摘要翻译：
人类依靠脚的僵硬来承受行走和奔跑的推进力。内侧纵弓(MLA)和横跗弓(TTA)是提高人体中足纵向弯曲刚度的关键适应体。TTA被假设通过横向组织刚度和纵向足中刚度之间的交叉轴耦合来增加刚度。然而，我们目前缺乏这一假说的体内试验。这种测试是至关重要的，因为肌肉收缩在很大程度上调节MLA功能，也可能影响TTA预测的交叉轴耦合。在这里，我们展示了在活体证据，实质性的交叉轴耦合在站立的人类受试者。我们发现，使用弹性带时，纵向中足弯曲刚度随横向前足刚度的增加而增加（平均$\pm$标准误差=$76\%\pm19\%$,P=0.0002),从而支持了TTA假说。交叉轴耦合可能是一些足部疾病的潜在治疗靶点，并有助于增强运动时的足僵硬度。
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英文标题：
《Transverse contributions to the longitudinal stiffness of the human foot》
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作者：
Ali Yawar, Lucia Korpas, Shreyas Mandre and Madhusudhan Venkadesan
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最新提交年份：
2021
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分类信息：

一级分类：Physics        物理学
二级分类：Biological Physics        生物物理学
分类描述：Molecular biophysics, cellular biophysics, neurological biophysics, membrane biophysics, single-molecule biophysics, ecological biophysics, quantum phenomena in biological systems (quantum biophysics), theoretical biophysics, molecular dynamics/modeling and simulation, game theory, biomechanics, bioinformatics, microorganisms, virology, evolution, biophysical methods.
分子生物物理、细胞生物物理、神经生物物理、膜生物物理、单分子生物物理、生态生物物理、生物系统中的量子现象（量子生物物理）、理论生物物理、分子动力学/建模与模拟、博弈论、生物力学、生物信息学、微生物、病毒学、进化论、生物物理方法。
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一级分类：Quantitative Biology        数量生物学
二级分类：Other Quantitative Biology        其他定量生物学
分类描述：Work in quantitative biology that does not fit into the other q-bio classifications
不适合其他q-bio分类的定量生物学工作
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英文摘要：
  Humans rely on the foot's stiffness to withstand the propulsive forces of walking and running. The medial longitudinal arch (MLA) and the transverse tarsal arch (TTA) are key adaptations that increase the human midfoot's longitudinal bending stiffness. The TTA is hypothesized to increase stiffness through a cross-axis coupling between transverse tissue stiffness and longitudinal midfoot stiffness. However, we currently lack in vivo tests of this hypothesis. Such tests are crucial because muscle contraction considerably modulates MLA function and may also affect the TTA's predicted cross-axis coupling. Here we show in vivo evidence for substantial cross-axis coupling in standing human subjects. We found that longitudinal midfoot bending stiffness increased upon increasing transverse forefoot stiffness using an elastic tape (mean$\pm$standard error = $76\% \pm 19\%$, p=0.0002), thus supporting the TTA hypothesis. The cross-axis coupling could be a potential therapeutic target for some foot disorders and help augment foot stiffness for athletics.
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PDF链接：
https://arxiv.org/pdf/1706.04610