The Research of EMG activity of the rotator cuff muscles and the optimal training machine production to train those muscles.

肩袖肌肉肌电图活动的研究以及训练这些肌肉的最佳训练机器生产。

• 批准号: 15500462
• 负责人: KATO Kiyotada
• 金额: $ 2.11万
• 依托单位: Waseda University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15500462/
• 关键词: rotator cuff muscles; muscle volume; electromyogram; magnetic resonance imaging; training; 外旋運動

【study1】The purpose of this study was to investigate the effect of the difference load and repetition on the EMG activity of shoulder muscles during the performance of the shoulder rotation exercise. EMG activity for the infraspinatus, posterior deltoid, middle deltoid and middle trapezius were recorded using surface electrode and normalized using maximum voluntary contraction.In the relationship between load and %iEMG, the infraspinatus showed significant differences at 20%IS to 60%IS in comparison with that during non-load movement. In the relationship between repetition and %iEMG, the infraspinatus showed significant differences 9 to 20 repetition during 10%IS(isometric strength) movement, 4 to 20 repetition during 20%IS and 1 to 20 repetition during 30%IS in the comparison with that during each non-load monement.These results suggest that 20 repetition and more at 10% IS load, 7 to 10 repetitions at 20%IS load and 3 to 7 repetition at 30%IS load are the appropriate range of training for the infraspinatus muscle.【Study 2】The purpose of this study was to develop the rotator cuff training machine. First, the shoulder rotational strength and range of motion data for males from 12 to 21 years old were collected. From this data, it understood that the load needed for the rotator cuff training machine is light in comparison with the load that is used with an existing training machine. Furthermore, load adjustment for each several hundreds gram is necessary. This research group did the design of the training machine and asked the production of the machine of the manufacturer of the speciality.

【study1】本研究旨在探讨不同负荷和重复对肩部旋转运动中肩部肌肉肌电活动的影响。用表面电极记录冈下肌、后三角肌、中三角肌和中斜方肌的肌电活动，用最大自愿收缩归一化。在负荷与%iEMG的关系中，与无负荷运动时相比，20%IS和60%IS时冈下肌表现出显著差异。在重复与%iEMG的关系中，10%IS（等距力量）运动时9 ~ 20次重复、20%IS运动时4 ~ 20次重复和30%IS运动时1 ~ 20次重复的冈下肌与各无负荷运动时的差异显著。结果表明，10% IS负荷下重复20次以上、20%IS负荷下重复7 ~ 10次、30%IS负荷下重复3 ~ 7次是冈下肌的适宜训练范围。【研究2】本研究的目的是开发肩袖训练机。首先，收集了12 - 21岁男性的肩关节旋转强度和活动范围数据。从这些数据可以看出，与现有的训练机相比，肩袖训练机所需的负荷较轻。此外，每几百克的负载调整是必要的。本课题组对训练机进行了设计，并询问了专业厂家的生产情况。

项目成果

MRIによる野球投手の回旋腱板筋と三角筋の形態分析

利用 MRI 对棒球投手肩袖和三角肌进行形态学分析

• 发表时间: 2003
• 期刊: ヒューマンサイエンス リサーチ 12
• 作者: 長谷川伸;館俊樹;斉藤正男;斉藤恵一;王力群;加藤清忠
• 通讯作者: 加藤清忠

A comparison of shoulder rotational strength, shoulder range of motion, and rotator cuff muscle thickness between the dominant and nondominant shoulders in baseball players of different ages.

不同年龄棒球运动员优势肩和非优势肩的肩部旋转力量、肩部活动范围和肩袖肌肉厚度的比较。

• 发表时间: 2004
• 期刊: Human Science Resarch(Graduate school of human sciences Waseda University) 13
• 作者: Shin Hasegawa;Toshiki Tachi;Keiichi;Jun Kubota;Yusuke Akiyama;Kiyotada Kato
• 通讯作者: Kiyotada Kato

野球投手の回旋腱板筋(rotator cuff muscles) と三角筋のMRI法による筋量分析とその筋力特性

棒球投手肩袖肌和三角肌的 MRI 肌肉质量分析及其力量特征

• 发表时间: 2004
• 期刊: 体力科学 53(5)
• 作者: 長谷川伸;館俊樹;斉藤恵一;王力群;加藤清忠
• 通讯作者: 加藤清忠

Morphological analysis of the rotator cuff and deltoid muscles using magnetic resonance imaging in collegeate baseball pitchers.

使用磁共振成像对大学棒球投手的肩袖和三角肌进行形态学分析。

• 发表时间: 2003
• 期刊: Human Science Resarch(Graduate school of human sciences Waseda University) 12
• 作者: Shin Hasegawa;Toshiki Tachi;Masao Saito;Keiichi Saito;Liqun Wang;Kiyotada Kato
• 通讯作者: Kiyotada Kato

年齢のことなる野球選手の肩関節回旋筋力、可動域、回旋腱板筋の筋厚に関する比較

不同年龄棒球运动员肩关节旋转强度、活动范围及肩袖肌肉厚度比较

• 发表时间: 2004
• 期刊: ヒューマンサイエンスリサーチ 13
• 作者: 長谷川伸;館俊樹;久保田潤;秋山裕介;加藤清忠
• 通讯作者: 加藤清忠