Effects of Treatment With a Cetylated Fatty Acid Topical Cream on Static Postural Stability and Plantar Pressure Distribution in Patients With Knee Osteoarthritis

2005 ◽  
Vol 19 (1) ◽  
pp. 115 ◽  
Author(s):  
William J. Kraemer ◽  
Nicholas A. Ratamess ◽  
Carl M. Maresh ◽  
Jeffery A. Anderson ◽  
David P. Tiberio ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Knee Osteoarthritis ◽  
Pressure Distribution ◽  
Plantar Pressure ◽  
Postural Stability ◽  
Topical Cream ◽  
Plantar Pressure Distribution

scholarly journals Influence of a training session on postural stability and foot loading patterns in soccer players

2016 ◽  
Vol 8 (1) ◽  
Author(s):  
Vanessa K.N. Petry ◽  
Jürgen R.J. Paletta ◽  
Bilal F. El-Zayat ◽  
Turgay Efe ◽  
Nathalie S.D. Michel ◽  
...  
Keyword(s):  
Pressure Distribution ◽  
Plantar Pressure ◽  
Postural Stability ◽  
Training Session ◽  
Young Age ◽  
Soccer Players ◽  
Plantar Pressure Distribution ◽  
Loading Patterns ◽  
Soccer Training ◽  
Foot Loading

Sport specific movements coming along with characteristic plantar pressure distribution and a fatigue of muscles result in an increasing postural sway and therefore lead to a decrease in balance control. Although single soccer specific movements were expatiated with respect to these parameters, no information is available for a complete training session. The objective of the present observational study was to analyze the direct influence of soccer training on postural stability and gait patterns and whether or not these outcomes were altered by age. One hundred and eighteen experienced soccer players participated in the study and were divided into two groups. Group 1 contained 64 soccer players (age 13.31±0.66 years) and Group 2 contains 54 ones (age 16.74±0.73 years). Postural stability, static plantar pressure distribution and dynamic foot loading patterns were measured. Our results showed that the soccer training session, as well as the age, has relevant influence on postural stability, while the age only (excluding the training) has an influence on static plantar pressure distribution. The parameters of dynamic assessment seem therefore to be affected by age, training and a combination of both. Training and young age correlate with a decreased postural stability; they lead to a significant increase of peak pressure in the previously most loaded areas, and, after reaching a certain age and magnitude of absolute values, to a change in terminal stance and preswing phase of the roll-over. Moreover, younger players show an inhomogenous static plantar pressure distribution which might be the result of the decreased postural control in the young age.

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 An Exploration of Changes in Plantar Pressure Distributions During Walking With Standalone and Supported Lateral Wedge Insole Designs 

2021 ◽  
Author(s):  
Calvin Tse ◽  
Michael Ryan ◽  
Jason Dien ◽  
Alex Scott ◽  
Michael 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 was 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 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.

The effect of shoe lacing on plantar pressure distribution and in-shoe displacement of the foot in healthy participants

2011 ◽  
Vol 33 (3) ◽  
pp. 396-400 ◽  
Author(s):  
Karin Elisabeth Fiedler ◽  
Wijnand Jan A. Stuijfzand ◽  
Jaap Harlaar ◽  
Joost Dekker ◽  
Heleen Beckerman
Keyword(s):  
Pressure Distribution ◽  
Plantar Pressure ◽  
Plantar Pressure Distribution ◽  
Healthy Participants

Influence of sensory input on plantar pressure distribution

1995 ◽  
Vol 10 (5) ◽  
pp. 271-274 ◽  
Author(s):  
H Chen ◽  
BM Nigg ◽  
M Hulliger ◽  
J de Koning
Keyword(s):  
Pressure Distribution ◽  
Plantar Pressure ◽  
Sensory Input ◽  
Plantar Pressure Distribution
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