著者

半田 徹 加藤 浩人 長谷川 伸 岡田 純一 加藤 清忠

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.54, no.1, pp.43-54, 2009-06-30 (Released:2009-11-05)

参考文献数

27

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The purpose of this study was to examine muscle activities during seven traditional different free dynamic exercises designed to strengthen the abdominal muscles. Eleven adult men with experience in weight training were asked to perform three repetitions of LSU, BSU, TSU, TC, RSU, LR and SLR. Activities of the upper rectus abdominis (URA), lower rectus abdominis (LRA), external abdominal oblique (EAO), and rectus femoris (RF) during the hip flexion and hip extension phases of each exercise were examined by electromyography (EMG) and analyzed using root mean square (RMS) values. The following results were obtained: (1) The mean RMS values for the URA were larger during the RSU and SLR than during the other five exercises. The value for the same muscle was larger during the TC exercise than during the LSU, BSU, TSU, and LR exercises. The mean RMS value for the LRA was largest during the RSU exercise, while that during the SLR exercise was larger than those during the LSU, BSU, TSU, TC, and LR exercises. (2) The mean RMS value for the EAO was largest during the SLR exercise, while that during the RSU exercise was second-largest and that during the TSU exercise was third-largest. The mean RMS values for the RF were larger during the RSU and SLR than during the other five exercises. The smallest value for this muscle was recorded during the TC exercise. (3) In most of the exercises, RMS in the hip flexion phase was larger than in the hip extension phase, and each muscle exhibited a knee flexion phase/knee extension phase ratio of between 0.5 and 0.8. However, the ratio for EAO and RF exceeded this range. (4) The muscle activity for the RF muscle in the RSU and SLR exercises was large, implying excessive stress for the lumbar vertebrae. Nevertheless, these exercises induced active muscle activity, and appeared desirable to perform with sufficient attention to safety.These results suggest that RSU and SLR exercises are the most effective movements for stimulating the URA, LRA and EAO. Moreover, TC is an effective movement for training the URA, and TSU is an effective movement for training.

著者

半田 徹 加藤 浩人 長谷川 伸 岡田 純一 加藤 清忠

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

pp.0907160099, (Released:2009-07-20)

参考文献数

27

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The purpose of this study was to examine muscle activities during seven traditional different free dynamic exercises designed to strengthen the abdominal muscles. Eleven adult men with experience in weight training were asked to perform three repetitions of LSU, BSU, TSU, TC, RSU, LR and SLR. Activities of the upper rectus abdominis (URA), lower rectus abdominis (LRA), external abdominal oblique (EAO), and rectus femoris (RF) during the hip flexion and hip extension phases of each exercise were examined by electromyography (EMG) and analyzed using root mean square (RMS) values. The following results were obtained: (1) The mean RMS values for the URA were larger during the RSU and SLR than during the other five exercises. The value for the same muscle was larger during the TC exercise than during the LSU, BSU, TSU, and LR exercises. The mean RMS value for the LRA was largest during the RSU exercise, while that during the SLR exercise was larger than those during the LSU, BSU, TSU, TC, and LR exercises. (2) The mean RMS value for the EAO was largest during the SLR exercise, while that during the RSU exercise was second-largest and that during the TSU exercise was third-largest. The mean RMS values for the RF were larger during the RSU and SLR than during the other five exercises. The smallest value for this muscle was recorded during the TC exercise. (3) In most of the exercises, RMS in the hip flexion phase was larger than in the hip extension phase, and each muscle exhibited a knee flexion phase/knee extension phase ratio of between 0.5 and 0.8. However, the ratio for EAO and RF exceeded this range. (4) The muscle activity for the RF muscle in the RSU and SLR exercises was large, implying excessive stress for the lumbar vertebrae. Nevertheless, these exercises induced active muscle activity, and appeared desirable to perform with sufficient attention to safety.These results suggest that RSU and SLR exercises are the most effective movements for stimulating the URA, LRA and EAO. Moreover, TC is an effective movement for training the URA, and TSU is an effective movement for training.

著者

岡田 純子

出版者

日本フランス語フランス文学会

雑誌

関西フランス語フランス文学 (ISSN:1341433X)

巻号頁・発行日

no.2, pp.55-56, 1996-03-31

著者

半田 徹 加藤 浩人 長谷川 伸 岡田 純一 加藤 清忠

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.54, no.2, pp.159-168, 2005 (Released:2006-12-01)

参考文献数

22

被引用文献数

3 7

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To compare the effectiveness of five different muscle training movements on the biceps brachii, latissimus dorsi and trapezius muscles, eight weight-trained men (age, 20.4±0.5 years) were asked to perform three repetitions, at 70% one repetition maximum, of upright rowing (UR) and bent-over rowing (BR) exercises using a barbell ; and seated rowing (SR), front lat pull-down (LPf) and back lat pull-down (LPb) exercises using a Universal Machine. The activities of the biceps brachii, latissimus dorsi, and trapezius during the elbow flexsion and elbow extension phases of each exercise were analyzed using integrated electromyography (EMG) and normalized I-EMG. The results were as follows :1. The mean nrmsEMG values for the biceps brachii were larger during UR and LPf exercises than during BR, SR, and LPb exercises, suggesting that UR and LPf are more effective than the other movements for training the biceps brachii. The mean nrmsEMG values for the latissimus dorsi were larger during SR, LPf, and LPb exercises, followed by BR and UR exercises (in descending order), suggesting that SR, LPf, and LPb exercises are more effective than the other movements for training the latissimus dorsi.2. The mean nrmsEMG values for the upper trapezius were larger during UR and BR exercises than during SR, LPf, and LPb exercises, suggesting that UR and BR exercises are more effective than the other movements for training the upper trapezius. The mean nrmsEMG values for the middle trapezius were larger during BR and SR exercises than during UR, LPf, and LPb exercises, suggesting that BR and SR exercises are more effective than the other movements for training the middle trapezius. The mean nrmsEMG values for the lower trapezius were larger during BR exercise than during other movements, suggesting that BR exercise is more effective than the other movements for training the lower trapezius.3. In all the exercises, each muscle showed a higher nrmsEMG value during the elbow flexsion phase than during the elbow extension phase. This observation suggests that the training method examined in this study should emphasize the elbow flexsion movement.The present results suggest that UR exercise is the most effective movement for training the biceps brachii and upper trapezius, BR is most effective for training the upper trapezius, middle trapezius and lower trapezius, SR is most effective for training the latissimus dorsi and middle trapezius, LPf is most effective for training the biceps brachii and latissimus dorsi, and LPb is most effective for training the latissimus dorsi.

著者

渡辺 熙 岡田 純一郎 竹内 一夫 豊田 博

出版者

杏林医学会

雑誌

杏林医学会雑誌 (ISSN:03685829)

巻号頁・発行日

vol.11, no.1, pp.27-31, 1980

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1953年にLichtensteinがeosinophilic granuloma, Hand-Schuller-Christian病Letterer-Siwe病の3疾患を包括して, Histiocytosis Xなる語を提唱した事は周知の事実である。今回, 我々は9才女児の後頭頭頂部の軽度圧痛を初発症状として発症した頭蓋骨の単発性eosinophilic granulomaを経験した。そこでこの症例の臨床経過を述べ, 更に若干の文献的考察を加える。

著者

原 孝子 塚越 克己 雨宮 輝也 伊藤 静夫 岡田 純一 黒田 幸雄 高沢 晴夫

出版者

日本体力医学会

雑誌

体力科學 (ISSN:0039906X)

巻号頁・発行日

vol.42, no.6, 1993-12-01

著者

真部 正敏 猶原 順 佐藤 禎 岡田 純也

出版者

Japanese Society for Food Science and Technology

雑誌

日本食品工業学会誌 (ISSN:00290394)

巻号頁・発行日

vol.35, no.7, pp.497-501, 1988-07-15 (Released:2011-02-17)

参考文献数

10

被引用文献数

2 8

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温州ミカンとリンゴのパルプに0.05N塩酸液など3種の抽出液を加え, Mw (2450MHz, 1030w)を1回につき5分間照射してペクチンを抽出し,抽出の効果,抽出されたペクチンの性状を調べた. (1) Mw加熱による抽出では,湯浴による加熱抽出に比べて,抽出に要する時間は著しく短縮された.また,抽出されるペクチン量は, Mw加熱法の方が高かった. (2) Mw加熱による抽出液をエタノール沈殿して調製したペクチンのガラクツロン酸量,エステル化度および相対粘度は, Mwの照射回数が増すに従って減少した.

著者

池袋 敏博 久保 啓太郎 岡田 純一 矢田 秀昭 角田 直也

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.60, no.4, pp.401-411, 2011 (Released:2011-08-30)

参考文献数

37

被引用文献数

7 7

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This study aimed to investigate the differences in the development of muscle thickness (MT) in the lower limbs with specific sports-event training. Furthermore, the relationship between MT of the lower limbs for weightlifters and sprinters and their competition performances (total weight lifted and 100m sprint times) was examined. Subjects were 64 males divided into 3 groups: weightlifters (n=20), sprinters (n=20), and untrained subjects as controls (n=24). The MT{relative to (body weight)1/3}of knee extensors (KE), knee flexors (KF), plantar flexors (PF) and dorsi flexors (DF) was measured at 21 sites (proximal, middle and distal) along the length of the upper and lower leg by B-mode ultrasound. The MT of KE for weightlifters was significantly greater than that for sprinters and controls, while the MT of KF and PF for sprinters was significantly greater than that for weightlifters and controls. The MT of rectus femoris (RF), vastus intermedius (VI), vastus lateralis (VL) and vastus medialis (VM) for weightlifters was significantly greater than that for sprinters and controls, while the MT of RF and VM for sprinters was greater than that of controls. On the other hand, the MT of KE for weightlifters and sprinters (especially VM) correlated significantly with competition performances. These results indicated that squatting affected the MT of KE except for RF while sprinting affected the MT of KF and PF. It was also concluded that the MT of KE for weightlifters and sprinters (particularly VM) was related to their competition performances.

著者

武村 健矢 畑中 拓 岡田 純弥 目黒 淳一

出版者

一般社団法人 日本ロボット学会

雑誌

日本ロボット学会誌 (ISSN:02891824)

巻号頁・発行日

vol.39, no.9, pp.854-857, 2021 (Released:2021-11-17)

参考文献数

10

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Virtual reality technology has become widespread and motion platforms have been developed. However, the relationship between motion and sensation in MP has not been fully evaluated. Therefore, in this study, we confirmed that front and back motion and continuous rotation synchronized to the video could affect the human sensation of rotation. Then, we experimentally estimated the threshold of rotational sensation that humans can perceive, and tested the relationship between MP motion and sensation. The experimental results confirmed that 75% of people could not perceive continuous rotation up to 25 [deg/s] and that it may not affect the physical sensation.

著者

岡田 純一

出版者

The Japanese Society for the History of Economic Thought

雑誌

経済学史学会年報 (ISSN:04534786)

巻号頁・発行日

vol.20, no.20, pp.26-34, 1982 (Released:2010-08-05)

著者

長谷川 伸 岡田 純一 加藤 清忠

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.57, no.1, pp.131-140, 2008-02-01 (Released:2008-08-06)

参考文献数

23

被引用文献数

1

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The purpose of this study was to investigate sex differences in the muscle volume (MV) of the iliopsoas, psoas major, and iliacus muscles, normalized by fat free mass (FFM), in the elderly. The subjects were 15 males and 15 females 65 years of age or over. Serial transverse 1.5T magnetic images (10 mm slice) of each subject were taken between the 12th thoracic vertebrae and the lesser trochanter. FFM was measured with a bioelectrical impedance analyzer. The mean MV of each muscle on the right and left sides were calculated and used for regression analysis of the relationship between MV and FFM.A significant correlation was observed between MV and FFM of the iliacus in both sexes (p<0.01), but not between the MV and FFM of the psoas major. MV normalized by FFM and cross-sectional area (CSA) normalized by FFM2/3 showed significantly greater values for the psoas major in the males than in the females (p<0.001), but there was no sex difference in the MV or CSA normalized by FFM of the iliacus.These results suggest that elderly males tend to have a greater muscle volume and cross-sectional area of the iliopsoas than elderly females, and that these sex differences are attributable to differences in the psoas major.

著者

半田 徹 加藤 浩人 長谷川 伸 岡田 純一 加藤 清忠

出版者

早稲田大学スポーツ科学学術院

雑誌

スポーツ科学研究

巻号頁・発行日

vol.5, pp.58-70, 2008

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論文

著者

岡田 純卓 押本 浩一 飯田 智広 片貝 堅志 下田 隆也 増田 淳 松本 純一 荒井 泰道

出版者

一般社団法人 日本消化器内視鏡学会 関東支部

雑誌

Progress of Digestive Endoscopy (ISSN:13489844)

巻号頁・発行日

vol.65, no.2, pp.60-61, 2004-12-01 (Released:2014-01-28)

参考文献数

4

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次亜塩素酸ナトリウム水溶液誤飲による食道炎では,多くの市販品は3%前後と低濃度である為,狭窄を生じることは少ないとされている。今回,高濃度のものによって腐食性食道炎から食道狭窄を生じることを経験したので文献的考察を加えて報告する。

著者

穂坂 茂 間中 久美 岡田 純 近藤 啓文 柏崎 禎夫

出版者

日本臨床免疫学会

雑誌

日本臨床免疫学会会誌 (ISSN:09114300)

巻号頁・発行日

vol.16, no.1, pp.52-57, 1993-02-28 (Released:2009-01-22)

参考文献数

11

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&全身性エリテマトーデス(SLE)は男性にはまれな疾患である.今回,われわれは男性SLE 17例を対象に,その臨床像,血清学的および内分泌学的検討を行った.発症年齢,観察期間を一致させた女性SLEと比較して,男性例では日光過敏症が有意に多く(p=0.04),リンパ節腫脹と中枢神経障害がやや多かった.腎障害は同率であったが,ネフローゼ症候群が男性に多かった.白血球減少は女性例に有意に多かった(p=0.07)が,血清学的検査で男女間に有意差は認められなかった.治療内容では,男性例により多くのステロイドホルモンが必要とされた,われわれの男性SLEは女性例に比してやや重症である傾向がみられた.血中性ホルモン値では,従来報告されているestrogenの上昇を示す症例はなく,一部の症例で大量ステロイド剤や免疫抑制剤による精腺障害,視床下部-下垂体機能障害が疑われた.

著者

船渡 和男 福永 哲夫 川上 泰雄 杉田 正明 矢田 秀昭 岡田 純一 小沢 治夫 田中 泰博

出版者

日本体力医学会

雑誌

体力科學 (ISSN:0039906X)

巻号頁・発行日

vol.42, no.6, 1993-12-01

著者

伊藤 静夫 塚越 克巳 雨宮 輝也 原 孝子 岡田 純一 黒田 善雄 川原 貴

出版者

社団法人日本体育学会

雑誌

日本体育学会大会号

巻号頁・発行日

no.44, 1993-10-05

著者

乾 雅視 細川 伸也 松田 和博 内藤 愛雄 岡田 純平 石川 大介 片山 芳則 筒井 智嗣 アルフレッド バロン

出版者

一般社団法人日本物理学会

雑誌

日本物理学会講演概要集 (ISSN:13428349)

巻号頁・発行日

vol.60, no.1, 2005-03-04

著者

岡田 純一

出版者

早稲田商学同攻会

雑誌

早稲田商学=The Waseda commercial review (ISSN:03873404)

巻号頁・発行日

vol.274・275合併号, pp.367-394, 1978-12

著者

斉藤 二郎 内藤 和章 岡田 純二

出版者

公益社団法人地盤工学会

雑誌

土質工学会論文報告集 (ISSN:03851621)

巻号頁・発行日

vol.16, no.3, 1976-09-15

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地下構造物を建造する場合, 付近の構造物に変状を与えないための防護工はきわめて重要であるが, その防護工の一つとして, 注入工法が採用されることが多い。特に, 軟弱な粘性土地盤においては, 脈状注入による圧密効果をねらって注入工法が採用される。ところで, グラウトとして, 発泡性のきわめて優れたものを使用すると, 従来の無発泡性グラウトに比して, 発泡圧力の作用により圧密促進が倍加されると考えられる。この論文は, 軟弱地盤中のシールド掘進に伴う橋脚などの防護にこの発砲グラウト(OH-GROUT)を使用し, その注入効果および固結効果について検討を加えている。検討の結果, 発砲性グラウトは軟弱地盤改良にかなり有効であることが判明した。

著者

亀山 剛 森田 敏弘 岡田 純 内藤 順一 宇都宮 妙子

出版者

日本生態学会

雑誌

保全生態学研究 (ISSN:13424327)

巻号頁・発行日

vol.11, no.2, pp.158-166, 2006-12-05

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山陽地方に生息するダルマガエルRana porosa brevipoda岡山種族は、現在日本で最も絶滅が危倶されているカエル類の地域個体群のひとつである。その中で、土地区画整理事業によって2003年11月に生息地が消滅した広島県神辺町産の個体群を飼育下に緊急避難させ、新たな生息地へ試験的に再導入をおこなった。ダルマガエルの生息には水田環境が絶対条件で、なおかつ、生活史に合わせた人為的な水管理が重要であった。したがって、導入場所の選定にあたっては、地権者である農家の理解と協力が得られるかどうかに重点を置いた。その結果、広島県世羅郡の水田地帯にある休耕地を試験湿地に設定し、2004年5月-6月にかけて幼体117個体、幼生2,947個体の導入を行った。その後のモニタリングでは、2004年10月には、成体18個体、幼体248個体、合計266個体のダルマガエルが確認された。翌2005年6月には少なくとも3クラッチ分の自然産卵が確認され、同年10月には、成体15個体、幼体60個体、合計75個体のダルマガエルが確認された。以上により、飼育集団をある程度残した上で、自立した野外集団の創出に成功した。この結果を受けて、2005年には新たな導入地を設定し、幼生の導入を始めている。今後は追加導入およびモニタリングを実施し、定着へ向けての活動を継続する予定である。