著者

冨田 寛 石井 泰平 青柳 充雄

出版者

公益財団法人 日本醸造協会

雑誌

日本釀造協會雜誌 (ISSN:0369416X)

巻号頁・発行日

vol.71, no.3, pp.141-145, 1976-03-15 (Released:2011-11-04)

参考文献数

12

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酒の効能の1つに食欲増進作用があることはよく経験するところである。また料理を美味にするために酒が使用されることも多い。それではこの酒の主成分であるエチルアルコール自体の味は, またそれが人間の味覚受容器にどのように働くであろうか, 生理学の立場から解説していただいた。

著者

武田 誠司 石井 泰光 山本 正嘉 図子 浩二

出版者

一般社団法人日本体力医学会

雑誌

体力科学 (ISSN:0039906X)

巻号頁・発行日

vol.59, no.1, pp.107-118, 2010 (Released:2010-04-16)

参考文献数

28

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Running economy is an important factor in determining a performance of a long distance running. The purpose of this study was to examine the relationship between the running economy and the submaximal hopping economy. Twelve long-distance runners performed a submaximal repeated hopping exercise on a force platform at a frequency of 2.2Hz and the maximum five-repeated rebound jumping (5RJ). Jumping height, contact time, maximum ground reaction force and oxygen intake were recorded during submaximal repeated hopping exercise. In addition, they performed the submaximal running for a distance of 3200m on an outdoor 400m track. Oxygen intake was recorded during the submaximal running. Then running economy (RE = V/VO2) was calculated by using oxygen intake (VO2) and running speeds (V). Hopping economy (HE = h/VO2) was calculated by using oxygen intake (VO2) and average jumping height (h). As a result of this study, we confirmed that a submaximal repeated hopping exercise performed for a ten-minute period was an aerobic exercise and a steady-state exercise. There was a significant positive correlation between RE and HE (r = 0.805, p<0.01). These results suggest that hopping economy is an important factor in running economy. On the other hand, we did not find a significant correlation between HE and 5RJ. Furthermore, between RE and RJ index of the submaximal hopping exercise, a significant positive correlation was found (r = 0.735, p<0.01). Therefore, RE seems to be connected with the Stretch-shortening cycle (SSC) function of the legs. We conclude that the SSC ability of a long distance runner can be evaluated appropriately by using the submaximal repeated hopping exercise of this study.

著者

石井泰次郎 著

出版者

大倉書店

巻号頁・発行日

1923

著者

石井 泰光 山本 正嘉 図子 浩二

出版者

一般社団法人 日本体育学会

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

vol.55, no.1, pp.63-79, 2010 (Released:2010-07-20)

参考文献数

39

被引用文献数

3

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The purpose of this study was to investigate the similarities of upper torso rotation and pelvic rotation around the vertical axis of the global coordinate system with trunk rotation during throwing and striking movements. We enrolled twenty-three right-handed male college students, who performed baseball pitching and batting movements and the golf driver shot. During the throwing and striking movements, 3D coordinates of body landmarks were obtained using the VICON 612 system with 10 cameras operating at 120 frames per second. The ball speed during pitching and the head speed during batting and the driver shot were measured using a high-speed camera at 250 frames per second and analyzed using WINanalyze (2D motion analyzer). The angles of rotation of the upper torso and pelvis were calculated as the angles between the respective segment and the global x-axis. The trunk rotation angle was calculated as the angle between the upper torso segment and the pelvic segment. The sequential data for rotational movement variables were normalized from the onset of the minimum upper torso angle until release or impact. There were significant positive correlations between the ball speed during pitching, head speed during batting, and head speed during the driver shot (pitching vs. batting, r=0.627, p<0.01; pitching vs. driver shot, r=0.670, p<0.01; batting vs. driver shot, r=0.554, p<0.01). There were significant positive correlations between the two striking movements with regard to the maximum angular velocity of upper torso rotation (r=0.567, p<0.01) and pelvic rotation (r=0.523, p<0.05). The batting and driver shot showed similarity of trunk rotation and pelvic rotation in that the contribution of pelvic angular velocity to the maximum upper torso angular velocity was larger than the contribution of trunk rotational angular velocity to the maximum upper torso angular velocity. Upon trunk rotation, there were no significant positive correlations among the pitching, the batting, and the driver shot with regard to maximum angular velocity. These results indicate that the ball and head speeds are strongly related during pitching, batting, and the driver shot. The upper torso rotation and pelvic rotation around the vertical axis of the global coordinate system are related only during batting and the driver shot.

著者

石井泰光 木村亜美 黒川剛 山本正嘉

出版者

鹿屋体育大学

雑誌

スポーツパフォーマンス研究

巻号頁・発行日

vol.6, pp.175-183, 2014

著者

石井 泰光 黒川 剛 荒木 就平 山本 正嘉

出版者

一般社団法人日本体力医学会

雑誌

体力科学 (ISSN:0039906X)

巻号頁・発行日

vol.65, no.3, pp.327-335, 2016-06-01 (Released:2016-05-14)

参考文献数

17

被引用文献数

1

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The 30-seconds all-out sprint test on the cycle ergometer was performed by 10 high school and 13 college men’s cyclists. In addition, this study investigated their best time for 200 m (200mTT) and 1000 m (1000mTT) time trials in the velodrome. This study clarifies the relationship between muscle thickness of thigh, shank, and trunk and 1) the average speed for the 200mTT and 2) the 1000mTT in the field, and 3) the mean power of the 30-seconds all-out sprint cycling test. 1) The average speed for the 200mTT significantly correlated with the muscle thickness of posterior shank and front and lateral abdomen. 2) The average speed for the 1000mTT significantly correlated with the muscle thickness of posterior thigh and shank and front and lateral abdomen. 3) The mean power of the 30-seconds all-out sprint cycling test significantly correlated with the muscle thickness of anterior and posterior thigh, posterior shank, and front and lateral abdomen. Except for the average speed for the 200mTT and 1000mTT, the mean power of the 30-seconds all-out sprint cycling test was significantly related to the muscle thickness of anterior thigh. These results suggest that increasing muscle thickness of posterior thigh and shank and front and lateral abdomen is important for enhancing performance in sprint cycling.

著者

藤田 昌英 中野 陽典 太田 潤 熊西 康信 木本 安彦 大道 道大 薄金 眞雄 上田 進久 塚原 康生 藤原 彰 下妻 晃二郎 杉山 龍平 飯田 透志 梁 昌熙 稲葉 秀 奥山 也寸志 阪本 康夫 石井 泰介 田口 鐵男

出版者

The Japan Society of Coloproctology

雑誌

日本大腸肛門病学会雑誌 (ISSN:00471801)

巻号頁・発行日

vol.39, no.2, pp.187-192, 1986

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わが国で大腸癌が急増しつつある現在,信頼性が高く,かつ検診効率のよい集団検診法の確立が急がれる.われわれは昭和52年以来試みてきた3種の検診結果に基づき,.昭和57年4月から2年間,地域団体,職域団体,個人の3グループの計12,520名に対し,グアヤックスライド(シオノギ)にて制限食下に3日間便潜血を調べる方法と問診とを併用した大腸癌集団検診を実施した。要精検は3,434名(27.4%)であり,その内訳は,便潜血が1枚以上陽性であった者2,602名,3親等以内の家族に大腸癌のみられたハイリスク者524名,大腸癌を疑う症状を訴えた者308名であった。要精検者の64.4%(2,214名)が直腸指診,直腸鏡検査をうけた.注腸X線検査は1,397名,大腸ファイバースコピ一は187名に実施した.728名は消化管に何らかの異常所見がみられ,大腸癌は18名(0.14%),カルチノイドは1名,大腸ポリープは303名にみられた.大腸癌18名中17名は便潜血陽性で,残る1名はハイリスクでスクリーニングされた.腫瘍の局在ではS状結腸が10名と多かった,Dukes Cの進行癌は3名にすぎず,Dukes Bは4名であり,早期癌は10名をかぞえた.この集検法は無症状のかなりの大集団に実施でき,大腸癌をより早期に発見しうる信頼度の高い方法であると考えられた.

著者

縄田 亮太 石井 泰光 前田 明

出版者

一般社団法人 日本体育学会

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

vol.58, no.1, pp.111-122, 2013 (Released:2013-06-08)

参考文献数

12

被引用文献数

1 1

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The purpose of this study was to identify the effects of different ball distances on the upper and lower limbs for the overhand pass in volleyball. Eleven male college volleyball players participated. The subjects performed the overhand pass toward objects located at three different ball distances (3, 6, and 9 m) on two force platforms, and motion analysis was performed via a motion capture system comprising 12 high-speed video cameras.The following results were obtained: (1) As the ball distance increased, the maximum dorsal flexion angular velocity of the wrist decreased, whereas the length of the pull phase, the vertical peak force on the rear leg, the maximum extension angular velocity of the hip and knee, and the maximum plantar flexion angular velocity of the ankle all increased. Therefore, adjustment of the ball distance for the overhand pass was facilitated by changing the impulse of the ball caused by increasing the intensity of both the rear leg step and the wrist stiffness. (2) In the previous instructional manual, the buffer action for the falling ball during overhand passing was facilitated by flexion of the whole body. However, in this study, the buffer action was facilitated conducted only with the upper limb irrespective of the ball distance. From the viewpoint of the series of movements during overhand passing, the whole body was used in the period from flexion to extension, but the flexion action of the whole body was incorporated into the preparatory phase, and the buffer did not involve the lower limbs after ball contact.This difference between the previous instructional manual and the present findings are attributed to the imprecise definition of movement phases in the manual.

著者

石井泰次郎 著

出版者

和風会出版部

巻号頁・発行日

1921

著者

縄田 亮太 石井 泰光 前田 明

出版者

日本コーチング学会

雑誌

コーチング学研究 (ISSN:21851646)

巻号頁・発行日

vol.28, no.1, pp.41-52, 2014-11-20 (Released:2019-09-02)

参考文献数

20

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The purpose of this study is to identify the characteristics of the overhand pass in beach volleyball (BVB) by comparing it with the overhand pass in volleyball (VB). The following results were obtained:     (1) In the pull phase, wrist dorsiflexion occurred in VB. On the other hand, in BVB, the elbow was bent in addition to the wrist dorsiflexion. This finding suggests that there is a difference in the buffer action of the elbow between VB and BVB.     (2) In the push phase, the maximum angular velocities of knee and ankle joints were not during VB but during BVB. This finding suggests a timing difference in lower extension between VB and BVB. And, the largest angular velocity of the upper limbs was seen in the wrist during VB, whereas it was seen in the elbow during BVB. This suggests the segment of the body that accelerates the ball in VB is different from that in BVB. Besides, the timing for extending the upper and lower limbs differs in VB but is comparatively near in BVB.     These results suggest that the characteristics of BVB involve the buffer action of the ball with the elbow in addition to that with the wrist, and the acceleration of the ball with the knee and ankle and the simultaneous elbow extension.

著者

日置 敏昭 外山 建夫 森田 芳彦 渡部 浩志 石井 泰弘 二宮 佑一 大塚 吉道 和泉 吉則 合志 清一

出版者

一般社団法人映像情報メディア学会

雑誌

テレビジョン学会技術報告 (ISSN:03864227)

巻号頁・発行日

vol.10, no.4, pp.47-52, 1986-05

著者

外山 建夫 森田 芳彦 日置 敏昭 石井 泰弘 二宮 佑一 大塚 吉道 和泉 吉則 合志 清一

出版者

一般社団法人映像情報メディア学会

雑誌

テレビジョン学会技術報告 (ISSN:03864227)

巻号頁・発行日

vol.8, no.32, pp.9-14, 1984-11

著者

五十嵐 寿一 石井 泰 杉山 清春 IGARASHI Juichi ISHII Yasushi SUGIYAMA Kiyoharu

出版者

東京大学航空研究所

雑誌

東京大学航空研究所集報 (ISSN:05638097)

巻号頁・発行日

vol.4, no.1, pp.7-31, 1964-03

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振動,音響現象などの高速度の信号を解析するためのディジタル型相関器を試作したので報告する.相関をとるべき二つの信号はいったんデータレコーダ等に録音しその再生出力を相関器への入力電圧とする.この入力電圧は二つのアナログーディジタル(A-D)変換器によって一定時間ごとにそれぞれ2進4桁の数字に変換され,そのうち一方はシフトレジスタに入りある時間たってから読出されて他方との間に掛算が行なわれる.掛算の結果はパルス数に変換されカウンタに積算されていくが,特にこの相関器においてはA-D変換器等のドリフトによる誤差を最小にするために,二つの数の積のみでなく,それらのある一定数に対する補数同志の積をも積算に繰入れるという独特の方式を採用している.シフトレジスタの段数は11段であるが,二つのA-D変換器のサンプリング時刻はサンプリング週期の1/5ステップごとに相対的にずらせることができる.したがって全体としては正あるいは負の方向に55ステップの時間シフトをとることができる.入力信号の相関値はデータレコーダを繰返し再生しつつこれらの時間シフトのステップについて一つ一つ計算されていく.その際計算に使用するサンプルの数は相関器に任意に設定できるようになっている.この相関器は約400個のトランジスタ論理要素から構成されており約5Kcまでの周波数の入力信号を取扱うことができる.この報告では試作した相関器の動作原理や構造の説明などのほかに,すでにこの装置を用いて計算された多くの相関関数の中から二,三を選んで例示してある。

著者

石井泰次郎 著

出版者

大倉書店

巻号頁・発行日

1906

著者

石井 泰光 黒川 剛 山本 正嘉

出版者

社団法人日本体育学会

雑誌

日本体育学会大会予稿集

巻号頁・発行日

no.65, 2014-08-25

著者

石井 泰次郞

出版者

フレーベル會

雑誌

婦人と子ども

巻号頁・発行日

vol.1, no.6, pp.31-32, 1901-06

著者

木内 繁夫 加賀 勇治 西尾 功作 朝比 奈宏 山村 俊夫 村木 威 石井 泰則

出版者

公益社団法人日本放射線技術学会

雑誌

日本放射線技術學會雜誌 (ISSN:03694305)

巻号頁・発行日

vol.37, no.5, 1981-09-01

著者

石井 泰 山田 一郎 幹 康 五十嵐 寿一

出版者

一般社団法人日本音響学会

雑誌

日本音響学会誌 (ISSN:03694232)

巻号頁・発行日

vol.35, no.5, pp.226-234, 1979-05-01

被引用文献数

17

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A new technique to measure the ground to ground noise propagation was developed. The test sound of a band limited noise is emitted from a loudspeaker intermittently. A several second burst of the noise and the following pause of the same length are repeated. At a receiving spot, the sound intensity is integrated alternatively by two digital counters. One counter integrates the intensity of the test sound plus the background noise at that spot in the period for which the test sound is present. The other integrates the intensity of the background noise in the absent period of the test sound. Each of the devices at the source and receiving spots has a precise crystal oscillator as the clock. Once the synchronization of the two devices is made before a measurement, the relative phase of the operations of the devices is kept constant during the time of the measurement without any connection. After the completion of a predetermined number of integrations, the difference of the accumulated numbers in the two counters is read, which gives the intensity of the test sound at the receiving spot. Experiments using a 5-Watt loudspeaker showed that the noise attenuations of the distance of 170m can be measured with the statistical error less than 0. 5dB.

著者

三ツ井 紀子 吉田 和江 石井 泰博 白井 邦郎 長南 康正 岡村 浩

出版者

日本繊維製品消費科学会

雑誌

繊維製品消費科学 = Journal of the Japan Reseach Association for textile end-uses (ISSN:00372072)

巻号頁・発行日

vol.40, no.5, pp.62-70, 1999-05-25

被引用文献数

4