Influence of Malalignment of Feet on the Plantar Pressure Pattern in Running

1995 ◽  
Vol 16 (10) ◽  
pp. 624-632 ◽  
Author(s):  
Claire Jeanne Louise Sneyers ◽  
Roeland Lysens ◽  
Hilde Feys ◽  
Ruoli Andries
Keyword(s):  
Plantar Pressure ◽  
Female Athletes ◽  
Anterior Part ◽  
Lower Limbs ◽  
Pes Cavus ◽  
Pes Planus ◽  
Pressure Pattern ◽  
Relative Load ◽  
And Function ◽  
Peak Pressures

When overuse injuries of the lower limbs are diagnosed in athletes, the architecture and function of the foot should be examined. Foot structure was evaluated in 10 male and 14 female athletes. Based on this examination, the subjects were classified into three groups: pes planus, pes cavus, and pes rectus. While running, the plantar pressure pattern of these athletes was assessed with pressure-measuring insoles. Using these measurements, peak pressures and impulses were calculated for different foot anatomical locations. The plantar heel load was distributed significantly ( P < 0.05) more toward the anterior part of the calcaneus in the pes planus group compared with the normal group. The relative load under the midfoot region was significantly ( P < 0.05) lower in the pes cavus group compared with the other foot types. The relative load of the forefoot was significantly ( P < 0.05) higher in the pes cavus group and lower in the pes planus group. Both feet of an athlete showed a similar plantar pressure pattern. Three successive steps were comparable in terms of impulses, but the peak pressures varied significantly from step to step. The local impulse and peak pressure values obtained in barefoot running differed significantly from the values obtained in running with sport shoes.

scholarly journals Longitudinal Analysis of Plantar Pressures with Wear of a Running Shoe

2020 ◽  
Vol 17 (5) ◽  
pp. 1707 ◽  
Author(s):  
Elena Escamilla-Martínez ◽  
Beatriz Gómez-Martín ◽  
Lourdes María Fernández-Seguín ◽  
Alfonso Martínez-Nova ◽  
Juan Diego Pedrera-Zamorano ◽  
...  
Keyword(s):  
Longitudinal Analysis ◽  
Plantar Pressure ◽  
Pressure Pattern ◽  
Plantar Pressures ◽  
Material Fatigue ◽  
Running Shoes ◽  
Recreational Runners ◽  
Peak Pressures ◽  
Shoe Wear ◽  
Subjective Sensation

Running shoes typically have a lifespan of 300–1000 km, and the plantar pressure pattern during running may change as the shoe wears. So, the aim of this study was to determine the variation of plantar pressures with shoe wear, and the runner’s subjective sensation. Maximun Plantar Pressures (MMP) were measured from 33 male recreational runners at three times during a training season (beginning, 350 km, and 700 km) using the Biofoot/IBV® in-shoe system (Biofoot/IBV®, Valencia, Spain). All the runners wore the same shoes (New Balance® 738, Boston, MA, USA) during this period, and performed similar training. The zones supporting most pressure at all three study times were the medial (inner) column of the foot and the forefoot. There was a significant increase in pressure on the midfoot over the course of the training season (from 387.8 to 590 kPa, p = 0.003). The runners who felt the worst cushioning under the midfoot were those who had the highest peak pressures in that area (p = 0.002). The New Balance® 738 running shoe effectively maintains the plantar pressure pattern after 700 km of use under all the zones studied except the midfoot, probably due to material fatigue or deficits of the specific cushioning systems in that area.

The Diagnosis of Pes Planus and Pes Cavus in Soldiers by the Foot-Ground Pressure Pattern

1985 ◽  
Vol 150 (4) ◽  
pp. 215-217 ◽  
Author(s):  
Joseph Alcalay ◽  
Natan Lederman ◽  
Benjamin Kornbrot
Keyword(s):  
Pes Cavus ◽  
Pes Planus ◽  
Pressure Pattern ◽  
Ground Pressure

scholarly journals Gender Differences in Kinematic Analysis of the Lower Limbs during the Chasse Step in Table Tennis Athletes

Healthcare ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 703
Author(s):  
Xiaoyi Yang ◽  
Yuqi He ◽  
Shirui Shao ◽  
Julien S. Baker ◽  
Bíró István ◽  
...  
Keyword(s):  
Female Athletes ◽  
External Rotation ◽  
Rotational Velocity ◽  
Knee Extension ◽  
Lower Limbs ◽  
Table Tennis ◽  
Male Athletes ◽  
Analysis System ◽  
Hip Flexion ◽  
Hip Internal Rotation

The chasse step is one of the most important footwork maneuvers used in table tennis. The purpose of this study was to investigate the lower limb kinematic differences of table tennis athletes of different genders when using the chasse step. The 3D VICON motion analysis system was used to capture related kinematics data. The main finding of this study was that the step times for male athletes (MA) were shorter in the backward phase (BP) and significantly longer in the forward phase (FP) than for female athletes (FA) during the chasse step. Compared with FA, knee external rotation for MA was larger during the BP. MA showed a smaller knee flexion range of motion (ROM) in the BP and larger knee extension ROM in the FP. Moreover, hip flexion and adduction for MA were significantly greater than for FA. In the FP, the internal rotational velocity of the hip joint was significantly greater. MA showed larger hip internal rotation ROM in the FP but smaller hip external rotation ROM in the BP. The differences between genders can help coaches personalize their training programs and improve the performance of both male and female table tennis athletes.

scholarly journals The Design and Simulation of a 16-Sensors Plantar Pressure Insole Layout for Different Applications: From Sports to Clinics, a Pilot Study

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1450
Author(s):  
Alfredo Ciniglio ◽  
Annamaria Guiotto ◽  
Fabiola Spolaor ◽  
Zimi Sawacha
Keyword(s):  
Pressure Distribution ◽  
Plantar Pressure ◽  
Center Of Pressure ◽  
Reaction Force ◽  
Weight Lifting ◽  
Lower Limbs ◽  
Plantar Pressure Distribution ◽  
Drop Landing ◽  
Mean Pressure ◽  
Footwear Design

The quantification of plantar pressure distribution is widely done in the diagnosis of lower limbs deformities, gait analysis, footwear design, and sport applications. To date, a number of pressure insole layouts have been proposed, with different configurations according to their applications. The goal of this study is to assess the validity of a 16-sensors (1.5 × 1.5 cm) pressure insole to detect plantar pressure distribution during different tasks in the clinic and sport domains. The data of 39 healthy adults, acquired with a Pedar-X® system (Novel GmbH, Munich, Germany) during walking, weight lifting, and drop landing, were used to simulate the insole. The sensors were distributed by considering the location of the peak pressure on all trials: 4 on the hindfoot, 3 on the midfoot, and 9 on the forefoot. The following variables were computed with both systems and compared by estimating the Root Mean Square Error (RMSE): Peak/Mean Pressure, Ground Reaction Force (GRF), Center of Pressure (COP), the distance between COP and the origin, the Contact Area. The lowest (0.61%) and highest (82.4%) RMSE values were detected during gait on the medial-lateral COP and the GRF, respectively. This approach could be used for testing different layouts on various applications prior to production.

Idiopathic pes cavus in adults is not associated with neurophysiological impairment in the lower limbs

2015 ◽  
Vol 36 (12) ◽  
pp. 2287-2290 ◽  
Author(s):  
Roberto Di Fabio ◽  
Ludovico Lispi ◽  
Filippo Maria Santorelli ◽  
Claudio Castagnoli ◽  
Andrea Matrigale ◽  
...  
Keyword(s):  
Lower Limbs ◽  
Pes Cavus

scholarly journals Plantar Pressure Differences Between Nordic Walking Techniques

2017 ◽  
Vol 57 (1) ◽  
pp. 221-231 ◽  
Author(s):  
Alberto Encarnación-Martínez ◽  
Ángel Gabriel Lucas-Cuevas ◽  
Pedro Pérez-Soriano ◽  
Ruperto Menayo ◽  
Gemma María Gea-García
Keyword(s):  
Plantar Pressure ◽  
Repeated Measures ◽  
Walking Speed ◽  
Lower Limbs ◽  
Pressure Data ◽  
Nordic Walking ◽  
Risk Of Injury ◽  
Increased Risk ◽  
Practical Conclusion ◽  
Physiological Benefits

AbstractHigh plantar pressure has been associated with increased risk of injury. The characteristics of each physical activity determine the load on the lower limbs. The influence of Nordic Walking (NW) technique on plantar pressure is still unknown. The aim of this study was to analyze the differences between plantar pressure during NW with the Diagonal technique (DT) versus Alpha technique (AT) and compare them with the pressure obtained during normal walking (W). The normality and sphericity of the plantar pressure data were checked before performing a two-way repeated measures ANOVA in order to find differences between speeds (preferred, fast) and the gait (NW, W) as within-subject factors. Then, a t-test for independent measures was used to identify the specific differences between NW techniques. The strength of the differences was calculated by means of the effect size (ES). The results demonstrated that during NW with AT at preferred speed the pressure was lower under the Calcaneus, Lateral Metatarsal and Toes compared to the DT group (p = 0.046, ES = 1.49; p = 0.015, ES = 1.44; p = 0.040, ES = 1.20, respectively). No differences were found at the fast speed (p > 0.05). Besides the increase in walking speed during NW (p < 0.01), both technique groups showed lower pressure during NW compared to W under the Hallux and Central Metatarsal heads (F = 58.321, p = 0.000, ES = 2.449; F = 41.917, p = 0.012, ES = 1.365, respectively). As a practical conclusion, the AT technique may be the most effective of the NW techniques at reducing plantar pressure while allowing NW practitioners to achieve the physiological benefits of NW.

Influence of running shoe type on distribution and magnitude of plantar pressures among those with pes planus or pes cavus feet

2008 ◽  
Vol 23 (5) ◽  
pp. 708-709 ◽  
Author(s):  
Joseph M. Molloy ◽  
Nancy S. Yeykal ◽  
Bradley S. Tragord ◽  
Matthew S. Neal ◽  
Eric S. Nelson ◽  
...  
Keyword(s):  
Pes Cavus ◽  
Pes Planus ◽  
Plantar Pressures

The Effect of Tibiotalar Fixation on Foot Biomechanics

1997 ◽  
Vol 18 (12) ◽  
pp. 792-797 ◽  
Author(s):  
Jennifer S. Wayne ◽  
Keith W. Lawhorn ◽  
Kenneth E. Davis ◽  
Karanvir Prakash ◽  
Robert S. Adelaar
Keyword(s):  
Subtalar Joint ◽  
Sagittal Plane ◽  
Lower Limbs ◽  
Coronal Plane ◽  
Neutral Position ◽  
Talonavicular Joint ◽  
Tibiotalar Joint ◽  
Contact Areas ◽  
Joint Contact ◽  
Peak Pressures

Contact areas and peak pressures in the posterior facet of the subtalar and the talonavicular joints were measured in cadaver lower limbs for both the normal limb and after fixation of the tibiotalar joint. Six joints were fixed in neutral, in 5–7° of varus and of valgus. Ten degrees of equinus angulation was also studied. Each position of fixation was tested independently. Neutral was defined as fixation without coronal or sagittal plane angulation compared with prefixation alignment of the specimen. When compared with normal unfused condition, peak pressures increased, and contact areas decreased in the subtalar joint for specimens fixed in neutral, varus, and valgus. However, the change in peak pressure for neutral fusion compared with normal control was not statistically significant ( P > 0.07). Peak pressures for varus and valgus fixation were significantly different from normal ( P < 0.001). Contact areas for all positions of fixation were significantly different from normal ( P < 0.001). Coronal plane angulation, however, also resulted in significantly lower contact areas compared with neutral fixation ( P < 0.001). Contact areas and peak pressures in the talonavicular joint did not appear to be substantially affected by tibiotalar fixation with coronal plane angulation. Equinus fixation qualitatively increased contact areas and peak pressures in the talonavicular and posterior facet of the subtalar joint. Neutral alignment of the tibiotalar joint in the coronal and sagittal planes altered subtalar and talonavicular joint contact characteristics the least compared with normal controls. Therefore, ankle fusion in the neutral position would be expected to most closely preserve normal joint biomechanics and may limit the progression of degenerative arthrosis of the subtalar joint.

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