相关实验视频
Updated: Jul 11, 2025

10:53
A Novel Application of Musculoskeletal Ultrasound Imaging
Published on: September 17, 2013
24.2K
使用超声波剪切波弹性学检测骨肌力学与年龄相关的变化
Filiz Ateş1, Justus Marquetand2,3,4, Manuela Zimmer5
1Institute of Structural Mechanics and Dynamics in Aerospace Engineering, University of Stuttgart, Stuttgart, Germany. filiz.ates@isd.uni-stuttgart.de.
Scientific reports
|November 17, 2023
概括
在老年人中,衰老显著改变肌肉机制,增加被动性,减少活力. 超声波切割波弹性图 (SWE) 能够有效地检测双臂肌肉功能中这些与年龄相关的变化.
科学领域:
- 老年学是一门学科.
- 生物医学工程 生物医学工程
- 肌肉骨生理学 肌肉骨生理学
背景情况:
- 衰老的特点是sarcopenia,导致肌肉质量和力量的减少.
- 需要使用非侵入性技术来量化肌肉力学与年龄相关的变化.
- 超声波切割波弹性图 (SWE) 提供了一种有前途的方法来评估肌肉组织的特性.
研究的目的:
- 为了研究双臂肌 (BB) 肌肉机制的与年龄相关的差异,使用SWE.
- 确定剪切弹性模块是否反映了被动肌肉力,激活依赖的变化和与年龄相关的变化.
- 为了比较健康的老年人和年轻人之间的BB肌肉特性.
主要方法:
- 参与者 (老年人:60-80岁;年轻人:20-40岁) 接受了SWE,表面电肌图和肘部扭矩测量.
- 在被动和活跃状态下,在五个肘部位置进行了测量.
- 剪切弹性模量与肘部角度,肌肉激活和年龄组相关分析.
主要成果:
- 与年轻人相比,老年人表现出高达52.58%的被动BB剪切弹性模量.
- 在老年人中,肘部最大曲扭矩降低了,特别是在延伸的位置 (23.67%较弱).
- 年龄,肘部角和活动水平显著影响了活跃的剪切弹性模量,老年人在次最大收缩期间显示较低的值.
结论:
- SWE有效量化了被动和取决于激活的BB肌肉力学.
- 该研究发现了与年龄相关的肌肉性和力量产生能力的显著变化.
- 剪切弹性模块显示出潜在的生物标志物,用于检测变化的肌肉力学在衰老.
相关概念视频
Ultrasound II: Endoscopic Ultrasound and FibroScan
115
Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
Endoscopic Ultrasound (EUS):
Endoscopic Ultrasound (EUS):
115
Ultrasonography
4.5K
Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called...
During an ultrasonography procedure, a handheld device called...
4.5K

