著者

籔根 敏和 野原 弘嗣 上村 守 岡田 修一 山崎 俊輔 細川 伸二

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.23, no.2, pp.17-18, 1990-11-30 (Released:2012-11-27)

参考文献数

3

著者

藤田 英二 濱田 初幸 中村 勇 小山田 和行 野口 博之 松崎 守利 森﨑 由理江 安河内 春彦

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.50, no.3, pp.159-164, 2018

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This study used a dual-energy X-ray absorptiometry (DXA) method to investigate how body weight relates to fat-free mass index (FFMI) and fat mass index (FMI) in male college judo players. The whole-body fat-free mass and fat mass of 59 male college judo players were measured to the nearest 0.1 g using a DXA method. The fat-free mass and fat mass thus obtained were each divided by the square of the height (m) to give the FFMI and FMI, respectively. The percentage of body mass index (BMI) accounted for by FFMI and by FMI (%) was then calculated. The relationship between body weight and the percentage of BMI accounted for by FFMI and by FMI (%) can be interpreted as two straight lines with a break point. The break point can be determined by a regression analysis of these two straight lines using the plots of the percentage of BMI accounted for by FFMI and by FMI (%) by the least squares method. Using this method, the break point of two straight lines was obtained with the minimum square sum of the residual. The results showed the break point of the plots of percentage of BMI accounted for by FFMI and by FMI against body weight was 87.6 kg for both FFMI and FMI, and that as body weight increased, the proportion of FFMI in BMI decreased and the proportion of FMI in BMI increased. This break point indicates that the limit up to which it is possible to increase weight without worsening the body composition in male college judo players is around 90 kg, and any weight gain above this will depend on an increase in fat more than an increase in muscle.

著者

中林 信二

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.16, no.1, pp.68-69, 1984-01-31 (Released:2012-11-27)

著者

入江 康平

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.5, no.1, pp.9, 1972-10-30 (Released:2012-11-27)

被引用文献数

1

著者

藤田 英二 中村 勇 濱田 初幸 安河内 春彦

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.42, no.2, pp.2_11-2_17, 2009

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&nbsp;&nbsp;ジュニア期の選手達の身体的形態や運動能力は,個々の生物学的な成熟度と関連して把握することが求められる。生物学的な成熟度を知る物差しとして,骨年齢の測定は最も信頼されている手法である。特に柔道において技術レベルが同じである場合には,体が大きく力が強い選手が有利であるため,タレント発掘と育成には骨年齢を測定し,生物学的な成熟度を把握する意義は大きい。しかし,従来の骨年齢評価にはX線画像が必要であったため,すべてのタレント候補達に実施することは困難であった。そこで,近年開発された超音波式骨年齢測定装置を用いてF県柔道協会による強化育成事業の「F柔道クラブ」に所属する小学生柔道選手48名を対象に,形態および体力測定と超音波式骨年齢測定装置を用いた骨年齢評価を実施した。<BR>&nbsp;&nbsp;結果,ローレル指数において半数近くが「太りぎみ」以上の判定をうけ,肥満傾向にあった。ローレル指数は体重よりも体脂肪率と高い相関関係を示しており,今後の身体特性の管理に有効な指標であると思われた。骨年齢はほぼ全員が暦年齢よりも促進しており,早熟傾向を示した。強化選手と育成選手との間には骨年齢の差は認められなかった。骨年齢は女子において背筋力と垂直跳び跳躍高に相関関係が認められた。<BR>骨年齢測定は,個々の能力や身体的特徴を的確に捉えることができ,発育発達に応じたトレーニング処方に重要であると考えられた。

著者

村松 常司 高橋 邦郎 竹内 外夫 長谷川 優

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.19, no.1, pp.59-68, 1986-07-31 (Released:2012-11-27)

参考文献数

19

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A quentionnaire survey was conducted to clear the smoking habits among male university athletes. 425 male students aged 18-23 responded to the questions of their smoking habits, daily dietary life and sleeping anonymously. The differences of smoking habits among athletes are analyzed in this report.The results are as follows;.1) Among the male university athletes,45.2% have smoking habits..2) The percentages of the smokers among Kendoists, Ruggers and Gymnasts are high (82.7%,73.4%,61.9%, respectively), and those among Soccer players, Judoists and Swimmers are low (8.1%,11.5%,18.2%, respectively)..3) There is a remarkable difference of daily diet and sleep between the smokers and the nonsmokers. The Nonsmokers have more desirable diet and enough sleep, and also, there is a remarkable difference between events of athlete..4) Volleyballers, Track and Field athletes and Swimmers obtain higher scores of Dietary Index more than players of other events.

著者

根上 優 金本 賢治

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.20, no.2, pp.107-108, 1987-11-30 (Released:2012-11-27)

参考文献数

9

著者

今村 嘉雄

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.9, no.1, pp.1-9, 1976-07-31 (Released:2012-11-27)

著者

数馬 広二

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.3, pp.23-39, 1996-03-31 (Released:2012-11-27)

参考文献数

73

被引用文献数

2

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Zensin-Mukei-Ryu Kenjutsu School (literally Zen Meditation-Intangible swardsmanship School)was founded by Shichirozaemon Minamoto-no Takesato Tajima (Takesato Tajima). a headman of Ogose Village (presently Ogose Town, Saitama Prefecture), influenced by Ohyama-Shinko (a Kind of mountainous folk belief) in AD 1800. The School had been prospering until 1830.This study aimed at clarifying the plan made by the disseminators (mentors) of Ohyama belief who took advantage of Zensin-Mukei Ryu.The results are summarized as follows:1. In the middle of the Edo Period, many farmers of middle or upper class in the Bushu District (presently Saitama Pref. and its vicinity) wanted to practice Kogen-Itto-Ryo Kenjutsu School that had been established in the same district. Then, Takesato Tajima, one of the studens of Kogen-Itto-Ryu. founded another new school, Zensin-Mukei-Ryu in 1800, a branch split from Kogen-Itto-Ryu. It (Zensin-Mukei-Ryu) spread in Ogose Village and its vicinity.2. Takesato Tajima and his 114 students dedicated a tablet to Kasuga Shrine of Ogose Village, on which the names of the members of Zensin-Mukei-Ryu were writen. On the Tablet we can also find the names of 21 disseminators of Ohyama belief in the Soshu District (presently Kanagawa Pref. and its vicinity), mixed with those of other students in the neighborhood.3. Mt. Ohyama in Isehara City, Kanagawa Prefecture, is located 1252 meters above sea level. The faith in Mt. Ohyama was born in ancient days when farmers and fishermen in the Kanto District prayed for rain and good harvest. The disseminators of Ohyama had been propagating their belief around the kanto District for acquiring their followers. They organized “Ohyama-Ko”, a pilgrim association of having the same faith. They climbed together Mt. Ohyama and made a monetary contribution to Ohyama Shrine.4. Then there had been several “Ohyama-Ko” around the Ogose Village. Takesato Tajima and his students also had faith in Mt. Ohyama. They had made a pilgrimage to Mt. Ohyama, and stayed with Sato Ohsumi, one of the disseminators, who was also one of the students of Takesato Tajima.5. The disseminators of Mt. Ohyama had come to resort to force for protecting themselves from enemies whom they came across while spreading their belief. Before AD 1800, they had been the students of Kogen-Itto-Ryu. After 1800, however, they were converted to Zensin-Mukei-Ryu. This shows how the disseminators came to be affiliated with Zensin-Mukei-Ryu.6. In short, the disseminators conceived that being the students of Takesato Tajima would help them to increase the number of their believers. On the other hand, Takesato Tajima, saw to it that he could take advantage of Mt. Ohyama's religious influence in order to expand Zensin-Mukei-Ryu. Thus, Zensin-Mukei-Ryu was established to promote mutual benefit with the disseminators of Ohyama belief.

著者

藤田 英二 濱田 初幸 中村 勇 小山田 和行 野口 博之 松崎 守利 森﨑 由理江 安河内 春彦

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.50, no.3, pp.159-164, 2018 (Released:2019-03-31)

参考文献数

19

被引用文献数

3

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This study used a dual-energy X-ray absorptiometry (DXA) method to investigate how body weight relates to fat-free mass index (FFMI) and fat mass index (FMI) in male college judo players. The whole-body fat-free mass and fat mass of 59 male college judo players were measured to the nearest 0.1 g using a DXA method. The fat-free mass and fat mass thus obtained were each divided by the square of the height (m) to give the FFMI and FMI, respectively. The percentage of body mass index (BMI) accounted for by FFMI and by FMI (%) was then calculated. The relationship between body weight and the percentage of BMI accounted for by FFMI and by FMI (%) can be interpreted as two straight lines with a break point. The break point can be determined by a regression analysis of these two straight lines using the plots of the percentage of BMI accounted for by FFMI and by FMI (%) by the least squares method. Using this method, the break point of two straight lines was obtained with the minimum square sum of the residual. The results showed the break point of the plots of percentage of BMI accounted for by FFMI and by FMI against body weight was 87.6 kg for both FFMI and FMI, and that as body weight increased, the proportion of FFMI in BMI decreased and the proportion of FMI in BMI increased. This break point indicates that the limit up to which it is possible to increase weight without worsening the body composition in male college judo players is around 90 kg, and any weight gain above this will depend on an increase in fat more than an increase in muscle.

著者

榊田 八重子

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.9, no.2, pp.84-85, 1976-11-30 (Released:2012-11-27)

著者

佐伯 弘治

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.39, no.3, pp.35-41, 2007

著者

松尾 牧則 入江 康平

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.21, no.2, pp.65-66, 1988-11-30 (Released:2012-11-27)

参考文献数

7

著者

佐伯 弘治

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.39, no.3, pp.35-41, 2007-03-31 (Released:2012-11-27)

著者

百鬼 史訓 斉藤 和男 高橋 彬 黒川 隆志

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.9, no.3, pp.29-37, 1977-03-31 (Released:2012-11-27)

参考文献数

28

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The purpose of this study is to clarify the morphological features and characteristics of the standing posture of the Kendomen in comparison with the Judomen and non-athletes.We studied on the changes of the relief of the back during various standing posture with the aid of moire contourography. And also, we studied on the vertebral column by the conformateur and the perpendicular line of the body gravity center by the gravianalyzer.The subjects for this study were thirty four Kendomen, twenty six Judomen and twelve non-athletes, students of Tsukuba University, aged 18-20 years.The results were as follows:1) In the girth of the upper limb and the forearm of the Kendomen, a striking contrast between right and left was observed.2) The right shoulder of the back of the Kendomen had a tendency to be in the front and downward.3) The moire contourography of the back of the Kendomen, Uudomen and non-athletes were taken and the characteristics of the relief of their back were examined.4) Of the vertebral angles of the Kendomen,. the angle A (inclination of cervical lumbar line) in the relaxed posture took a negative value, and this tendency was more conspicuous in good and military posture.5) In the position of the body gravity center,. little difference was found between the Kendomen and the non-athletes.6) A few students both in the Kendomen and non-anthletes had the perpendicular line of the body gravity center laid upon the aulicular line. In the good or military posture, the incidence of the overlie of two lines became more frequent.

著者

工藤 龍太

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.3, pp.121-134, 2016-03-31 (Released:2018-03-12)

参考文献数

25

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Kanō Jigorō diligently studied “atemi-waza” (striking techniques). When he watched aikido founder Ueshiba Morihei’s martial arts demonstration in 1930, he praised that performance as the ideal of the martial arts. This study aims to analyze 689 of Ueshiba’s counter techniques against atemi-waza, as detailed in the martial arts notebooks Ken and Kon, written by the Japanese Imperial Navy Admiral Takeshita Isamu, Ueshiba’s pupil and patron in 1930, with reference to the explanations of Kanō Jigorō’s pursuit of judo as a martial art. The author will consider the similarities between Kanō’s ideal judo as a martial art and Ueshiba’s techniques. The main points are as follows:(1) From the beginning of the Kōdōkan, Kanō had taken measures to cope with atemi-waza, but he could not adopt the techniques into the randori system because of the risk of injury. Instead, he adopted atemi-waza into kata, although practitioners continued to emphasize randori despite Kanō’s repeated warnings. Kanō feared the practitioners’ bad posture. Kanō believed that an essential element in judo as a martial art was to dodge the opponent’s unpredictable atemi attacks by using nimble body movements. He therefore stressed the importance of a natural posture. Kanō thought that a natural posture was ideal because it could flexibly respond to any atemi attack.(2) The opponent’s atemi-waza in the 689 techniques highlighted by Takeshita included both short- and long-distance attacks. These techniques made the opponents’ atemi attacks, which included chops, punches, and kicks, ineffective through the use of nimble body movements and the skillful use of the hands in situations where the practitioner was either standing or sitting. Based on a natural posture and these defensive techniques, Ueshiba used dangerous atemi-waza or skilled throwing techniques that were influenced by Daitō-ryū Aiki-jūjutsu. It becomes clear that one of the features of Ueshiba’s skills, as praised as an ideal martial art by Kanō, was to cope with the opponent’s atemi attacks by using a natural posture and nimble body movements, both of which were essential elements in judo as a martial art according to Kanō.

著者

金本 賢治 根上 優

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.105-106, 1987-11-30 (Released:2012-11-27)

参考文献数

12

被引用文献数

1

著者

和田 哲也

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.23, no.1, pp.45-55, 1990-07-31 (Released:2012-11-27)

参考文献数

57

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In the latter period of Edo era, “shinai-uchikomi-geiko”, the new training method in which swordsmen wearing protectors strike and thrust each other unrestrainedly by means of bamboo swords, became popular and spread in place of the traditional method by means of kata of the school in Kenj utsu. With the propagation of the new method, “taryu jiai”, a match between swordsmen of different schools, which had been put under the taboo, got activated all over the country. There are, however, few detailed investigations into the process except for the Kanto area.The present study was undertaken to make clear how “shinai-uchikomi-geiko” propagated and “taryujiai”got activated in the Iwakuni clan.Major findings are as follows;(1) The trend in kenjutsu, the propagation of “shinai-uchikomi-geiko” and the activation of “taryujiai”by the new method, had extended to the Iwakuni clan at latest in the Tenmei or Kansei period. However at that time all the teachers of kenjutsu-schools refused to adopt the new method, so no one of the bushi-class adopted it and took part in “taryu-jiai” in the clan.(2) With the activation of “taryu-jiai” in the Iwakuni clan, there appeared participants to it in the bushi-class in the latter half of the Bunsei period. Moreover, there appeared teachers of kenjutsu-school who approved to adopt the new method and to take part in “taryu-jiai” in the next Tenpo period. And this became the main method of kenjutsu in the clan.(3) When Yoro-kan (the clan school) was established in the 4th of the Koka period, it was publicly decided to adopt the new method and to practice “taryu-jiai” in the school. At this time it was Katayama-school that defied the decision. Seven years later, however, the new method was adopted in the school in the 1st of the Ansei period. As a result, in all the kenjutsu-schools in the Iwakuni clan the new method came to be used and “taryu-jiai” to be practiced, while existential significance of the traditional kata and schools main-tamed with it became quite small.

著者

直原 幹 市川 真澄 伊藤 政展

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.2, pp.25-34, 2009-02-01 (Released:2012-11-27)

参考文献数

32

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“Tanden, ” a Japanese term for the lower abdominal region below the navel, is believed in oriental physical arts to be extremely important in maintaining vitality, staying calm, and taking rational action. In this paper, we examine whether the “tanden” focus of attention exherts an influence on postural control. The effectiveness of this “tanden” focus of attention on postural control is estimated by observing the equilibrium of subjects tasked with standing upright while following different sets of instructions. Four groups of subjects are instructed to stand still with minimal body sway while standing on a force-plate system that measures their center of pressure (COP). Each group is given different instructions: One group focuses on markers placed 26 cm away from the middle line of the force plate (external focus), a second focuses on their feet (internal focus), and the third on their “tanden” (internal focus). The control group is given no specific focus instructions. The parameters of equilibrium are the length of COP, average velocity of COP, and ellipse area of COp.The results show: 1) The length of COP is significantly shorter (p<0.05) in the “tanden” focus group than in the feet-focus group and the control group.2) The average velocity of COP is significantly slower (p<0.05) in the “tanden” focus group than in the feet-focus group and the control group.3) In the ellipse area of COP, there is no difference among the four groups. These results suggest that “tanden” focus of attention attenuates body sway.

著者

浜ロ 雅行 林 邦夫 福永 哲夫 堀山 健治

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.10, no.2, pp.43-45, 1977-11-30 (Released:2012-11-27)

参考文献数

2

被引用文献数

1