No Association of Plantar Aponeurosis Stiffness with Medial Longitudinal Arch Stiffness
No Association of Plantar Aponeurosis Stiffness with Medial Longitudinal Arch Stiffness
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DOI：
10.1055/a-1373-5734
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发表时间：
2021-02-23
影响因子：
2.5
通讯作者：
Yanagiya, Toshio
中科院分区：
文献类型：
--
作者：
Noro, Hiroaki;Miyamoto, Naokazu;Yanagiya, Toshio
据报道，内侧纵弓刚度较低是下肢疾病的一个危险因素。足底腱膜被认为是维持内侧纵弓的关键，因此，内侧纵弓的刚度可能会受到足底腱膜刚度的影响。然而，这还没有得到实验证明。我们研究了人体内足底腱膜刚度和内侧纵弓刚度之间的关系。30名年轻人参加了这项研究。在仰卧位和单腿站立位分别采用B型超声和剪切波弹性成像测量足舟骨高度和足底腱膜剪切波速度（刚度指数）。根据体重、足长和仰卧和单腿站立条件之间的舟骨高度差异（即，舟骨下降）。仰卧位和单腿站立位足底腱膜的剪切波速度与内侧纵弓刚度无显著相关性（脊柱：r=-0.14，P=0.45站立位：r=-0.16，P=0.41）。研究结果表明，内侧纵弓刚度将受到足部结构刚度的强烈影响，而不是足底腱膜。
Lower stiffness of the medial longitudinal arch is reportedly a risk factor for lower leg disorders. The plantar aponeurosis is considered essential to maintaining the medial longitudinal arch. It is therefore expected that medial longitudinal arch stiffness is influenced by plantar aponeurosis stiffness. However, this has not been experimentally demonstrated. We examined the relationship between the plantar aponeurosis stiffness and medial longitudinal arch stiffness in humans in vivo. Thirty young subjects participated in this study. The navicular height and shear wave velocity (an index of stiffness) of the plantar aponeurosis were measured in supine and single-leg standing positions, using B-mode ultrasonography and shear wave elastography, respectively. The medial longitudinal arch stiffness was calculated based on body weight, foot length, and the difference in navicular height between the supine and single-leg standing conditions (i.e., navicular drop). Shear wave velocity of the plantar aponeurosis in the supine and single-leg standing positions was not significantly correlated to medial longitudinal arch stiffness (spine: r=-0.14, P=0.45 standing: r=-0.16, P=0.41). The findings suggest that the medial longitudinal arch stiffness would be strongly influenced by the stiffness of foot structures other than the plantar aponeurosis.