scholarly journals Foot Function Determination: Agreement Between Tests?

2021 ◽  
Author(s):  
Damien Dodelin ◽  
Claire Tourny ◽  
Maxime L’Hermette
Keyword(s):  
Center Of Pressure ◽  
Dynamic Test ◽  
Standing Position ◽  
Kappa Coefficient ◽  
Musculoskeletal Injuries ◽  
Static Testing ◽  
Foot Posture ◽  
Foot Pronation ◽  
Foot Function ◽  
Level Of Agreement

Abstract Background: Foot pronation is generally linked to musculoskeletal injuries, especially in relation to joint deviation caused by pronation during dynamic activities. However, no consensus appeared in the methodological way to determine foot function, and several tests propose to identify foot pronation under different conditions, from static testing to running. The aim of this study was to determine the level of agreement between different foot function classification measures. Methods: One hundred and six subjects completed 5-foot function tests at standing position, walking and running. Foot Posture Index (FPI) was undertaken to determine foot function during static posture. The Center of Pressure Excursion Index (CPEI) and 3 Foot Balance tests (FBs) were realized during walking and running trials to assess pronation during dynamic activities. Agreement between the measures was determined using the Cohen’s Kappa coefficient (K) between 2 measures and the Fleiss Kappa (FK) between 3 or more measures. Results: Overall agreement between the measures reported a fair agreement (Kf = 0.2). Static and walking foot tests determination agreement was moderate (K = 0.5), while agreement between FPI and FBs tests were fair (K < 0.4). Fair results were also reported between walking and running tests (K < 0.4). The concordance between running tests classification was fair (Kf = 0.2). Conclusions: The lack of agreement between tests confirms the need for a consensus on an appropriate measurement of the foot function. Static foot tests are mainly used to determine foot function during dynamic activities. However, the lack of agreement between tests could question the relevance of the static foot function assessments. The FPI reported a moderate agreement with the walking classification test, but it should be accompanied by a dynamic test in order to limit the risk of misinterpretation.

scholarly journals Reliability and Repeatability of Pressure Center Analysis with Low-Dye Taping Using Force Platform Podiatry Sensors in Feet with Excessive Pronation

2021 ◽  
Vol 18 (6) ◽  
pp. 3265
Author(s):  
Óscar Madruga-Armada ◽  
Ricardo Becerro-de-Bengoa-Vallejo ◽  
Marta Elena Losa-Iglesias ◽  
Cesar Calvo-Lobo ◽  
David Rodriguez-Sanz ◽  
...  
Keyword(s):  
Observational Study ◽  
Center Of Pressure ◽  
Force Platform ◽  
P Value ◽  
Pressure Center ◽  
Anova Test ◽  
Foot Pronation ◽  
Foot Function ◽  
First Session

Background: The analysis of the center of pressure (COP) is a method used to assess the foot function, but its reliability and repeatability have not been evaluated. COP can be altered by diverse conditions, like an excessive foot pronation. Low-Dye taping is commonly used for the treatment of symptoms related to an excessive pronation. To date, no study has evaluated the effects of the Low-Dye taping on COP and the duration of its effects. Thus, the main purpose of this manuscript was to assess the reliability and repeatability of the percentage of center of pressure locus area (%CLA) in feet with an excessive pronation, and secondarily, to assess that the Low-Dye taping modifies the %CLA during the immediate 48 h. Methods: An observational study of the reliability and repeatability of the %CLA variable with the Low-Dye taping in feet with excessive pronation was carried out. We used the EPS-Platform to evaluate the results of the variable in 6 conditions in a first session to evaluate the reliability of the results. We compared the results of the first session with the results in a second session to evaluate the repeatability of the results. We also carried out an ANOVA test to evaluate the changes that the taping produced in the variable between without taping with the rest of the 6 conditions. Results: For the %CLA, we observed a reliability greater than 0.80, measured by the interclass ratio index, both in the first session before taping, and in the second session before taping, thus being a repeatability variable. In the following times, with taping, at 10 min with tape, at 20 min with tape, at 24 h with tape and at 48 h with tape; an interclass ratio coefficient (ICC) higher than 0.80 was again obtained, thus being a reliable variable in all measurements made. The Low-Dye taping did not change %CLA from the time the tape was put in until 48 h (p-value = 1.000). Conclusions: The %CLA variable, in feet with excessive pronation, proved to be a reliable variable in all the measurements obtained before putting on the tape and during the following 48 h with the tape, and a repeatable variable. The Low-Dye taping did not change the %CLA from the time the tape was put in until 48 h.

Load Testing to Collapse Limit State of Barr Creek Bridge

2000 ◽  
Vol 1696 (1) ◽  
pp. 92-102 ◽  
Author(s):  
Nicholas Haritos ◽  
Anil Hira ◽  
Priyan Mendis ◽  
Rob Heywood ◽  
Armando Giufre
Keyword(s):  
Finite Element ◽  
Failure Modes ◽  
Flexural Rigidity ◽  
Load Capacity ◽  
Limit State ◽  
Dynamic Test ◽  
Service Condition ◽  
Flat Slab ◽  
Testing Program ◽  
Static Testing

VicRoads, the road authority for the state of Victoria, Australia, has been undertaking extensive research into the load capacity and performance of cast-in-place reinforced concrete flat slab bridges. One of the key objectives of this research is the development of analytical tools that can be used to better determine the performance of these bridges under loadings to the elastic limit and subsequently to failure. The 59-year-old Barr Creek Bridge, a flat slab bridge of four short continuous spans over column piers, was made available to VicRoads in aid of this research. The static testing program executed on this bridge was therefore aimed at providing a comprehensive set of measurements of its response to serviceability level loadings and beyond. This test program was preceded by the performance of a dynamic test (a simplified experimental modal analysis using vehicular excitation) to establish basic structural properties of the bridge (effective flexural rigidity, EI) and the influence of the abutment supports from identification of its dynamic modal characteristics. The dynamic test results enabled a reliably tuned finite element model of the bridge in its in-service condition to be produced for use in conjunction with the static testing program. The results of the static testing program compared well with finite element modeling predictions in both the elastic range (serviceability loadings) and the nonlinear range (load levels taken to incipient collapse). Observed collapse failure modes and corresponding collapse load levels were also found to be predicted well using yield line theory.

scholarly journals Custom-Made Foot Orthoses as Non-Specific Chronic Low Back Pain and Pronated Foot Treatment

2021 ◽  
Vol 18 (13) ◽  
pp. 6816
Author(s):  
Aurora Castro-Méndez ◽  
Inmaculada Concepción Palomo-Toucedo ◽  
Manuel Pabón-Carrasco ◽  
Javier Ramos-Ortega ◽  
Juan Antonio Díaz-Mancha ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Chronic Low Back Pain ◽  
Control Group ◽  
Foot Orthoses ◽  
Low Back ◽  
Custom Made ◽  
Foot Posture ◽  
Foot Pronation ◽  
Pain Symptoms

Excessive foot pronation has been reported as being related to chronic low back pain symptoms and risk factors in sports-specific pathologies. Compensating custom-made foot orthotics treatment has not been entirely explored as an effective therapy for chronic low back pain (CLBP). This study aims to observe the effects of custom-made foot orthoses, in subjects with foot pronation suffering from CLBP. A total of 101 patients with nonspecific CLBP and a pronated foot posture index (FPI) were studied. They were randomized in two groups: an experimental one (n = 53) used custom-made foot orthotics, and the control group (n = 48) were treated with non-biomechanical effect orthoses. The CLBP was measured using the Oswestry Disability Index (ODI) Questionnaire and a visual analogue scale (VAS), both for lower back pain. The symptoms were evaluated twice, at first when the subject was included in the study, and later, after 4 weeks of treatment. The analysis of outcomes showed a significant decrease in CLBP in the custom-made foot orthoses participants group (p < 0.001 ODI; p < 0.001 VAS). These findings suggest that controlling excessive foot pronation by using custom-made foot orthoses may significantly contribute to improving CLBP.

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 Devotionalism in Diversity: The Islamic Paradigm in Multiculturalism in Langsa-Aceh Indonesia

2019 ◽  
Vol 3 (2) ◽  
pp. 112
Author(s):  
Iqbal Ibrahim
Keyword(s):  
Higher Education ◽  
Urban Areas ◽  
Kappa Coefficient ◽  
Islamic Education ◽  
Primary Data ◽  
Religious Leaders ◽  
Muslim Students ◽  
Mathematical Equations ◽  
Depth Interviews ◽  
Level Of Agreement

This article is the result of a study that discusses the paradigm of Langsa Aceh scholars (Islamic scholars) to overcome multiculturalism. This study also reveals the consistency of the agreement of Islamic scholars regarding exclusivity and inclusiveness; prevent the emergence of radicalism in the Islamic community, especially the urban areas of Langsa in Aceh. It discusses the phenomenon of recent recruitment by "brainwashing" in younger students because they filled with certain radicalistic ideologies. The teachings of Islamic education are more about claiming the truth of the religion itself and consider religion as the only one to achieve salvation (emphasizing claims of self-truth and safety). This research is qualitative with a descriptive-analytical application. Primary data obtained from in-depth interviews with sources of religious leaders, lecturers of Islamic Higher Education, teachers, non-Muslim students, and community elements. Reliability of piety in diversity and the paradigm of multiculturalism converted to statistical equations. Mathematical equations applied to the Cohen Kappa coefficient (a measure of authenticity) and measured between exclusivity and inclusiveness with the claims of self-righteousness and the safety paradigm of Islamic scholars. The level of agreement between the instruments assessed illustrates the reliability between assessors -IRR- the results of the informant's interview level of consensus are identified between the safety of the results of the consistency of the contract between piety and exclusivity, because self-claims show "lack" (kappa, 0.20-0.41) , while the agreement between service and safety is "very good" (kappa 0.81-0.90). With inter-assessor reliability, K = 0.89 with an extraordinary category.

Postural Control Profiles of Typically Developing Children From 6 to 12 Years old: An Approach Using Self-Organizing Maps

2020 ◽  
Vol 8 (1) ◽  
pp. 52-66 ◽  
Author(s):  
Xavier García-Massó ◽  
Isaac Estevan ◽  
Roberto Izquierdo-Herrera ◽  
Israel Villarrasa-Sapiña ◽  
Luis-Millan Gonzalez
Keyword(s):  
Postural Control ◽  
Visual Information ◽  
High Stability ◽  
Center Of Pressure ◽  
Standing Position ◽  
Self Organizing Map ◽  
Typically Developing ◽  
Typically Developing Children ◽  
Time Frequency ◽  
Self Organizing

The purposes of the present study were a) to establish postural control profiles for individuals 6–12 years of age, b) to analyze the participants’ characteristics (age, sex, weight, height, and physical activity) in those profiles, and c) to analyze the influence of visual information in the profiles found. Two hundred and eight typically developing children aged 6–12 years performed two trials in bipedal standing position with eyes open and closed. Feature extraction involved time, frequency, and sway-density plot variables using signals from the center of pressure. A Self-Organizing Map was used to classify and visualize the values of the participants in all the postural control variables tested. A k-means cluster analysis was applied to generate a small number of postural control profiles. The results determined six postural control profiles; three with participants denoting high stability and three considered as low stability profiles. Age, sex, and height were related to the postural control profiles. Boys were more frequently allocated in high stability clusters than girls, while the other factors yielded unclear difference between high and low stability profiles. The analysis of children’s profiles reflecting postural stability should therefore involve more than one factor including the individuals’ age, sex, and height.

scholarly journals Foot posture and dynamic foot function in people with and without knee osteoarthritis

2017 ◽  
Vol 25 ◽  
pp. S131-S132 ◽  
Author(s):  
E. Anzai ◽  
K. Yamashita ◽  
Y. Matsunaga ◽  
M. Sato ◽  
H.B. Menz ◽  
...  
Keyword(s):  
Knee Osteoarthritis ◽  
Foot Posture ◽  
Foot Function

scholarly journals Foot posture, foot function and low back pain: the Framingham Foot Study

2013 ◽  
Vol 6 (S1) ◽  
Author(s):  
Hylton B Menz ◽  
Alyssa B Dufour ◽  
Jody L Riskowski ◽  
Howard J Hillstrom ◽  
Marian T Hannan
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Low Back ◽  
Foot Posture ◽  
Foot Function

Effect of Cardiovascular Fatigue on Postural Stability

2013 ◽  
Vol 18 (5) ◽  
pp. 38-40 ◽  
Author(s):  
Hamid Bateni ◽  
Gina Leno ◽  
Rebeca Manjarres ◽  
Bailey Ouellette ◽  
Mark Wolber
Keyword(s):  
Outcome Measures ◽  
Repeated Measures ◽  
Postural Stability ◽  
Postural Sway ◽  
Center Of Pressure ◽  
Standing Position ◽  
Treadmill Running ◽  
Upper Body ◽  
Mean Square Distance ◽  
Squat Jumps

Context:Previous research has demonstrated that localized leg muscle fatigue induced by lower extremity exercises (e.g., squat jumps, sprints, and treadmill running) has an adverse effect on postural stability.Objective:To assess the effect of cardiovascular fatigue induced by upper extremity exercise on postural stability.Design:Repeated measures.Participants:Fourteen healthy young adults between the ages of 22 and 30 years (7 male and 7 female).Intervention:Participants performed an exercise protocol on an upper-body ergometer to induce cardiovascular fatigue.Main Outcome Measures:Postural sway, represented by center of pressure excursion, during bilateral standing in two different foot positions.Results:In a tandem standing position, mediolateral mean distance, root mean square distance, resultant power, and centroidal frequency increased signifcantly after inducement of cardiovascular fatigue.Conclusion:Cardiovascular fatigue adversely affects postural stability.

scholarly journals Un modelo de regresión logística para evaluar la prevalencia del síndrome metabólico en la población general, Mérida, Venezuela

2015 ◽  
Vol 3 (1) ◽  
pp. 22-28
Author(s):  
Erasmo Rafael Salazar ◽  
Luis Antonio Nava Puente ◽  
Douglas Edwin Rivas Olivo ◽  
Alejandro Ramón González Benítez ◽  
Xiomara Josefina Maldonado Quintero
Keyword(s):  
Metabolic Syndrome ◽  
Sedentary Lifestyle ◽  
Kappa Coefficient ◽  
High Agreement ◽  
Síndrome Metabólico ◽  
Las Mujeres ◽  
Para Determinar ◽  
The City ◽  
Level Of Agreement

Introducción: Esta investigación ajusta un modelo para la prevalencia del Síndrome Metabólico y, evalúa el nivel de acuerdo en la clasificación de la población general, área metropolitana, municipio Libertador de la ciudad de Mérida, Venezuela, 2005, según las variables PREV1 y PREV2, diseñadas empleando criterios de NCPE-ATP III. Materiales y Métodos: Se propone el uso del coeficiente kappa de Cohen para medir dicho acuerdo. Se emplea el procedimiento propuesto por Nava y Sinha (2007), para ajustar un modelo de regresión logística que relaciona la prevalencia de Síndrome Metabólico (SM), también conocido como Síndrome X, con las variables sexo, talla, peso, índice de masa corporal (IMC), alcohol, tabaco, sedentarismo, glucosa, HDL, triglicéridos, obesidad, clase social, edad y estado civil; considerando información referente a un grupo de 275 habitantes. Resultados discusión: Los resultados indican que las variables relacionadas en forma significativa con la presencia de SM son sexo, IMC, glucosa, HDL, triglicéridos y edad. Glucosa, HDL, triglicéridos e índice de masa corporal corregido, son variables que incrementan en forma significativa las posibilidades de prevalencia de SM. Conclusiones: Se concluye, que las mujeres tienen mayores posibilidades que los hombres de presentar SM; el valor obtenido para el coeficiente kappa de Cohen, indica que existe un alto acuerdo en la clasificación de los individuos considerados en la investigación según las variables PREV1 y PREV2, es decir, cualquiera de esas variables puede usarse para determinar la prevalencia de SM.Introduction: This research sets a model for the prevalence of Metabolic Syndrome and evaluates the level of agreement in the classification of the general population, metropolitan area, Libertador municipality of the city of Mérida, Venezuela, 2005, according to variables PREV1 and PREV2, designed using the criteria of theNCPEATPIII. Materials and methods: We propose the use of Cohen’s kappa coefficient to measure this deal. This paper uses the proposed procedure by Nava and Sinha (2007), to fit a logistic regression model that relates the prevalence of metabolic syndrome (MS) or syndrome X, with the variables sex, height, weight, CBMI, alcohol, snuff, sedentary lifestyle, glucose, HDL, triglycerides, obesity, social class, age and marital status, considering information on a group of 275 people. Results and discussion: Results shows that the variables significantly associated with the presence of MS are sex, CBMI, glucose, HDL, triglycerides and age. Glucose, HDL, triglycerides and CBMI, are variables that increases significantly the chances of prevalence of MS. Conclusions: We conclude that women are more likely than men to have SM; the value obtained for the Cohen kappa coefficient, indicate a high agreement on the classification of individuals considered in the investigation according to the variables PREV1 and PREV2, i.e. any of these variables can be used to determine the prevalence of MS.

Sign in / Sign up

Export Citation Format

Share Document