健康个体部肌肉的剪切波弹性图
Mary N Henderson1, David B Jordan1, Zong-Ming Li1,2,3
1University of Arizona College of Medicine, Hand Research Laboratory, Department of Orthopaedic Surgery, Tucson, Arizona, United States.
Journal of medical imaging (Bellingham, Wash.)
|November 17, 2025
概括
削波速度 (SWS) 在绑架者pollicis brevis和反对者pollicis肌肉增加了更大的捏击力. 在部肌肉之间,SWS有显著的差异,这表明它有可能评估处于紧张状态下的肌肉.
科学领域:
- 生物力学 生物力学
- 肌肉骨超声波 肌肉骨超声波
- 人体生理学 人体生理学
背景情况:
- 然后的肌肉对于手的灵巧和功能至关重要.
- 了解肌肉特性如何随力变化对于诊断和管理手部疾病至关重要.
研究的目的:
- 为了研究在健康成年人不同力下,单个肌 (abductor pollicis brevis,opponens pollicis,flexor pollicis brevis) 内剪切波速度 (SWS) 的变化.
- 为了测试SWS在部肌肉之间有所不同,并且随着更大的捏压力而增加的假设.
主要方法:
- 超声波成像被用来测量13名健康参与者的abductor pollicis brevis (APB),opponens pollicis (OPP) 和flexor pollicis brevis (FPB) 肌肉中的SWS.
- 参与者在各种力量下执行了同位数缩任务:0N,20N,10%的最大缩力 (MPF) 和20%的MPF.
主要成果:
- 在绝对和相对力 (p < 0.01) 条件下,在个体部肌肉中观察到SWS的显著变化.
- 在APB (p < 0.001) 和OPP (p < 0.001) 中,SWS从0到20N的强度显著增加,但在FPB中没有 (p = 0.873).
- 在APB (p = 0.005) 中,SWS从0到20%的MPF显著增加,但在OPP (p = 0.586) 或FPB (p = 0.984) 中没有显著增加.
结论:
- 在APB和OPP肌肉中的剪切波速度随着施加的力而增加,这表明肌之间存在显著的差异.
- SWS评估显示,作为一种在不同自愿力条件下评估肌肉的方法,特别是APB和OPP,它是有前途的.
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