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foot flat

P A Pontin, P R B Nogara, F C P Fonseca, C Cesar Netto, K C Carvalho, J M Soares Junior, E C Baracat, T D Fernandes, N Maffulli, M C L Santos, A L Godoy-Santos
BACKGROUND: Posterior tibial tendon (PTT) insufficiency is considered as the main cause of adult acquired flat foot and is three times more frequent in females. High estrogen levels exert a positive effect on the overall collagen synthesis in tendons. We have previously demonstrated the association between some genetic single-nucleotide polymorphism (SNP) and tendinopathy. In the present study, we investigated the association of PvuII c454-397T>C (NCBI ID: rs2234693) and XbaI c454-351A>G (NCBI ID: rs9340799) SNPs in estrogen receptor alfa (ER-α) gene with PPT dysfunction...
December 11, 2018: Journal of Orthopaedic Surgery and Research
Kazunori Okamura, Shusaku Kanai, Kengo Fukuda, Satoshi Tanaka, Takeya Ono, Sadaaki Oki
BACKGROUND: Strengthening exercises of the plantar intrinsic foot muscles (PIFMs) are often prescribed to flat-footed subjects because of the capacity of the PIFMs to support the medial longitudinal arch (MLA). However, it is unclear whether the capacity of the PIFMs to support the MLA is enough to change the foot kinematics in flat-footed subjects. To confirm this, the current study examined changes in foot kinematics in flat-footed subjects during standing and gait accompanied by changes in the activity of the PIFMs...
November 6, 2018: Foot
Timothy J Gibbons, Marie-Louise Bird
BACKGROUND: The training of abdominal muscles has a positive impact on the functional capacity of healthy adults, being applied practically in fields of athletics and fitness through to rehabilitation for lower back pain. OBJECTIVE: The study compares abdominal muscle activity while performing graded isometric exercises on stable and unstable surfaces. We also examined perceived stability and comfort for the different surfaces. METHODS: Thirty young, healthy adults performed three graded, isometric exercises on a Pilates table, foam roller and Oov (a newly developed tool)...
December 11, 2018: Journal of Sport Rehabilitation
François Fourchet, Nicola A Maffiuletti, Fiorenza Agosti, Alessandra Patrizi, Alessandro Sartorio
PURPOSE: Obesity increases the stresses applied to the foot. Ergonomic rocker sole shoes increase energy expenditure of standing and walking in obese individuals but could potentially alter plantar pressure distribution. The aim of this study was to compare plantar pressure distribution during standing and walking between rocker sole and flat-bottomed shoes in obese subjects. METHODS: Twenty adult obese women were asked to stand quietly and to walk at their preferred walking speed whilst wearing flat-bottomed or rocker sole shoes...
November 25, 2018: Disability and Rehabilitation
Renan A Resende, Larissa S P Pinheiro, Juliana M Ocarino
BACKGROUND: Increased foot pronation may compromise ankle plantarflexion moment during the stance phase of gait, which may overload knee and hip. RESEARCH QUESTION: This study investigated the influence of increased foot pronation on lower limbs angular displacement, internal moments and power in the sagittal plane and ground reaction force and center of pressure displacement during the stance phase of gait. METHODS: Kinematic and kinetic data of 22 participants (10 women and 12 men) were collected while they walked wearing flat (control condition) and laterally wedged sandals to induce foot pronation (inclined condition)...
October 23, 2018: Gait & Posture
R Mukhopadhyay, M Mahadevappa, P K Lenka, A Biswas
Toe-walking is a very common gait abnormality seen in children with Cerebral Palsy (CP). The present study aims to improvise the toe-walking gait by applying Electrical Stimulation (ES) therapy of the Tricep Surae (TS) muscles. The study was carried out on sixteen children with spastic CP with unilateral toe-walking gait problem, divided into the intervention group that received both ES therapy along with conventional physiotherapy treatment and the control group that received only conventional physiotherapy treatment...
July 2018: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
C M Kerr, A B Zavatsky, T Theologis, J Stebbins
BACKGROUND: Flatfoot is a common presentation in children. It is usually asymptomatic, though a small number of children experience pain. Foot function during flatfoot walking is rarely considered, yet as an activity that places significant demands on the feet, this could explain the differences in terms of symptoms. RESEARCH QUESTION: This paper investigates walking patterns in neutral and flat feet, with and without symptoms, to determine which kinematic parameters are associated with symptomatic flat feet...
January 2019: Gait & Posture
Yoshino Ueki, Eisuke Sakuma, Ikuo Wada
We describe the pathology and treatment of flexible flat foot in children. The flexible flat foot is seen in the overly flexible foot and usually involves hypermobility of the subtalar joint. It typically occurs in childhood and may continue to adulthood. The arch develops spontaneously during the first decade of life in most children and comes within the normal range observed in adult feet. We prescribed orthoses for the treatment of flexible flat foot patients. Lateral weight-bearing radiographs and ultrasonography were helpful for the evaluation of the flat foot...
October 23, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
Wei-Chun Hsu, Tommy Sugiarto, Jun-Wen Chen, Yi-Jia Lin
This study aimed to find the correlation between conventional Arch Index (AI) measurements and our prototype of a simplified insole-based plantar pressure measurement system and to find out the effective plantar pressure sensor position. Twenty-one subjects participated in this study, which was divided into two groups: 10 subjects with flatfoot and 11 subjects with normal foot. Five force sensitive resistance sensors were used on this prototype using Arduino as the data acquisition device. Two types of trials, namely static and dynamic, were conducted to validate our system against the ink-type AI measurement as a golden standard...
October 25, 2018: Sensors
Agata Novara, Mario Minacapilli, Antonino Santoro, Jesus Rodrigo-Comino, Alessandra Carrubba, Mauro Sarno, Giacomo Venezia, Luciano Gristina
The research focused on the evaluation of the effect of soil erosion processes on SOC sequestration rate after 5 years of cover crop soil management in Mediterranean vineyards (Sicily, Italy). Two paired sites, one in a sloping area and another one in a contiguous flat area, were chosen. The vineyard soils of the two plots of each paired site were managed with conventional soil tillage (CT) and Vicia faba cover crop (CC) the preceding 5 years. SOC was measured in three points along the slope (top, middle and foot parts) and in the flat area...
October 18, 2018: Science of the Total Environment
Hoang Nhat Phong Vo, Huu Hao Ngo, Wenshan Guo, Thi Minh Hong Nguyen, Yiwen Liu, Yi Liu, Dinh Duc Nguyen, Soon Woong Chang
The development of the photobioreactors (PBs) is recently noticeable as cutting-edge technology while the correlation of PBs' engineered elements such as modellings, configurations, biomass yields, operating conditions and pollutants removal efficiency still remains complex and unclear. A systematic understanding of PBs is therefore essential. This critical review study is to: (1) describe the modelling approaches and differentiate the outcomes; (2) review and update the novel technical issues of PBs' types; (3) study microalgae growth and control determined by PBs types with comparison made; (4) progress and compare the efficiencies of contaminants removal given by PBs' types and (5) identify the future perspectives of PBs...
February 15, 2019: Science of the Total Environment
Joana Figueiredo, Paulo Felix, Luis Costa, Juan C Moreno, Cristina P Santos
A benchmark and time-effective computational method is needed to assess human gait events in real-life walking situations using few sensors to be easily reproducible. This paper fosters a reliable gait event detection system that can operate at diverse gait speeds and on diverse real-life terrains by detecting several gait events in real time. This detection only relies on the foot angular velocity measured by a wearable gyroscope mounted in the foot to facilitate its integration for daily and repeated use...
October 2018: IEEE Transactions on Neural Systems and Rehabilitation Engineering
Marabelle L Heng, Priathashini Krishnasamy, Pui W Kong
BACKGROUND: While posterior tibial tendon dysfunction (PTTD) commonly presents with flat feet and has been thought to be associated with first ray mobility, many flat-footed individuals are asymptomatic and do not experience any symptoms of PTTD. Thus, there is a need to control for foot type when studying factors related to PTTD. This study aimed to clarify if first ray mobility differed between flat-footed individuals with and without symptoms of PTTD. It was hypothesized that PTTD patients would display higher mobility of the first ray than asymptomatic flat-footed controls...
August 3, 2018: Foot
Taghi Baghdadi, Hamed Mazoochy, Mohammadreza Guity, Nima Heidari Khabbaz
Background: Flexible idiopathic flatfoot is the most common form of flatfoot. First line treatments are parental reassurance and conservative measures; however, surgical treatment may be needed in some cases. A number of surgical techniques with varying results have been described in the literature. Here, we present our clinical and radiological outcomes of calcaneal lengthening osteotomy for pediatric idiopathic flexible flatfoot. Methods: Calcaneal lengthening osteotomy was performed in 20 patients, 30 feet, with idiopathic flexible flatfoot that were resistant to conservative treatment between 2007 and 2011...
September 2018: Archives of Bone and Joint Surgery
AmirAli Jafarnezhadgero, Morteza Madadi-Shad, Seyed Majid Alavi-Mehr, Urs Granacher
BACKGROUND: Due to inconclusive evidence on the effects of foot orthoses treatment on lower limb kinematics and kinetics in children, studies are needed that particularly evaluate the long-term use of foot orthoses on lower limb alignment during walking. Thus, the main objective of this study was to evaluate the effects of long-term treatment with arch support foot orthoses versus a sham condition on lower extremity kinematics and kinetics during walking in children with flexible flat feet...
2018: PloS One
Tarush Rustagi, Richard A Tallarico, William F Lavelle
Background: Three-column osteotomy is an effective means of correcting fixed sagittal plane deformities. Deformity correction surgeries may be associated with early postoperative neurological deficits often presenting as palsies involving the lumbar roots. The objective was to retrospectively assess a subset of our series of adult deformity correction surgeries and analyze neurological deficits and associated patient and surgical factors. Methods: Hospital records of 17 patients from a single center were examined...
April 2018: International Journal of Spine Surgery
Serkan Taş, Nezehat Özgül Ünlüer, Feza Korkusuz
PURPOSE: Many musculoskeletal disorders are associated with over-pronated foot and decreased medial longitudinal arch (MLA) height. Foot intrinsic muscles and plantar fascia (PF) are the primary structures that support MLA. An important reason for the over-pronated foot and the reduction in the MLA height may be the morphological characteristics of the foot intrinsic muscles and PF as well as changes in their mechanical properties. The aim of the present study is to investigate the morphologic structure and mechanical properties of PF, flexor hallucis brevis (FHB), flexor digitorum brevis (FDB), and abductor hallucis (AbH) muscles in individuals with flat foot and to compare the results with those of healthy individuals...
May 2018: Journal of Orthopaedic Surgery
Soo Yeon Cho, You Chan Kim, Jee Woong Choi
Although ingrown nail (IN) is common, there is no large-scale study regarding its epidemiology and risk factors, such as foot deformity. The purpose of this study is to determine the demographics of IN and clarify its association with bone-related comorbidities of the ankle, foot and toe. Patients in a representative sample cohort of the National Health Information Database of South Korea from 2004 to 2013 who had IN were compared with a control group without IN. Ten-year overall incidence was 307.5/100 000 person-years (95% confidence interval, 304...
September 28, 2018: Journal of Dermatology
Sara R Koehler-McNicholas, Billie C Savvas Slater, Karl Koester, Eric A Nickel, John E Ferguson, Andrew H Hansen
Previous work suggests that to restore postural stability for individuals with lower-limb amputation, ankle-foot prostheses should be designed with a flat effective rocker shape for standing. However, most commercially available ankle-foot prostheses are designed with a curved effective rocker shape for walking. To address the demands of both standing and walking, we designed a novel bimodal ankle-foot prosthesis that can accommodate both functional modes using a rigid foot plate and an ankle that can lock and unlock...
2018: PloS One
S L Orozco-Villaseñor, M Monzó-Planella, X Martín-Oliva, J E Frias-Chimal, J J Mayagoitia-Vázquez, S N Alvarado-Camacho
The insufficiency of the posterior tibial tendon is the most common acquired cause of pain related to valgus flatfoot deformity in adults. The acquired flatfoot adult is a very painful symptomatic deformity resulting from a gradual stretching (attenuation) of the posterior tibial tendon and ligaments that support the arch of the foot. The progressive pain acquired flatfoot adult affects four times more women than men. Some factors that contribute to increased risk of acquired flatfoot in adults, are diabetes, hypertension and obesity...
March 2018: Acta Ortopédica Mexicana
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