Effect of Foot Morphology on Center-of-Pressure Excursion During Barefoot Walking

2008 ◽  
Vol 98 (2) ◽  
pp. 112-117 ◽  
Author(s):  
Lilian Wong ◽  
Adrienne Hunt ◽  
Joshua Burns ◽  
Jack Crosbie
Keyword(s):  
Regional Differences ◽  
Center Of Pressure ◽  
Pressure Data ◽  
Lateral Border ◽  
Foot Posture Index ◽  
Posture Index ◽  
Foot Posture ◽  
Foot Morphology ◽  
The Relationship

Background: The path of the center of pressure during walking varies among individuals by deviating to a greater or lesser extent toward the medial or lateral border of the foot. It is unclear whether this variance is systematic and is affected by foot posture. The aim of this study was to explore the relationship between foot morphology and center-of-pressure excursion during barefoot walking. Methods: Pressure data were collected from 83 participants whose foot type had been classified as supinated, normal, or pronated according to the Foot Posture Index. Three center-of-pressure variables were analyzed: medial excursion area, lateral excursion area, and total excursion area. Results: Across the spectrum of foot types, we found that the more supinated a participant’s foot posture, the larger the area of lateral center-of-pressure excursion, and, conversely, the more pronated the foot posture, the smaller the area of lateral center-of-pressure excursion. Furthermore, the supinated foot type had a relatively larger center-of-pressure total excursion area, and the pronated foot type had a relatively smaller center-of-pressure total excursion area. Conclusions: These results indicate the importance of assessing foot posture when measuring center of pressure and may help explain regional differences in pain and injury location among foot types. (J Am Podiatr Med Assoc 98(2): 112–117, 2008)

scholarly journals Association between Foot Posture Index and Ankle Sprain in Indoor Football Players

2016 ◽  
Vol 8 (10) ◽  
pp. 160 ◽  
Author(s):  
Afsaneh Safar Cherati ◽  
Masoud Dousti ◽  
Shima Younespour
Keyword(s):  
Ankle Sprain ◽  
Football Players ◽  
Male And Female ◽  
Positive History ◽  
Foot Posture Index ◽  
Posture Index ◽  
Foot Posture ◽  
History Of ◽  
The Relationship

<p><strong>Objective</strong><strong>: </strong>This study investigated the relationship between foot type and ankle sprain incidence.</p><p><strong>Method</strong><strong>: </strong>In a prospective cohort study using the FPI, 68 adult male and female indoor football (Futsal) players were measured and their feet were classified according to foot posture index (FPI) as neutral, supinated and pronated. They were followed over 6 month as a one competition season and at the end, any injuries at the ankle during this period were detected.</p><p><strong>Result</strong><strong>: </strong>There was no significant association between FPI score (considering the total FPI score and its six components) and occurrence of ankle sprain. Also, no association was existed between gender, age, height, weight, BMI, duration of professional exercise, dominant foot and occurrence of ankle sprain. In this study, the history of previous ankle sprain was the only significant predictor of the occurrence of ankle sprain in the follow-up period. Participants with the positive history of previous ankle sprain were at higher risk of developing new ankle sprain (OR=6.02, 95% CI: (1.93, 18.84), p=0.002).</p><p><strong>Conclusion</strong><strong>: </strong>There was no significant association between FPI score and occurrence of ankle sprain.<strong></strong></p><p><strong>Limitation: </strong>there was scarce of supinated foot in the study so evaluation of relationship between supinated feet and ankle sprain was not applicable.</p>

scholarly journals A Comparison of Arch Index, Foot Posture Index and Surgeon Observation for Foot Type Classification

2020 ◽  
Vol 5 (4) ◽  
pp. 2473011420S0031
Author(s):  
Dukens LaBaze ◽  
Alexandra Gabrielli ◽  
William Anderst ◽  
MaCalus V. Hogan
Keyword(s):  
Small Sample Size ◽  
Quantitative Measure ◽  
Small Sample ◽  
Foot Posture Index ◽  
Inferior Surface ◽  
Posture Index ◽  
Foot Posture ◽  
Foot Morphology ◽  
Qualitative Measure ◽  
Arch Index

Category: Basic Sciences/Biologics Introduction/Purpose: Foot morphology is a key aspect of patient evaluation. Individuals with Pes planus usually have medial foot pain; those with Pes Cavus commonly have pain over lateral foot. Foot Posture Index (FPI) is a qualitative measure that uses six specific physical exam parameters. Arch index (AI) is a quantitative measure in which the footprint is photographed and measured. Radiographs allow for visualization of the bone and used to directly measure parameters of foot morphology such as calcaneal pitch (CP). The purpose of this study was to determine the sensitivity and specificity of surgeon observation, FPI, and AI in determining foot type, with CP serving as the reference standard. Our hypothesis is that surgeon observation will be more sensitive and specific than FPI and AI for identifying foot type. Methods: Following institutional review board approval and informed consent, we examined 41 adults (82 Feet) (average age 37.8+-17.6 yrs.; range: 20 to 68 years old; 20F/21M) without history of prior foot or ankle injury. Subject evaluation included bilateral FPI exam, lateral and hindfoot standing radiographs, pedographs, and weightbearing photographs. Three authors were trained to perform standardized FPI assessments. The radiographs and photographs were presented in a randomized order to a board-certified foot and ankle orthopaedic surgeon to classify a foot as either planus, cavus or normal (Figure 1). Calcaneal pitch was measured for each foot by finding the angle between the inferior surface of the calcaneus and the supporting surface, with normal classified as 18°-32°, planus <18° and, and cavus>32°[2,3]. Arch index was calculated for each foot from pedograph, with normal classified as 0.21 to 0.28, planus < 0.21 and cavus >0.28. Results: The gold standard calcaneal pitch measurements identified 12 planus, 57 normal, and 13 cavus feet. Surgeon observation was the most sensitive for identifying planus feet and most specific for identifying cavus feet (Table 1). Arch index was the most sensitive for identifying cavus feet and most specific for identifying both planus and normal feet. FPI was most sensitive for identifying normal feet. The correlation between raw scores on the FPI and AI to CP were weak to moderate, -0.387 and -0.526, respectively (p<0.01). Conclusion: Surgeon observation is the only method that had a sensitivity over 0.50 for two different foot morphologies. FPI does not have the highest specificity for any particular foot type; however, a specificity of 0.844 and 0.971 for planus and cavus feet demonstrates that FPI is a suitable modality for evaluating pathologic morphology. Our specificity is close to a prior reported 0.932. These similarities in statistics reassure us that our methods are consistent with prior studies. Limitations of the study include small sample size and a single surgeon reviewing imaging. [Table: see text]

The Relationship Between Wearing Incorrectly Sized Shoes and Foot Dimensions, Foot Pain, and Diabetes

2010 ◽  
Vol 19 (2) ◽  
pp. 214-225 ◽  
Author(s):  
Alessandra Paiva de Castro ◽  
José Rubens Rebelatto ◽  
Thaís Rabiatti Aurichio
Keyword(s):  
Older Adults ◽  
Outcome Measures ◽  
Ankle Pain ◽  
Foot Posture Index ◽  
Posture Index ◽  
Shoe Size ◽  
Foot Length ◽  
Foot Posture ◽  
Arch Index ◽  
The Relationship

Context:Wearing inappropriate shoes can cause biomechanical imbalance, foot problems, and pain and induce falls.Objective:To verify the prevalence of wearing incorrectly sized shoes and the relationship between incorrectly sized shoes and foot dimensions, pain, and diabetes among older adults.Design:A cross-sectional study.Participants:399 older adults (227 women and 172 men) age 60 to 90 y.Main Outcome Measures:The participants were asked about the presence of diabetes, pain in the lower limbs and back, and pain when wearing shoes. Foot evaluations comprised the variables of width, perimeter, height, length, first metatarsophalangeal angle, the Arch Index, and the Foot Posture Index. The data analysis was performed using a 2-sample t test and chi-square test.Results:The percentage of the participants wearing shoe sizes bigger than their foot length was 48.5% for the women and 69.2% for the men. Only 1 man was wearing a shoe size smaller than his foot length. The older adults wearing the incorrect shoe size presented larger values for foot width, perimeter, and height than those wearing the correct size, but there were no significant differences between the groups with respect to the Arch Index and the Foot Posture Index. Incorrectly sized shoes were associated with ankle pain in women but not with diabetes. Men were more likely to wear incorrectly fitting shoes. The use of correctly sized shoes was associated with back pain in women.Conclusions:The use of incorrectly sized shoes was highly prevalent in the population studied and was associated with larger values for foot width, perimeter, and height and with ankle pain.

Effect of Foot Posture and Inverted Foot Orthoses on Hallux Dorsiflexion

2006 ◽  
Vol 96 (1) ◽  
pp. 32-37 ◽  
Author(s):  
Shannon E. Munteanu ◽  
Adam D. Bassed
Keyword(s):  
Negative Correlation ◽  
Metatarsophalangeal Joint ◽  
Significant Negative Correlation ◽  
Foot Orthoses ◽  
First Metatarsophalangeal Joint ◽  
Foot Posture Index ◽  
Posture Index ◽  
Foot Posture ◽  
The Right ◽  
The Relationship

A pronated foot posture is considered to be a factor in limitation of dorsiflexion at the first metatarsophalangeal joint during weightbearing. Customized foot orthoses are widely used to increase dorsiflexion at the first metatarsophalangeal joint in people with pronated feet. However, the effect of foot posture and customized foot orthoses on maximum first metatarsophalangeal joint dorsiflexion has not been widely investigated. This study sought to determine 1) the relationship between foot posture and static maximum first metatarsophalangeal joint dorsiflexion and 2) the effect of customized foot orthoses on static maximum first metatarsophalangeal joint dorsiflexion in people with pronated feet. Foot posture was assessed using the Foot Posture Index. Static maximum first metatarsophalangeal joint dorsiflexion of the right foot was determined using a goniometer while participants stood relaxed with and without Blake-style inverted (30°) foot orthoses positioned under their feet. There was a significant negative correlation between Foot Posture Index and static maximum first metatarsophalangeal joint dorsiflexion (r = −0.587). Inverted (30°) foot orthoses increased the magnitude of static maximum first metatarsophalangeal joint dorsiflexion from 83.4° to 85.3° in participants with an excessively pronated foot posture. However, this difference was not statistically significant. People with pronated feet are more likely to exhibit limitation of dorsiflexion at the first metatarsophalangeal joint during gait, and inverted foot orthoses are unlikely to be effective in increasing dorsiflexion at the first metatarsophalangeal joint in these people. (J Am Podiatr Med Assoc 96(1): 32–37, 2006)

scholarly journals Establishing normative foot posture index values for the paediatric population: a cross-sectional study

2016 ◽  
Vol 9 (1) ◽  
Author(s):  
Gabriel Gijon-Nogueron ◽  
Jesus Montes-Alguacil ◽  
Pilar Alfageme-Garcia ◽  
Jose Antonio Cervera-Marin ◽  
Jose Miguel Morales-Asencio ◽  
...  
Keyword(s):  
Paediatric Population ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Foot Posture Index ◽  
Posture Index ◽  
Foot Posture

Influence of Age, Sex, and Anthropometric Determinants on the Foot Posture Index in a Pediatric Population

2017 ◽  
Vol 107 (2) ◽  
pp. 124-129 ◽  
Author(s):  
Ana María Jimenez-Cebrian ◽  
María Francisca Morente-Bernal ◽  
Pedro Daniel Román-Bravo ◽  
Juan Francisco Saucedo-Badía ◽  
Juan Antonio Alonso-Ríos ◽  
...  
Keyword(s):  
Pediatric Population ◽  
Quantitative Result ◽  
Total Sample ◽  
Clinical Tool ◽  
Foot Posture Index ◽  
Posture Index ◽  
Asymptomatic Children ◽  
Foot Posture ◽  
The Mean ◽  
Foot Position

Background: The Foot Posture Index (FPI) is a clinical tool for diagnosis that aims to quantify the grade of a foot position as neutral, pronated, or supinated. Its purpose is to develop a simple six-factor method for rating foot posture with an easy and quantitative result. We evaluated possible differences in the FPI by sex and the influences of age, weight, height, foot size, and body mass index (BMI) on foot posture. Methods: In 150 asymptomatic children (79 boys and 71 girls) aged 8 to 13 years, we determined weight, height, BMI, and FPI in the bipedal, static, and relaxed position. The FPI was obtained as the sum of the scores (–2, –1, 0, 1, 2) given to each of the six criteria. Results: The mean ± SD FPI value for the total sample was 5.1 ± 2.1 (boys: 5.1 ± 2.2; girls: 5.2 ± 2.0), so there were no significant differences between the sexes (P = .636). Of the 150 feet examined, none had FPI values of very supinated or highly pronated, two were supinated (1.3%), 76 neutral (50.7%), and 72 pronated (48.0%). Of the total FPI values, 7.7% can be explained by anthropometric variables: height, weight, and foot size (r2 = 0.077; P &lt; .010). Conclusions: The most frequent foot postures in the sample were neutral and pronated. Neither age nor BMI explained variations in the FPI.

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