Plantar Pressure Distribution in a Hyperpronated Foot before and after Intervention with an Extraosseous Talotarsal Stabilization Device—A Retrospective Study

Fitzgerald, Ryan H; Vedpathak, Anuja

doi:10.1053/j.jfas.2013.03.011

Cited by 16 publications

(11 citation statements)

References 50 publications

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“…[13,14] Although peak pressure and pressure-time integral have widely been used to identify plantar pressure characteristics in the foot, [15,16] these variables exerted by Novel software (Novel, Germany) have not been considered in the current study because they have not been able to give sufficient information on mechanical loading of the plantar surface of the foot. Instead, we used the alternative plantar pressure variable which was described by Melai et al [12] Whilst information provided by the sole of the foot that is necessary for maintaining postural stability, the plantar pressure characteristics must accurately be measured to obtain the cumulative value.…”

Section: Discussionmentioning

confidence: 99%

Tek ayak üzerinde duruşta postural salınım hızının ayak postur indeksi, ayak büyüklüğü ve plantar basınç değerleri ile tahmini

Angin

İlçin

Yeşilyaprak

et al. 2013

Eklem Hastalik Cerrahisi

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Amaç: Bu çalışmada tek ayak üzerine duruşta postural stabilite açısından postural salınım hızının plantar basınç, ayak postur indeksi (API) ve ayak büyüklüğü ile tahmin edilip edilemeyeceği araştırıldı. Hastalar ve yöntemler: Çalışmaya 118 kişinin (62 erkek, 56 kadın; ort. yaş 22.1±3.1 yıl; dağılım 18-36 yıl) toplam 236 ayağı dahil edildi. Ayaklar API indeksine göre düztaban, normal ve yüksek taban olarak sınıflandırıldı. Postural salınım hızı, tek ayak üzerine duruşta gözler açık (TA-GA) ve gözler kapalı (TA-GK) durumda Balance Master ile ölçüldü. Her ayak için 10 farklı plantar bölgenin basınçları ise, EMED-M pedobarograf kullanılarak ölçüldü. Plantar basınç değerlerin-den kuvvet-zaman-alan (KZA) integrali belirlendi ve ayak genişliği ayak uzunluğuna bölünerek standart ayak büyüklü-ğü (SAB) hesaplandı. Gruplar arasında postural salınım hızı farklılıklarını belirlemek için tek yönlü ANOVA kullanıldı. Postural salınım hızının tahmin edilebilirliğini belirlemek için çoklu doğrusal regresyon analizi kullanıldı. Bulgular: Postural salınım hızı TA-GA durumda her üç grup için benzer bulundu (p>0.05). TA-GK durumda en yüksek postural salınım hızı düztaban ayak grubunda, en düşük salınım hızı ise yüksek taban ayak grubunda saptandı (p<0.05). TA-GK durumda ölçülen postural salınım hızı ile SAB (b= 0.141, p<0.05), topukta belirlenen KZA integral değeri (b= -0.127, p<0.05) ve API (b= 0.246, p<0.05) arasında anlamlı ilişki saptandı. Sonuç: Tek ayak üzerine duruşta KZA integral ve SAB parametrelerinin postural salınım hızını öngördürücü değeri düşüktür. Postural salınım hızı daha çok API ile ilintili olup, ayaktaki pronasyon ile artar.Anahtar sözcükler: Düztaban; ayak; postural denge; postur.Objectives: This study aims to assess whether the plantar pressure, the foot posture index (FPI) and foot size can predict the postural sway velocity in terms of postural stability in unilateral stance. Patients and methods: A total of 236 feet of 118 participants (62 males, 56 females; mean age 22.1±3.1 years; range 18 to 36 years) were enrolled. The feet were classified as prone, normal and supine based on the FPI. Postural sway velocity during unilateral stance with eye open (US-EO) and eye closed (US-EC) condition was measured using the Balance Master. Plantar pressure for each foot was measured from 10 different areas using EMED-M pedobarography. The force-time-area (FTA) integral was calculated based on the plantar pressure values, while standardized foot size (SFS) was calculated dividing foot width by foot length. The one-way ANOVA was used to determine differences in postural sway velocity between the groups. Multiple linear regression analysis was used to evaluate the predictability of the postural sway velocity. Results: The postural sway velocities in US-EO condition were similar among three groups (p>0.05). In the US-EC condition, the highest postural sway velocity in the prone feet and lowest postural sway velocity in the supine feet were measured (p<0.05). There was a significant relationship between the postural sway vel...

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Section: Discussionmentioning

confidence: 99%

Tek ayak üzerinde duruşta postural salınım hızının ayak postur indeksi, ayak büyüklüğü ve plantar basınç değerleri ile tahmini

Angin

İlçin

Yeşilyaprak

et al. 2013

Eklem Hastalik Cerrahisi

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“…Ankle motions responsible for shock absorption during early loading are a combination of dorsiflexion and eversion (i.e., pronation) [ 36 , 59 , 60 , 61 ]. Flat-foot contact is not considered desirable for shock absorption because the interval from initial foot contact to foot flat determines impact distribution over time due to the eccentric work of dorsiflexors [ 37 , 38 , 61 ].…”

Section: Shoe Insole Technology For Gait Control and Injury Prevenmentioning

confidence: 99%

“…A higher recovery rate is, therefore, considered advantageous in reducing the heel contact forces transferred to other lower limb joints. For efficient loading, insole geometry can be re-designed to support pronation of the subtalar joint at heel contact while ensuring no disturbance to later ankle supination [ 36 , 59 , 60 , 61 , 68 ]. In the presence of foot deformity or other pathological conditions, however, careful consideration is required prior to any insole modification.…”

Section: Shoe Insole Technology For Gait Control and Injury Prevenmentioning

confidence: 99%

Shoe-Insole Technology for Injury Prevention in Walking

Nagano¹,

Begg²

2018

Sensors

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Impaired walking increases injury risk during locomotion, including falls-related acute injuries and overuse damage to lower limb joints. Gait impairments seriously restrict voluntary, habitual engagement in injury prevention activities, such as recreational walking and exercise. There is, therefore, an urgent need for technology-based interventions for gait disorders that are cost effective, willingly taken-up, and provide immediate positive effects on walking. Gait control using shoe-insoles has potential as an effective population-based intervention, and new sensor technologies will enhance the effectiveness of these devices. Shoe-insole modifications include: (i) ankle joint support for falls prevention; (ii) shock absorption by utilising lower-resilience materials at the heel; (iii) improving reaction speed by stimulating cutaneous receptors; and (iv) preserving dynamic balance via foot centre of pressure control. Using sensor technology, such as in-shoe pressure measurement and motion capture systems, gait can be precisely monitored, allowing us to visualise how shoe-insoles change walking patterns. In addition, in-shoe systems, such as pressure monitoring and inertial sensors, can be incorporated into the insole to monitor gait in real-time. Inertial sensors coupled with in-shoe foot pressure sensors and global positioning systems (GPS) could be used to monitor spatiotemporal parameters in real-time. Real-time, online data management will enable ‘big-data’ applications to everyday gait control characteristics.

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“…More speciically, the increase in plantar pressure peaks observed in this study in the pronated group may be associated with an ineicient functioning of the subtalar joint (responsible for the transformation of the tibial rotation into pronation), which is characteristic in individuals who exhibit excessive pronation movement during gait 7,18 . his ineiciency may be related to myoligamentar deicits, since the ankle ligaments counting on the help of the tibialis anterior, tibialis posterior, gastrocnemius and soleus muscles, are the main responsible for avoiding excessive pronation 17 .…”

Section: Discussionmentioning

confidence: 78%

“…Also, regarding the inluence of changes in the kinematics patterns of the lower limbs in the kinetic aspects of gait 7,11 , it was veriied that changes in the normal biomechanics of the foot / ankle complex signiicantly inluenced the patterns of plantar pressure distribution. here may also be an association between the kinematics of lower limbs (knee) and alteration in the plantar pressure distribution, increasing the risk of developing pain, discomfort and pathologies, especially in individuals who practice repetitive activities and with greater intensity 19 .…”

Section: Discussionmentioning

confidence: 98%

Alteração do Ângulo de Pronação da Articulação Subtalar tem Influência na Distribuição de Pressão Plantar: Um Estudo Preliminar

Santos

Manfio

Carpes

et al. 2017

Rev. Bras. Cineantropom. Desempenho Hum.

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-Several studies have investigated the relationship between heel pronation with plantar pressure during gait. With a degree of variability and inluence of the footwear, usually excessive pronation is associated with higher mechanical loads. However, larger loads are commonly associated with pronation. his study aims to compare the plantar pressure distribution among individuals with diferent pronation angles of the subtalar joint angle during gait with controlled speed. he maximum angle of the subtalar joint was determined by capturing images in the frontal plane and the pressure plant peaks were acquired by EMED pressure platform. he pronated group showed pressure plant peaks signiicantly higher in the lateral heel area (18%; p=0.031), medial heel (17%, p=0.034), lateral midfoot (30%; p=0.032) and medial midfoot (41%; p=0.018) when compared to the control group. Excessive pronation of the subtalar joint caused changes in plantar pressure distribution, and an increase in pressure plant peaks, especially in the heel and midfoot regions. his demonstrates the need for a speciic care of this population, mainly because the increased pressure plant peaks is related to pain in the feet and onset of injuries.

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Plantar Pressure Distribution in a Hyperpronated Foot before and after Intervention with an Extraosseous Talotarsal Stabilization Device—A Retrospective Study

Cited by 16 publications

References 50 publications

Tek ayak üzerinde duruşta postural salınım hızının ayak postur indeksi, ayak büyüklüğü ve plantar basınç değerleri ile tahmini

Tek ayak üzerinde duruşta postural salınım hızının ayak postur indeksi, ayak büyüklüğü ve plantar basınç değerleri ile tahmini

Shoe-Insole Technology for Injury Prevention in Walking

Alteração do Ângulo de Pronação da Articulação Subtalar tem Influência na Distribuição de Pressão Plantar: Um Estudo Preliminar

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