在体内小腿前肌肉机械通过使用脚关节运动时刻和剪切波弹性学来估计力
Cemre Su Kaya Keles1, Jennifer Hiller2, Manuela Zimmer2
1Institute of Structural Mechanics and Dynamics in Aerospace Engineering, University of Stuttgart, Stuttgart, Germany. cemre-su.kaya-keles@isd.uni-stuttgart.de.
Scientific reports
|September 12, 2025
概括
剪波弹性图 (SWE) 测量了前 (TA) 肌肉硬度. SWE反映了被动肌肉特性和收缩强度,但在最大努力时没有积极的刚性,突出了其潜力和生物力学验证的需要.
科学领域:
- 生物力学 生物力学
- 肌肉骨研究的研究.
- 医学成像医学成像
背景情况:
- 了解个体肌肉对关节机制的贡献至关重要.
- 前部 (TA) 肌肉在脚关节功能中起着关键作用.
- 剪波弹性图 (SWE) 是一种评估肌肉机械性能的新兴技术.
研究的目的:
- 通过使用SWE.来研究前 (TA) 肌肉的剪切模量.
- 检查TA剪模和脚角,收缩强度和TA力之间的关系.
- 评估SWE在理解动态关节运动期间肌肉力学方面的实用性.
主要方法:
- 在14名健康志愿者中测量了SWE,电肌图 (EMG) 和脚关节的动量.
- 在一系列的脚角度收集数据 (-15°背部曲到45°脚部曲).
- 测量是在休息,次最大和最大自愿收缩 (MVC) 期间进行的.
主要成果:
- TA的被动剪模量随着脚部曲而增加.
- 在MVC过程中,脚关节的运动矩达到15°的峰值,但TA剪切模量保持不变.
- SWE有效地检测到收缩强度的变化 (25%,50%,75% MVC).
结论:
- SWE可以评估长度依赖的被动肌肉特性,并反映收缩强度.
- 在MVC的TA剪切模量与联合矩衍生的触角模量没有相关性,这表明评估活跃肌肉性的局限性.
- 对于研究肌肉力学和关节动力学来说,SWE是有前途的,但对于活跃收缩需要进一步验证.
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