Image analysis system for acquiring three-dimensional contour of foot arch during balanced standing

Lin, Che-Kuang; Chen, Jia-Jin Jason; Wu, Chau-Chung; Lee, Hsiao-Yu; Liu, Yuh-Hwan

doi:10.1016/j.cmpb.2003.12.003

Cited by 10 publications

(6 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In this study, our approach was first to integrate our previous footprint image acquisition system (Lin et al 2004) with sway area measurement. The footprint was obtained using the digital imaging technique under balanced standing when equal weight loading on both feet was detected.…”

Section: Discussionmentioning

confidence: 99%

Development of a quantitative assessment system for correlation analysis of footprint parameters to postural control in children

et al. 2005

Self Cite

View full text Add to dashboard Cite

It is known that neurological impairments impact postural stability, but few studies have observed the biomechanical influence of foot structure on balance. The aim of this study was to develop an integrated device for investigating the relationship between static balance and the foot structure, derived from a footprint image, under clinical tests of sensory interactions. Quantitative analysis of the footprint image acquired during balanced standing was developed as an indirect measure of the longitudinal arch, an important structural component of the foot. A data pool was collected from 64 children, 32 children from each of two age groups (4-5 years old versus 8-10 years old). Six common footprint parameters derived from the footprint angle or contact area were used to investigate the relationship between footprint parameters and postural stability. Postural balance ability was evaluated by analyzing sway area in posturography under visual or somatosensory confliction conditions. The footprint parameters, derived from the footprint image, inter-correlated well with each other (p < 0.01). The relationships between footprint parameters and sway area were correlated only for younger children under visually deprived (eye close) and cutaneous unreliable (standing on compliant foam) conditions. This implies that the correlations between footprint parameters and sway area are very subtle which can only be observed in unreliable visual and somatosensory conditions of younger children. In addition, younger children with a lower arch height would have a smaller sway area and better posture control which might result from more cutaneous somatosensation or a flexible biomechanical structure in low arch feet during conditioned static standing.

show abstract

Section: Discussionmentioning

confidence: 99%

Development of a quantitative assessment system for correlation analysis of footprint parameters to postural control in children

et al. 2005

Self Cite

View full text Add to dashboard Cite

show abstract

“…There are two main functions for the foot during walking: a passive function which protects the human body from impact forces and an active function to transfer internal forces to the ground [1]. The foot arch is important in lifting the body weight and shock absorption, which makes the arch a very important factor on walk and run safety, thus making direct in luence on the biomechanics of an individual in case of any change [2].…”

Section: Introductionmentioning

confidence: 99%

Foot Arch Differences in Elderly People at Standing: Considering Gender and Age

Bertani¹,

Soares²,

Rocha³

et al. 2017

J Nov Physiother Rehabil

View full text Add to dashboard Cite

Background:The foot is an important and complex structure that provides support, balance and propulsion to locomotion, thus, its proper care can help to have a better life quality avoiding pain. The medial longitudinal arch is an important structure that is related to injury risks when it shows some impairment. The purpose of this study was to characterize the foot arch index in people in relation to age and gender. Methods:The sample was composed of a total of 122 subjects, 79 healthy young subjects (40 women and 39 men) and 43 healthy elderly subjects (32 women and 11 men). Ten seconds of standing barefoot plantar pressure was measure through Tekscan F-Scan device, and the data processing, fi ltering, and arch index (AI) calculation were performed using MATLAB™ 7.0. Findings:The elderly group presented a lower arch (AI-0.23) than the young group (AI-0.13) (p=0.000); young female and male groups show similar AI, while the elderly female group showed lower arch (AI-0.23) than the elderly male group (AI-0.18) (p=0.033). Interpretation:The foot arch has a trend to be lower with aging, and even lower within elderly female subjects, probably due to some decrease within plantar muscle's stiffness, that in turn may be related to lower physical activity and footwear choices.

show abstract

“…Lin et al 19 observaram em seu estudo sobre o perfil do arco do pé durante a posição equilibrada que, a anormalidade do arco do pé pode afetar as funções devido à entrada somatossensorial inadequada. Os autores ressaltam que crianças com pés planos geralmente apresentam um andar desajeitado, o que pode resultar em falta de equilíbrio e fazer com que caiam facilmente.…”

Section: Discussionunclassified

Relação do Índice do Arco Plantar com o Equilíbrio Postural

Dorneles¹,

Meereis²,

Pranke³

et al. 2014

R. Bras. Ci. e Mov.

View full text Add to dashboard Cite

RESUMO: O presente estudo tem como objetivo analisar a relação do índice do arco plantar com o equilíbrio postural em mulheres jovens. Participaram do estudo 23 mulheres jovens e saudáveis. Para o cálculo do índice do arco plantar (IAP) utilizou-se o método de impressão plantar, através de um pedígrafo. Para os dados referentes ao equilíbrio postural foi utilizada uma plataforma de força AMTI, as variáveis utilizadas foram: amplitude de deslocamento ânteroposterior do centro de pressão (COPap), amplitude de deslocamento médio-lateral do COP (COPml), velocidade média de deslocamento do COP (COPvel) e área da elipse (elipse). Os resultados apontam correlações positivas e moderadas entre duas variáveis do COP (velocidade e área da elipse) e o IAP na condição de olhos fechados, indicando que quanto maior o índice do arco plantar (tendência a pé plano) maior será a oscilação corporal dessas jovens. Concluiu-se que indivíduos que possuem maior rebaixamento do arco longitudinal medial, ou seja, maior IAP, apresentam maior oscilação postural.

show abstract

Image analysis system for acquiring three-dimensional contour of foot arch during balanced standing

Cited by 10 publications

References 25 publications

Development of a quantitative assessment system for correlation analysis of footprint parameters to postural control in children

Development of a quantitative assessment system for correlation analysis of footprint parameters to postural control in children

Foot Arch Differences in Elderly People at Standing: Considering Gender and Age

Relação do Índice do Arco Plantar com o Equilíbrio Postural

Contact Info

Product

Resources

About