足外翻对健康儿童行走状态下足底负荷模式的影响

doi:10.19677/j.issn.1004-7964.2023.02.011

Leather Science and Engineering ›› 2023, Vol. 33 ›› Issue (2): 69-74.doi: 10.19677/j.issn.1004-7964.2023.02.011

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The Effect of Foot Pronation on Plantar Load Pattern of Healthy Children under Walking Condition

YANG Luming^1,2,3, LIU Yuan², ZHENG Debin^1,3, LIU Qingyun², YAN Shiyang^{4, *}

1. National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China;
2. College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China;
3. Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065;
4. Polymer Research Institute, Sichuan University, Chengdu 610065, China

Received:2022-07-12 Published:2023-04-01 Online:2023-03-21

Abstract

Abstract: This study aims to explore the effect of the pronated foot on the dynamic plantar load pattern of healthy children. This work can provide valid data for the insole/outsole design of daily-wearing shoes for pronation correction. The Footscan^R plantar pressure system was used to collect the plantar load of 347 typically developing children aged 7-8 during barefoot walking. According to the foot pronation assessment, arch index and BMI, children with obesity or flatfoot were excluded. Finally, 60 children (26 boys and 34 girls) with the pronated foot were identified as the experimental group. Additionally, 60 children whose height and weight matched the experimental group were indentified as the control group. The maximum force, peak pressure, and pressure-time integral of the same gender were conducted the statistical analyses. The results showed that foot pronation had different effects on boys and girls. It aggravated the uneven distribution of plantar load in children. Concerning boys, pronated foot displayed significantly greater maximum forces in the phalangeal and the medial forefoot areas. An upward trend of peak pressure was observed in the medial forefoot and the midfoot areas; the pronated foot displayed significantly greater pressure-time integral in the lateral heel and the first phalanx. Concerning girls, an upward trend of maximum force was observed in the phalanxes and medial forefoot. Pronated foot displayed significantly decreased peak pressure in the phalangeal. It displayed significantly greater pressure-time integral in the forefoot/midfoot.

Key words: foot pronation, children, plantar pressure disribution

CLC Number:

TS943.1

YANG Luming, LIU Yuan, ZHENG Debin, LIU Qingyun, YAN Shiyang. The Effect of Foot Pronation on Plantar Load Pattern of Healthy Children under Walking Condition[J]. Leather Science and Engineering, 2023, 33(2): 69-74.

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The Effect of Foot Pronation on Plantar Load Pattern of Healthy Children under Walking Condition

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