scholarly journals The effect of medial arch support over the plantar pressure and triceps surae muscle strength after prolonged standing

2015 ◽  
Vol 24 (3) ◽  
pp. 146-9 ◽  
Author(s):  
Hindun Saadah ◽  
Deswaty Furqonita ◽  
Angela Tulaar
Keyword(s):  
Muscle Strength ◽  
Contact Area ◽  
Plantar Pressure ◽  
Peak Pressure ◽  
Standing Position ◽  
Triceps Surae ◽  
Prolonged Standing ◽  
Triceps Surae Muscle ◽  
Before And After ◽  
Arch Support

Background: The activity with prolonged standing position is one of the causes of abnormalities in the lower leg and foot. The aim of this study is to discover the effect of medial arch support over the distribution of plantar pressure when standing and walking.Methods: This was an experimental study with pre- and post-design the strength of triceps surae muscle after prolonged standing, was also evaluated in an experimental study with pre- and post-design. Variables of plantar pressure measurement are the contact area and pressure peak were measured by using the Mat-scan tool. The measurement of the triceps surae muscle strength was done with a hand-held dynamometer, before and after using the medial arch support. Measurement was performed before and after working with prolonged standing position which took place about seven hours using the medial arch support inserted in the shoes. Data was analyzed using paired T-test.Results: There was a significant difference of peak pressure between standing (p = 0.041) and walking (p = 0.001). Whereas the contact area showed a significant decrease in the width of the contact area when standing (104.12 ± 12.42 vs 99.08 ± 10.21 p = 0.023). Whereas, the triceps surae muscle strength pre- and post-standing prolonged did not indicate a significant difference.Conclusion: There was decrease in peak pressure when standing and walking and decrease in contact area when standing on plantar after used of the medial arch support after prolonged standing.

Effect of medial arch support foot orthosis on plantar pressure distribution in females with mild-to-moderate hallux valgus after one month of follow-up

2014 ◽  
Vol 39 (2) ◽  
pp. 134-139 ◽  
Author(s):  
Maede Farzadi ◽  
Zahra Safaeepour ◽  
Mohammad E Mousavi ◽  
Hassan Saeedi
Keyword(s):  
Pressure Distribution ◽  
Hallux Valgus ◽  
Plantar Pressure ◽  
Peak Pressure ◽  
Foot Orthoses ◽  
First Metatarsal ◽  
Plantar Pressure Distribution ◽  
Before And After ◽  
Arch Support ◽  
Foot Orthosis

Background:Higher plantar pressures at the medial forefoot are reported in hallux valgus. Foot orthoses with medial arch support are considered as an intervention in this pathology. However, little is known about the effect of foot orthoses on plantar pressure distribution in hallux valgus.Objectives:To investigate the effect of a foot orthosis with medial arch support on pressure distribution in females with mild-to-moderate hallux valgus.Study design:Quasi-experimental.Methods:Sixteen female volunteers with mild-to-moderate hallux valgus participated in this study and used a medial arch support foot orthosis for 4 weeks. Plantar pressure for each participant was assessed using the Pedar-X®in-shoe system in four conditions including shoe-only and foot orthosis before and after the intervention.Results:The use of the foot orthosis for 1 month led to a decrease in peak pressure and maximum force under the hallux, first metatarsal, and metatarsals 3–5 ( p < 0.05). In the medial midfoot region, peak pressure, maximum force, and contact area were significantly higher with the foot orthosis than shoe-only before and after the intervention ( p = 0.00).Conclusion:A foot orthosis with medial arch support could reduce pressure beneath the hallux and the first metatarsal head by transferring the load to the other regions. It would appear that this type of foot orthosis can be an effective method of intervention in this pathology.Clinical relevanceFindings of this study will improve the clinical knowledge about the effect of the medial arch support foot orthosis used on plantar pressure distribution in hallux valgus pathology.

The Effect of Toe Flexion Exercises on Grip

2018 ◽  
Vol 108 (5) ◽  
pp. 355-361 ◽  
Author(s):  
Helen Branthwaite ◽  
Gemma Grabtree ◽  
Nachiappan Chockalingam ◽  
Andrew Greenhalgh
Keyword(s):  
Contact Area ◽  
Plantar Pressure ◽  
Contact Time ◽  
Peak Pressure ◽  
Peak Force ◽  
Time Integral ◽  
Pressure Time ◽  
Flexor Muscles ◽  
Before And After ◽  
Force Contact

Background: Weakness of the toe flexor muscles has been attributed to the development of toe pathologies, and it responds well in the clinic to toe grip exercises. However, it is unknown whether exercising the toe flexor muscles improves the ability to grip and alter function. The aim of this study was to assess the effect of toe flexor exercises on apical plantar pressure, as a measure of grip, while seated and during gait. Methods: Twenty-three individuals with no known toe pathologies were recruited. Static peak pressure, time spent at peak pressure, and pressure-time integral while seated, as well as dynamic forefoot maximal force, contact area, and percentage contact time, were recorded before and after exercise. Toe grip exercises with a therapy ball were completed daily for 6 weeks. Results: Static peak pressure significantly increased after exercise on the apex of the second and third digits, as did the pressure-time integral. Dynamic peak force and contact area did not alter after exercise around the metatarsals and toes, yet percentage contact time significantly increased for each metatarsal after completing daily toe grip exercises. Conclusions: Exercises to improve the grip ability of the toes increased the static peak pressure on the apex of the second and third digits as well as the percentage contact time of the metatarsals during gait. The ability to increase apical peak pressure and contact time after exercises could assist in improving forefoot stability and gait efficiency and in reducing toe pathology progression.

scholarly journals Effectiveness of Deep Dry Needling vs Ischemic Compression in the Latent Myofascial Trigger Points of the Shortened Triceps Surae from Triathletes on Ankle Dorsiflexion, Dynamic, and Static Plantar Pressure Distribution: A Clinical Trial

Pain Medicine ◽  
2019 ◽  
Vol 21 (2) ◽  
pp. e172-e181 ◽  
Author(s):  
María Benito-de-Pedro ◽  
Ricardo Becerro-de-Bengoa-Vallejo ◽  
Marta Elena Losa-Iglesias ◽  
David Rodríguez-Sanz ◽  
Daniel López-López ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Plantar Pressure ◽  
Ankle Dorsiflexion ◽  
Triceps Surae ◽  
Control Group ◽  
Single Session ◽  
Dry Needling ◽  
Myofascial Trigger Points ◽  
Plantar Pressures ◽  
Before And After

Abstract Objective To determine the immediate efficacy of a single session of deep dry needling (DDN) vs ischemic compression (ICT) in a latent myofascial trigger point (MTrP) of the shortened triceps surae from triathletes for ankle dorsiflexion and redistribution of plantar pressures and stability. Design A randomized simple blind clinical trial (NCT03273985). Setting An outpatient clinic. Subjects Thirty-four triathletes with a latent MTrP in the shortened gastrocnemius. Methods Triathletes were randomized to receive a single session of DDN (N = 17) or ICT (N = 17) in a latent MTrP of the shortened triceps surae. The primary outcome was ankle dorsiflexion range of motion (ROM) by a universal goniometer. Secondary objectives were distribution of dynamic and static plantar pressures by T-Plate platform pressure, with measurements both before and after five, 10, 15, 20, and 25 minutes of treatment. Results There were no statistically significant differences (P &gt; 0.05) for ankle dorsiflexion ROM or dynamic and static plantar pressures between the experimental group treated with DDN and the control group treated with ICT before and after treatment. Conclusions DDN vs ICT carried out in latent MTrPs of the shortened gastrocnemius of triathletes did not present differences in terms of dorsiflexion ROM of the tibiofibular-talar joint or in static and dynamic plantar pressure changes before and immediately after treatment.

scholarly journals Elhízott populációra jellemző talpnyomásminták vizsgálata

2016 ◽  
Vol 157 (48) ◽  
pp. 1919-1925 ◽  
Author(s):  
Eleonóra Leidecker ◽  
Péter Kellermann ◽  
Mónika Galambosné Tiszberger ◽  
Bálint Molics ◽  
Aliz Bohner-Beke ◽  
...  
Keyword(s):  
Body Weight ◽  
Contact Area ◽  
Plantar Pressure ◽  
Peak Pressure ◽  
Maximum Pressure ◽  
Foot Health ◽  
Working Age ◽  
Obese Subjects ◽  
The Impact ◽  
Plantar Area

Introduction: Although the role of body weight on foot health and load has been widely documented in research, the effect of the extra load due to body weight on plantar pressure characteristics is not well known. Aim: The aim of this study was to evaluate the impact of obesity on plantar pressure patterns among the working-age population. Method: 180 participants were involved. Two groups were evaluated according to body mass index categories regarding eight regions of the plantar area, focusing on the following parameters: contact area, maximum pressure and peak pressure. Results: Compared with non-obese subjects, the peak pressure was the highest on the midfoot (p<0.001) and the forefoot (p<0.001). Regarding the maximum force, significant statistical difference was detected on the toes (p<0.001), with a value lower among the obese group. The contact area on the total foot and the midfoot was lower among the non-obese subjects (p<0.001). Conclusions: Loading is greatly increasing on the whole plantar area, especially at the midfoot and the forefoot region. Orv. Hetil., 2016, 157(48), 1919–1925.

scholarly journals An exploration of changes in plantar pressure distributions during walking with standalone and supported lateral wedge insole designs

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Calvin T. F. Tse ◽  
Michael B. Ryan ◽  
Jason Dien ◽  
Alex Scott ◽  
Michael A. Hunt
Keyword(s):  
Knee Joint ◽  
Knee Osteoarthritis ◽  
Pressure Distribution ◽  
Contact Area ◽  
Plantar Pressure ◽  
Load Distribution ◽  
Plantar Pressure Distribution ◽  
Arch Support ◽  
Knee Joint Load ◽  
Joint Load

Abstract Background Lateral wedge insoles (LWI), standalone or with medial arch support (supported-LWI), have been thoroughly investigated for their effects on modifying gait biomechanics for people with knee osteoarthritis. However, plantar pressure distribution between these insole types has not been investigated and could provide insight towards insole prescription with concomitant foot symptoms taken into consideration. Methods In a sample of healthy individuals (n = 40), in-shoe plantar pressure was measured during walking with LWI, with or without medial arch support (variable- and uniform-stiffness designs), and a flat control insole condition. Pressure data from the plantar surface of the foot were divided into seven regions: medial/lateral rearfoot, midfoot, medial/central/lateral forefoot, hallux. Plantar pressure outcomes assessed were the medial-lateral pressure index (MLPI) for the whole foot, and the peak pressure, pressure-time integral (PTI), and contact area in each plantar region. Comfort in each insole condition was rated as a change relative to the flat control insole condition. Repeated-measures analyses of variance were calculated to compare the plantar pressure outcomes between insole conditions. Results Regionally, medial rearfoot and forefoot pressure were reduced by all wedged insoles, with the variable-stiffness supported-wedge showing greater reductions than the standalone wedge. Lateral rearfoot and forefoot pressure were reduced by both supported-LWI, but unchanged by the standalone wedge. In the midfoot, the standalone wedge maintained pressure but reduced regional contact area, while both supported-LWI increased midfoot pressure and contact area. All LWI increased the MLPI, indicating a lateral shift in plantar pressure distribution throughout the weightbearing phase of gait. Comfort ratings were not significantly different between insole conditions. Conclusions Regional differences in plantar pressure may help determine an appropriate lateral wedge insole variation to avoid exacerbation of concomitant foot symptoms by minimizing pressure in symptomatic regions. Lateral shifts in plantar pressure distribution were observed in all laterally wedged conditions, including one supported-LWI that was previously shown to be biomechanically ineffective for modifying knee joint load distribution. Thus, shifts in foot centre of pressure may not be a primary mechanism by which LWI can modify knee joint load distribution for people with knee osteoarthritis.

scholarly journals Impact of body weight on shifting of foot pressure among adult subjects

2020 ◽  
Vol 22 (2) ◽  
Author(s):  
Enas F. Youssef ◽  
Alsayed A. Shanb ◽  
Mariam A. Ameer ◽  
Mahmoud E. Shanab
Keyword(s):  
Contact Area ◽  
Plantar Pressure ◽  
Peak Pressure ◽  
Normal Subjects ◽  
Foot Pressure ◽  
Foot Length ◽  
Group I ◽  
Walking Activity ◽  
Length Width ◽  
Obese Subjects

Purpose: The aim of the study was to compare the distribution of foot plantar pressure between normal and obese adult subjects during walking. Methods: Sixty male and female adult volunteers (aged 20–40) were recruited into the study. They were equally divided into 30 normal subjects (BMI = 18.5–22.9 kg/cm2) into group I and 30 obese subjects (BMI ≥ 25.0 kg/cm2) into group II, according to their BMI. Results: There were statistically significant differences between normal and obese subjects in foot length, width, and pressure distribution in the hindfoot, midfoot, forefoot, and toes. There was a statistically significant increase in the plantar pressure of all measured areas in obese persons in comparison with the normal subjects. In addition, all measures of foot pressure showed statistically significant differences between the same sex of both groups, while the obese subjects of both genders have higher foot pressure in all measured areas. High positive correlations were detected between BMI, peak pressure, foot contact, and foot width in both groups, but there was a weak positive correlation between normal BMI and foot contact area. Conclusion: The distribution of plantar foot pressure is different in adult obese subjects than in normal adult subjects during walking activity. The obese persons have larger foot length, width, higher peak pressure, and contact area. This study can help physical therapists to understand the differences of foot pressure between normal and obese subjects, and consequently, to detect any expected foot abnormalities accompanied by obesity.

The effects of calf muscles fatigue on dynamic plantar pressure distribution in normal foot posture and flexible flatfoot: A case-control study

2021 ◽  
pp. 1-9
Author(s):  
Muge Kirmizi ◽  
Yesim Salik Sengul ◽  
Salih Angin
Keyword(s):  
Pressure Distribution ◽  
Contact Area ◽  
Plantar Pressure ◽  
Maximum Force ◽  
Mixed Design ◽  
Plantar Pressure Distribution ◽  
Flexible Flatfoot ◽  
Before And After ◽  
Foot Posture ◽  
Calf Muscles

BACKGROUND: Flexible flatfoot is associated with altered plantar pressure distribution, but it is not clear how muscle fatigue affects plantar pressure characteristics in flexible flatfoot and normal foot. OBJECTIVE: To investigate the effects of calf muscles fatigue on plantar pressure variables in flexible flatfoot and normal foot. METHODS: Twenty-five people with flexible flatfoot and twenty-five people with normal foot were included. The unilateral heel-rise test was used to induce calf muscles fatigue. Plantar pressure variables were collected during preferred walking immediately before and after fatigue. The two-way mixed-design ANOVA was used to determine the main effect of fatigue and the interaction between foot posture and fatigue. RESULTS: Fatigue causes medialization of the contact area under the forefoot and the maximum force under the heel and forefoot (p< 0.05). When examining the differences in the effects of fatigue between groups, the contact area under the medial heel increased with fatigue in flexible flatfoot but decreased in normal foot; moreover, the contact area and maximum force under the midfoot and the maximum force under the third metatarsal decreased with fatigue in flexible flatfoot but increased in normal foot (p< 0.05). CONCLUSIONS: Calf muscles fatigue causes medialization of the maximum force and contact area. Especially the midfoot was affected differently by fatigue in flexible flatfoot and normal foot.

scholarly journals Diferencias de la pisada en estático después de una maratón (Differences in static footstep after a marathon)

Retos ◽  
2017 ◽  
pp. 134-137
Author(s):  
Víctor José Fernández-Torres ◽  
Cristina Robles-Rodriguez ◽  
Guillermo De Castro-Maqueda ◽  
Victoria Candelario Poteleschenko ◽  
Jose Vicente Gutierrez-Manzanedo ◽  
...  
Keyword(s):  
Plantar Pressure ◽  
Standing Position ◽  
Medical Examination ◽  
Front Part ◽  
Inclusion Criteria ◽  
Marathon Race ◽  
Before And After ◽  
Mean Pressure ◽  
The Right ◽  
The Relationship

Introducción: Correr maratones es uno de los deportes más en auge de los últimos años, sin embargo existen pocos estudios biomecánicos de la pisada del pie, lo cual podría mejorar la eficiencia de la carrera y a prevenir lesiones. Objetivos: Determinar el efecto de correr una maratón sobre la pisada del corredor y averiguar la relación entre edad y la presión plantar antes y después de una maratón. Métodos: Se seleccionó a 15 corredores de los participantes en la Maratón de Madrid 2014. Tras pasar un reconocimiento médico y cumplir los criterios de inclusión, a cada uno de los corredores se los tomó medidas de fuerza, presión plantar y superficie de apoyo antes y después de correr la maratón. Las medidas se tomaron totalmente descalzos y utilizando una plataforma de presiones. Resultados: Los atletas mostraron una disminución de la superficie total de apoyo tanto del pie derecho como del pie izquierdo (p = .02 y p < .001; respectivamente). La presión media total del pie izquierdo se incrementó justo al acabar la prueba de maratón (p = .02). La edad se asoció negativamente con la superficie de apoyo de la parte delantera del pie izquierdo (r = -.55, p = .04), con el porcentaje de la fuerza en la parte delantera del pie izquierdo (r = -.52, p = .05), con la distribución de la parte delantera del pie derecho (r = -.53, p = .05). Conclusiones: El correr una maratón y la edad parece estar afectando al patrón de carrera, y por consiguiente al apoyo plantar. Este hecho puede estar provocado por el cansancio de la prueba y por ritmo más lento que llevan los maratonianos de más edad.Abstract: background: Marathon is a sport that had a boom in recent years. However, there are few biomechanical studies on footsteps, which could promote running efficiency and injuries prevention. Purpose: To determine the effects of marathon races on plantar pressure before and after a marathon race and to determine the relationship between age and plantar pressure before and after a marathon. Methods: We selected 15 runners who participated in Madrid’s Marathon 2014. After medical examination and explanation of the inclusion criteria to all participants, barefoot pressures in a static and standing position was measured on a pressure platform before and just at the end of the marathon. Measurements were taken with participants being completely barefoot and using a pressure platform. Results: After marathon, athletes showed a decrease in the total area of support of footsteps both in the right and left feet (p = .02 y p < .001; respectively). The total mean pressure of left foot was increased just at the end of the race (p = .02). The age was negatively associated with the surface of front part in left foot (r = -.55, p = .04), with the percentage of the force of the front part of the left foot (r = -.52, p = .05) and with the forces distribution of the front part in the right foot (r = -.53, p = .05). Conclusions: Running a marathon and age seems to be affecting the race pattern, as well as footsteps. This fact could be caused by fatigue and the slower race velocity of older runners.

scholarly journals Effects of Minimalist Footwear and Foot Strike Pattern on Plantar Pressure during a Prolonged Running

2022 ◽  
Vol 12 (1) ◽  
pp. 506
Author(s):  
Marta Izquierdo-Renau ◽  
Roberto Sanchis-Sanchis ◽  
Jose I. Priego-Quesada ◽  
Alberto Encarnación-Martínez ◽  
Ana Queralt ◽  
...  
Keyword(s):  
Contact Area ◽  
Plantar Pressure ◽  
Contact Time ◽  
Peak Pressure ◽  
Maximal Aerobic Speed ◽  
Mean Pressure ◽  
Pressure Peak ◽  
Foot Strike ◽  
Running Mechanics ◽  
Lower Contact

The use of minimalist shoes (MS) in running involves changes in running mechanics compared to conventional shoes (CS), but there is still little research analysing the effects of this footwear on plantar pressure, which could help to understand some risk injury factors. Moreover, there are no studies examining the effects of a prolonged running and foot strike patterns on baropodometric variables in MS. Therefore, the aim of this study was to analyse the changes produced using MS on plantar pressure during a prolonged running, as well as its interaction with the time and foot strike pattern. Twenty-one experienced minimalist runners (age 38 ± 10 years, MS running experience 2 ± 1 years) ran with MS and CS for 30 min at 80% of their maximal aerobic speed, and mean pressure, peak pressure, contact time, centre of pressure velocity, relative force and contact area were analysed using a pressure platform. Foot strike pattern and time were also considered as factors. The multivariable linear regression mixed models showed that the use of MS induced, at the end of a prolonged running, higher peak pressure (p = 0.008), lower contact time (p = 0.004) and lower contact area (p < 0.001) than using CS. Also, runners with forefoot strike pattern using MS, compared to midfoot and rearfoot patterns, showed higher mean and peak pressure (p < 0.001) and lower contact time and area (p < 0.05). These results should be considered when planning training for runners using MS, as higher peak pressure values when using this type of footwear could be a risk factor for the development of some foot injuries.

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