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Updated: Jan 11, 2026

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Evaluating the Function of the Foot Core System in the Elderly
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使用超声波成像对长期脚不稳定性进行骨肌肉功能评估
1Department of Physical Therapy, Creighton University, Omaha, Nebraska, USA.
Journal of foot and ankle research
|November 18, 2025
概括
慢性脚不稳定 (CAI) 与肌缺陷有关. 超声波显示,CAI患者的肌肉尺寸较小,承重位置的激活率较低,表明功能障碍.
科学领域:
- 生物力学 生物力学
- 肌肉骨成像系统的成像
- 运动医学 运动医学
背景情况:
- 侧脚扭伤 (LAS) 经常导致慢性脚不稳定 (CAI).
- 在CAI中观察到肌肌肉衰弱,但基于类似的肌肉激活模式,神经缺陷不太可能发生.
- 超声波成像 (USI) 提供了肌肉形态和质量的非侵入性评估,但之前的研究缺乏具有重力的功能评估.
研究的目的:
- 与健康对照人群相比,研究CAI患者的肌肌肉特征.
- 为了评估肌肉横截面积 (CSA) 和非承重和承重的功能位置的回声性.
- 为了评估不同位置的肌的功能激活比率 (FAR).
主要方法:
- 一项涉及59名参与者的病例控制研究 (29名CAI,30名健康人).
- 使用USI来测量肌CSA,回声性和FAR在横卧 (非承重),双腿站立 (BLS) 和单腿站立 (SLS) (承重) 位置.
- 生态性分析量化了脂肪透/纤维化,较高的值表明肌肉质量较差.
主要成果:
- 与对照组相比,CAI组在BLS和SLS中表现出明显较小的腹CSA (p < 0.01).
- CAI参与者显示出更高的回声性 (较差的肌肉质量) (p < 0.01) 和更低的FAR在BLS (p < 0.01) 和SLS (p = 0.03).
- 在非承重位置 (p = 0.06) 中没有发现CSA的显著差异.
结论:
- 患有CAI的个体表现出肌肌肉尺寸减少,质量较差,特别是在举重的功能位置时活化较低.
- 这些发现突显了CAI在功能负载下腹肌功能变化.
- 在承重位中评估腹肌肌肉对于理解CAI功能缺陷至关重要.
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