Establishing a method for assessment of muscle hardness

建立肌肉硬度评估方法

• 批准号: 22800089
• 负责人: AKAGI Ryota
• 金额: $ 1.73万
• 依托单位: National Agency for the Advancement of Sports and Health
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Research Activity Start-up
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-22800089/
• 关键词: 筋硬度; 筋力; 筋サイズ; 関節トルク; 筋厚; 筋体積; 腓腹筋内側頭; 下腿三頭筋; エラストグラフィ; 超音波診断装置

In this study, the muscle hardness of the plantar flexors was determined using ultrasound real-time tissue elastography and two types of custom-made tissue mimicking materials of known hardness and its relations with muscle strength and volume were examined. It was shown that the muscle hardness with no passive tension depends on the muscle size but does not relate to the muscle strength. Thus, it is suggested that interindividual differences in muscle strength per size are not significantly influenced by differences in muscle hardness.

在这项研究中，足底屈肌的肌肉硬度，使用超声实时组织弹性成像和两种类型的定制的组织模仿材料的已知硬度及其与肌肉力量和体积的关系进行了检查。结果表明，无被动张力时的肌肉硬度取决于肌肉大小，而与肌肉力量无关。因此，这表明，肌肉硬度的差异，肌肉力量的个体间差异并没有显着的影响。

项目成果

Size-strength relationships of the elbow flexors and extensors are not affected by age or gender

肘部屈肌和伸肌的大小与力量关系不受年龄或性别的影响

• DOI: 10.1080/17461391.2010.509890
• 发表时间: 2011
• 期刊: European Journal of Sport Science
• 影响因子: 3.2
• 作者: Akagi R;Takai Y;Ohta M;Kanehisa H;Fukunaga T;Kawakami Y
• 通讯作者: Kawakami Y

Visualization of the Temperature Change by the Icing using the T1 Value of the Magnetic Resonance Imaging (MRI)

使用磁共振成像 (MRI) 的 T1 值可视化结冰引起的温度变化

• 发表时间: 2011
• 作者: Tohdoh T;Habuchi H;Akagi R;Takahashi K;Maruyana K;Jellus V;Dohi;M
• 通讯作者: M

Methodological Issues Related to Thickness-Based Muscle Size Evaluation

• DOI: 10.2114/jpa2.30.169
• 发表时间: 2011-07-01
• 期刊: JOURNAL OF PHYSIOLOGICAL ANTHROPOLOGY
• 影响因子: 3.1
• 作者: Akagi, Ryota;Iwanuma, Soichiro;Kawakami, Yasuo
• 通讯作者: Kawakami, Yasuo

Relationships between muscle size and hardness of the medial gastrocnemius at different ankle joint angles in young men

• DOI: 10.1258/ar.2011.110481
• 发表时间: 2012-04-01
• 期刊: ACTA RADIOLOGICA
• 影响因子: 1.3
• 作者: Akagi, Ryota;Chino, Kentaro;Takahashi, Hideyuki
• 通讯作者: Takahashi, Hideyuki

Longitudinal and transverse deformation of human Achilles tendon induced by isometric plantar flexion at different intensities

• DOI: 10.1152/japplphysiol.00776.2010
• 发表时间: 2011-06-01
• 期刊: JOURNAL OF APPLIED PHYSIOLOGY
• 影响因子: 3.3
• 作者: Iwanuma, Soichiro;Akagi, Ryota;Kawakami, Yasuo
• 通讯作者: Kawakami, Yasuo