which represents the uniqueness of this historical document. The largest discovery in concluding this research is that the artistry of magical acts has been maintained and conveyed in modern swordsmanship.As for the content of Shintou Sect artistry of the magical acts, the following was revealed:1) In the Shintou Sect, the magical act for exorcism was performed using a sword (s). The sword used for the artistry was considered to be the same as that of “Futsuno-Mitamano Tsurugi.” When an exorcism was performed with this sword, the relationship with a god named Takemikazuchi was an important element, which has been shown in our ancient mythology.2) This magical act of exorcism was performed in two directions, namely against an enemy one was actually confronting and against an enemy within oneself.3) The magical act of exorcism using a sword (s) consisted of two elements, which involved both physical movement and linguistic action.

著者

井上 哲朗 山本 利春 蒔田 実 井島 章 岩切 公治 山本 正嘉

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.27-34, 1994-08-31 (Released:2012-11-27)

参考文献数

15

被引用文献数

1

---

Isokinetic muscle strengths of kendo players were observed at fifteen male kendo players. The subjects were grouped into higher competitive ability (H-Group; 7 persons) and non-higher competitive ability players (NH-Group; 8 persons). Isokinetic muscle strengths at various speed were measured at elbow, trunk and knee by Isokinetic dynamometers. The results were as follows: 1) There were not significant differences in physique and body composition between two groups.2) Elbow extension force (absolute value) of H-group was significantly larger than NH-group.3) There were not significant differences in knee extension and flexion forces between two groups.4) Trunk extension force (back strength) of H-group was larger than NH-group.5) Circumferences of right upper arm, forearm and thigh were significantly larger than that of left ones, but the value of left calf was significantly larger than that of right one.6) Elbow extension force of right arm was significantly larger than that of left one, but for elbow flexion force the value of left arm was significatly larger than that of right one.

著者

鹿島 則良

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.46, no.3, pp.119-126, 2014-03-31 (Released:2015-10-23)

著者

菊本 智之

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.41, no.Supplement, pp.9, 2008 (Released:2012-11-27)

著者

山神 眞一 百鬼 史訓

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.22, no.3, pp.38-45, 1990-03-31 (Released:2012-11-27)

参考文献数

18

被引用文献数

2

---

Fuminori NAKIRI(Tokyo University of Agriculture and Technology)The purpose of this study was to analyze the shoulder and waist in torsion on the Shomen-uchi movement in Kendo at two types of distance. The shomen-uchi movement was filmed at 100 f. p.s with two 16mm high speed cameras. Three-dimensional coordinates for the segment endpoints were computed by using a direct linear transformation technique. The subjects for this study were 5 males,19 to 20 years of age, with 7 to 10 years of experience and 3 dan degree.The results were summarized as follows: 1) On the long distance, the changes in the shoulder and waist angles seem to be larger, and the amplitude in the shoulder and waist angle in torsion also seem to be larger.2) There were two types of movements in the shoulder and waist angle in torsion on the shomen-uchi movement.A type: In the phase of the maximum point of raising the shinai, there was a cross motion between the shoulder and the waist.B type: During the shomen-uchi movement, no cross motion occurred between the shoulder and the waist.

著者

酒井 利信

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.40, no.Supplement, pp.5, 2007 (Released:2012-11-27)

著者

三宅 聡史 加賀 勝

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.36, no.2, pp.51-58, 2003-11-30 (Released:2012-11-27)

参考文献数

10

被引用文献数

2

---

The purpose of this study was to determine characteristic of the “men” striking motion performed by top kendo athletes by comparing to lower level collegiate kendo athletes.It became clear as a result of analyzing the data that men striking motion is divided into two phases: Back-swing (first phase) and Forward-swing (second phase).1. Top kendo athletes extended both shoulders and wrists, and maintained the angle of the body bending forward more than collegiate athletes.2. There was no difference in the Shinai velocity or horizontal velocity of the center of gravity of the body between top kendo athletes and collegiate athletes.3. Flexion velocity of the left wrist in the first phase and extension velocity of the right wrist and both shoulders in the second phase of top kendo players were faster than collegiate kendo athletes.4. In the first phase, top kendo athletes raised both wrists more rapidly than collegiate athletes, after the left wrist moved to the bottom.5. Collegiate athletes moved the wrist to the top and the right wrist moved forward at the last stage of the second phase.6. Top kendo athletes extended the left shoulder more than collegiate athletes in the second phase.7. Horizontal velocity of the right ankle of collegiate athletes decreased in the last stage to the first phase.

著者

平田 佳弘 植原 吉朗 香田 郡秀 今井 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.22, no.2, pp.41-42, 1989-11-30 (Released:2012-11-27)

被引用文献数

1

著者

岡田 弘隆 青柳 領 中村 勇 南條 充寿 林 弘典

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.33, no.1, pp.31-39, 2000-09-30 (Released:2012-11-27)

参考文献数

26

被引用文献数

2

---

The purpose of this study was to investigate the difference of actual situations and consciousness between Japanese and Frence Judo participants in order to clarify the cause of decining Japanese Judo participants A questionnaire containing ten items about popularezing Judo was conducted on two hundred and fourteen Japanese and one haundred and fifty-seven Frence Judo participants. Analyzing the data statistically, the following results were obtained:1. French Judo participants began Judo with more positive motivation, at an earlier age and had a better image about Judo than Japanese.2. French Judo participants were taught with various better ideas and enjoyed Judo practice more than Japanese.3. French Judo participants practiced Judo fiwer time and played more kinds of sports than japanese.4. French Judo participants knew their Judo Federation and its activity better than Japanese.5. French Judo participants wanted to be involved with Judo for longer and make theie own children play Judo more than Japanese. In addition, the relationship among obtained factors that contribute to popularize Judo, were investigated with an arrow diagram.

著者

三橋 秀三

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.7, no.1, pp.41-43, 1974-11-30 (Released:2012-11-27)

著者

有川 一 吉田 貫司 久保 あゆみ 坂本 太一 渡邉 孝士郎 今井 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.53, no.1, pp.1-9, 2020 (Released:2020-09-19)

参考文献数

24

---

Research suggests that psychological stress due to competing against opponents of different skill levels affects exercise intensity during kendo gokaku-geiko. However, few studies have clarified the relationship between psychological stress measured using objective indices and exercise intensity. In this study, we measured psychological stress, exercise intensity, and physical activity in players during kendo gokaku-geiko with opponents of different skill levels using objective, non-invasive, simple measures.Six male members of the university kendo team participated in this study. They performed kendo gokaku-geiko for 3 minutes with highly skilled, equivalently skilled, and non-highly skilled opponents. We measured psychological stress indices (salivary amylase activity and autonomic balance [LF/HF]), exercise intensity indices (heart rate [HR], peripheral oxygen saturation [SpO2], rate of perceived exertion [RPE]), and physical activity indices (number of steps and strikes) during keiko.We observed an increasing tendency of salivary amylase activity, HR, RPE, and physical activity indices during keiko with highly, but not with non-highly, skilled opponents. On the other hand, we detected an increasing tendency of LF/HF with both types of opponents.These results suggest that in keiko with highly skilled opponents, the participants experienced tension (i.e. a “fight-or-flight response”) caused by strong pressure and attacks from their opponents; thus, they increased their physical activity and exercise intensity and were likely to experience high stress. On the other hand, in keiko with non-highly skilled opponents, the participants experienced low stress due to a lack of exercise intensity and low physical activity.

著者

豊嶋 建広 井上 一男

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.18, no.2, pp.71-72, 1985-11-30 (Released:2012-11-27)

参考文献数

2

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.51, no.1, pp.63-68, 2018-08-31 (Released:2019-08-31)

著者

吉田 昭久 尾形 敬史

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.20, no.2, pp.99-100, 1987-11-30 (Released:2012-11-27)

著者

中川 裕恵

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.31, no.Supplement, pp.26, 1998 (Released:2012-11-27)