Experimental and Theoretical Predictions of Static Plantar Pressure of Socks with Different Stitch Lengths.

IF 0.5 4区 医学 Q4 ORTHOPEDICS Journal of the American Podiatric Medical Association Pub Date : 2024-03-01 DOI:10.7547/22-008
Zeynab Soltanzadeh, Saeed Shaikhzadeh Najar, Somayeh Khazaei
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Abstract

Background: Socks are mainly used to give the foot more comfort while wearing shoes. Stitch density of the knitted fabric used in socks can significantly affect the sock properties because it is one of the most important fabric structural factors influencing the mechanical properties. Continuous plantar pressures can cause serious damage, particularly under the metatarsal heads, and it is deduced that using socks redistributes and reduces peak plantar pressures. If peak pressure under the metatarsal heads is predicted, then it will be possible to produce socks with the best mechanical properties to reduce the pressure in these critical areas.

Methods: Plain knitted socks with three different stitch lengths (high, medium, and low) were produced. Static plantar pressure measurements by the Gaitview system were accomplished on ten women and then compared with the barefoot situation. Also, the peak plantar pressure of three types of socks under the metatarsal heads are theoretically predicted using the Hertz contact theory.

Results: Experimental results indicate that all socks redistribute the plantar pressure from high to low plantar pressure regions compared with barefoot. In particular, socks with high stitch length have the best performance. By increasing the stitch length, we can significantly reduce the peak plantar pressure of the socks. Correspondingly, the Hertz contact theory resulted in a trend of mean peak pressure reductions in the forefoot region similar to the socks with different stitch densities.

Conclusions: The theoretical results show that by using the Hertz contact theory, static plantar pressure in the forefoot region can be well predicted at a mean error of approximately 9% compared with the other experimental findings.

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不同缝线长度袜子的静态足底压力的实验和理论预测。
背景:袜子主要用于在穿鞋时给脚部带来更多舒适感。袜子所用针织物的针脚密度会对袜子的性能产生重大影响,因为它是影响袜子机械性能的最重要的织物结构因素之一。持续的足底压力会造成严重的损伤,尤其是在跖骨头下。如果能预测跖骨头下的峰值压力,就有可能生产出具有最佳机械性能的袜子,以减少这些关键部位的压力:方法:生产三种不同针脚长度(高、中、低)的平纹针织袜。通过 Gaitview 系统对十名女性进行了静态足底压力测量,并与赤足情况进行了比较。此外,还利用赫兹接触理论对三种袜子在跖骨头下的足底压力峰值进行了理论预测:实验结果表明,与赤足相比,所有袜子都能将足底压力从高压力区重新分配到低压力区。尤其是缝合线长的袜子性能最佳。通过增加缝合长度,我们可以显著降低袜子的足底压力峰值。与此相对应,赫兹接触理论得出的结果是,前脚掌区域的平均峰值压力降低趋势与不同针脚密度的袜子相似:理论结果表明,利用赫兹接触理论可以很好地预测前脚掌区域的静态足底压力,与其他实验结果相比,平均误差约为 9%。
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来源期刊
CiteScore
1.10
自引率
0.00%
发文量
128
审稿时长
6-12 weeks
期刊介绍: The Journal of the American Podiatric Medical Association, the official journal of the Association, is the oldest and most frequently cited peer-reviewed journal in the profession of foot and ankle medicine. Founded in 1907 and appearing 6 times per year, it publishes research studies, case reports, literature reviews, special communications, clinical correspondence, letters to the editor, book reviews, and various other types of submissions. The Journal is included in major indexing and abstracting services for biomedical literature.
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