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https://www.readbyqxmd.com/read/29332762/the-effect-of-foot-orthoses-on-joint-moment-asymmetry-in-male-children-with-flexible-flat-feet
#1
AmirAli Jafarnezhadgero, Morteza Madadi Shad, Reed Ferber
INTRODUCTION: It has been widely postulated that structural and functional misalignments of the foot, such as flat foot, may cause mechanical deviations of the lower limb during walking. The aim of this study was to investigate the effect of foot orthoses on lower extremity joint moment asymmetry during the stance phase of walking in children with asymptomatic flexible flat feet. METHODS: Fourteen volunteer male children, clinically diagnosed with flexible flat feet, participated in this study...
January 2018: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/29313094/does-arthroscopic-resection-of-a-too-long-anterior-process-improve-static-disorders-of-the-foot-in-children-and-adolescents
#2
Julien Bourlez, Pauline Joly-Monrigal, Fanny Alkar, Alexandre Laborde, Jerôme Cottalorda, Djamel Louahem, Marion Delpont
PURPOSE: A too-long anterior process of the calcaneus is a common cause of pain and hind-foot instability. Our goal was to evaluate the early results of arthroscopic resection in terms of static foot disorders in children and adolescents. METHODS: We retrospectively studied 11 ft (10 patients). The inclusion criteria were treatment of TLAP by arthroscopic resection and a minimum follow-up period of six months. Surgery was indicated in cases with persistent symptomatic TLAP resistant to orthopaedic treatment...
January 8, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29310058/the-effects-of-low-arched-feet-on-lower-limb-joints-moment-asymmetry-during-gait-in-children-a-cross-sectional-study
#3
AmirAli Jafarnezhadgero, Mahdi Majlesi, Morteza Madadi-Shad
BACKGROUND: The prevalence of flexible flat feet in children was reported to be up to 20% in previous studies. However, the role of foot type in the development of musculoskeletal injuries is less clear, particularly in children. The purpose of this study was to investigate the differences in the joint moment asymmetry in children with flexible flat feet and healthy matched control subjects. METHODS: Fourteen male children with flexible flat feet and 15 healthy control subjects served as the sample of the study...
November 10, 2017: Foot
https://www.readbyqxmd.com/read/29288908/the-role-of-military-footwear-and-workload-on-ground-reaction-forces-during-a-simulated-lateral-ankle-sprain-mechanism
#4
Jeffrey D Simpson, Hunter DeBusk, Christopher Hill, Adam Knight, Harish Chander
BACKGROUND: Ankle sprains are a common orthopedic injury in military populations, which may be attributed to occupational demands and footwear. Minimalist military boots have become popular, but their influence on ground reaction force (GRF) attenuation capabilities during an ankle inversion perturbation are unknown. Therefore, the purpose of this study was to examine potential differences in GRFs during an ankle inversion perturbation in a standard issue (STN) and minimalist military boot (MIN) before and after a simulated military workload...
November 22, 2017: Foot
https://www.readbyqxmd.com/read/29283109/an-eigenvalue-approach-to-quantum-plasmonics-based-on-a-self-consistent-hydrodynamics-method
#5
Kun Ding, Che Ting Chan
Plasmonics has attracted much attention not only because it has useful properties such as strong field enhancement, but also because it reveals the quantum nature of matter. To handle quantum plasmonics effects, ab initio packages or empirical Feibelman d-parameters have been used to explore the quantum correction of plasmonic resonances. However, most of these methods are formulated within the quasi-static framework. The self-consistent hydrodynamics model offers a reliable approach to study quantum plasmonics because it can incorporate the quantum effect of the electron gas into classical electrodynamics in a consistent manner...
December 28, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/29251168/lateral-collapse-of-the-tarsal-navicular-in-patients-with-rheumatoid-arthritis-implications-for-pes-planovarus-deformity
#6
Takumi Matsumoto, Yuji Maenohara, Song Ho Chang, Jun Hirose, Takuo Juji, Katsumi Ito, Sakae Tanaka
OBJECTIVES: In patients with rheumatoid arthritis (RA), the talonavicular joint is commonly involved and midfoot collapse can lead to progressive flattening of the arch. Despite a general awareness of the important structural role of the talonavicular joint in rheumatoid foot disease, details of its destructive pattern has not been elucidated. METHODS: We cross-sectionally investigated 176 RA patients (342 feet) and classified their feet into the following five groups according to radiographic findings: arthritis; (RA changes with normal navicular shape), Müller-Weiss Disease (MWD); (collapse of the lateral aspect of the tarsal navicular), flat; (flattened navicular), ankylosis; (ankylosis of the talonavicular joint), and normal...
December 18, 2017: Modern Rheumatology
https://www.readbyqxmd.com/read/29244534/assessing-infant-carriage-systems-ground-reaction-force-implications-for-gait-of-the-caregiver
#7
Mathew B Brown, Caroline J Digby-Bowl, Samuel D Todd
Objective To assess the acute alterations of anterior infant carriage systems on the ground reaction force experienced during over-ground walking. Background Previous research has identified the alterations in posture and gait associated with an increased anterior load (external or internal); however, the forces applied to the system due to the altered posture during over-ground walking have not been established. Method Thirteen mixed gender participants completed 45 over-ground walking trials at a self-selected pace under three loaded conditions (unloaded, semi-structured carrier 9...
December 1, 2017: Human Factors
https://www.readbyqxmd.com/read/29207819/effect-of-rocker-soled-shoe-design-on-walking-economy-in-females-with-pes-planus
#8
Manvi Dhyani, Deepika Singla, Irshad Ahmad, M Ejaz Hussain, Kamran Ali, Shalini Verma
Introduction: The energy cost is increased during walking in pes planus condition whereas, energy cost during walking using rocker bottom shoes is debatable. Aim: To determine the walking economy with rocker soled shoes, when compared with bare feet walking in females with pes planus over treadmill. Materials and Methods: Seventeen collegiate flat footed females aged 18-25 years were recruited in accordance with inclusion and exclusion criteria...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29205209/foot-mechanics-in-young-women-are-altered-after-walking-in-high-heeled-shoes
#9
Sławomir Winiarski, Alicja Rutkowska-Kucharska, Paweł Zostawa, Natalia Uścinowicz-Zostawa, Sebastian Klich
PURPOSE: Nowadays, fashion has caused that many young women are wearing high-heeled shoes. Therefore, the aim of this study was to examine the effects of long-term walking in high-heeled shoes on the foot mechanics during barefoot gait. METHODS: Forty-three young women (22 ± 2.1 years) divided into two groups participated in this retrospective cohort study. The first group was composed of women who frequently wear high-heeled footwear. The second, infrequent wearers group, consisted of women who preferred flat-heeled shoes...
2017: Acta of Bioengineering and Biomechanics
https://www.readbyqxmd.com/read/29202983/influence-of-tibialis-posterior-muscle-activation-on-foot-anatomy-under-axial-loading-a-biomechanical-ct-human-cadaveric-study
#10
Koen Dullaert, Jennifer E Hagen, Paul Simons, Florian Gras, Boyko Gueorguiev, R Geoff Richards, Kajetan Klos
BACKGROUND: Collapse of the medial longitudinal arch and subluxation of the subtalar joint are common occurrences in adult flatfoot deformity. Controversy exists about the role of the tibialis posterior (TP) tendon as first and/or essential lesion. Subtle changes in the foot configuration can occur under weight bearing. PURPOSE: This human cadaveric study is designed to investigate the effect that isolated actuation of the TP tendon has on the medial longitudinal arch and the hindfoot configuration under simulated weight bearing...
December 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29201146/time-to-revise-our-dialogue-how-flat-is-the-paediatric-flatfoot
#11
Stewart C Morrison, Juliet McClymont, Carina Price, Chris Nester
A recent systematic review of measures of foot development used the medial longitudinal arch profile as its primary indicator of development. A comparative analysis of existing studies was undertaken. This work confirmed changes with arch profile were age-dependent, although the age at which foot development ceased remains unknown. This work also highlighted the abundance of clinical measures used in existing research and outlined the challenges with drawing consensus from available data. There is a clear need to move this debate forward and, to do so, it is essential that scientific and clinical communities unite...
2017: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/29189099/creative-prosthetic-foot-selection-enables-successful-ambulation-in-stiletto-high-heels
#12
Elizabeth Russell Esposito, Delbert H Lipe, Christopher A Rábago
BACKGROUND: Walking in high heels presents biomechanical challenges, yet they remain part of many women's attire. However, women with a lower limb amputation are limited in available footwear options. Case description and methods: This case study is in response to one patient's assertion that she walked better and more symmetrically in heels than flat shoes with her below-knee prosthesis. She underwent gait analysis in athletic shoes and 10-cm stiletto high heels worn with a pediatric running foot to determine if these claims could be substantiated through biomechanical measures...
November 1, 2017: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/29182114/assessment-of-the-medial-longitudinal-arch-in-children-with-flexible-pes-planus-by-plantar-pressure-mapping
#13
E M Elmoatasem, M A Eid
INTRODUCTION: Plantar Pressure mapping was introduced as a new modality for assessment of the height of the medial longitudinal arch of the foot. Therefore, the aim of this study is to correlate the plantar pressure mapping readings of arch index contact force ratio (AICFR) in children with flexible pes planus with radiographic measurements and static plantar footprints in order to determine the reliability of pressure mapping as a modality for the assessment and follow up of the flat foot deformity...
December 2016: Acta Orthopaedica Belgica
https://www.readbyqxmd.com/read/29126046/study-on-the-foot-shape-characteristics-of-the-elderly-in-china
#14
Xiang Dong Luo, Chao-Hua Xue, Yan Li
BACKGROUND: With aging, the feet of the elderly above 60 years old in China present degenerative changes, deformities, and diseases, which significantly affect their daily activities. OBJECTIVES: The authors aimed to study the morphological characteristics of the feet and identify the foot type according to size (length and width) and defect characteristics of elderly feet in China. METHODS: A convenient sample of 1000 subjects above 60 years old was recruited mainly in the regions of Shanghai, Shaanxi, Henan, Hebei, and Sichuan in China...
April 24, 2017: Foot
https://www.readbyqxmd.com/read/29116170/injection-of-high-dose-botulinum-toxin-a-leads-to-impaired-skeletal-muscle-function-and-damage-of-the-fibrilar-and-non-fibrilar-structures
#15
Jessica Pingel, Mikkel Schou Nielsen, Torsten Lauridsen, Kristian Rix, Martin Bech, Tine Alkjaer, Ida Torp Andersen, Jens Bo Nielsen, R Feidenhansl
Botulinum-toxin A (BoNT/A) is used for a wide range of conditions. Intramuscular administration of BoNT/A inhibits the release of acetylcholine at the neuromuscular junction from presynaptic motor neurons causing muscle-paralysis. The aim of the present study was to investigate the effect of high dose intramuscular BoNT/A injections (6 UI = 60 pg) on muscle tissue. The gait pattern of the rats was significantly affected 3 weeks after BoNT/A injection. The ankle joint rotated externally, the rats became flat footed, and the stride length decreased after BoNT/A injection...
November 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29065655/the-effect-of-arch-height-and-material-hardness-of-personalized-insole-on-correction-and-tissues-of-flatfoot
#16
Shonglun Su, Zhongjun Mo, Junchao Guo, Yubo Fan
Flat foot is one of the common deformities in the youth population, seriously affecting the weight supporting and daily exercising. However, there is lacking of quantitative data relative to material selection and shape design of the personalized orthopedic insole. This study was to evaluate the biomechanical effects of material hardness and support height of personalized orthopedic insole on foot tissues, by in vivo experiment and finite element modeling. The correction of arch height increased with material hardness and support height...
2017: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29056595/effectiveness-of-foot-orthoses-for-the-prevention-of-lower-limb-overuse-injuries-in-naval-recruits-a-randomised-controlled-trial
#17
Daniel R Bonanno, George S Murley, Shannon E Munteanu, Karl B Landorf, Hylton B Menz
OBJECTIVES: To evaluate the effectiveness of prefabricated foot orthoses for the prevention of lower limb overuse injuries in naval recruits. METHODS: This study was a participant-blinded and assessor-blinded, parallel-group randomised controlled trial. Three-hundred and six participants aged 17-50 years who undertook 11 weeks of initial defence training at the Royal Australian Navy Recruit School (Cerberus, Australia) were randomised to a control group (flat insoles, n=153) or an intervention group (contoured, prefabricated foot orthoses, n=153)...
October 22, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28984811/dizziness-handicap-inventory-score-is-highly-correlated-with-markers-of-gait-disturbance
#18
Damiano Zanotto, Erin M Mamuyac, Adam R Chambers, John S Nemer, John A Stafford, Sunil K Agrawal, Anil K Lalwani
OBJECTIVE: To evaluate the association between Dizziness Handicap Inventory-Screening version (DHI-S) score and spatiotemporal gait parameters using SoleSound, a newly developed, inexpensive, portable footwear-based gait analysis system. STUDY DESIGN: Cross-sectional. PATIENTS: One hundred eighteen patients recruited from otology clinic. INTERVENTION(S): Subjects completed the DHI-S survey and four uninterrupted walking laps wearing SoleSound instrumented footwear on a hard, flat surface for 100 m...
December 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28982055/ontogenetic-changes-in-foot-strike-pattern-and-calcaneal-loading-during-walking-in-young-children
#19
Angel Zeininger, Daniel Schmitt, Jody L Jensen, Liza J Shapiro
The assumption that the morphology of the human calcaneus reflects high and cyclical impact forces at heel strike during adult human walking has never been experimentally tested. Since a walking step with a heel strike is an emergent behavior in children, an ontogenetic study provides a natural experiment to begin testing the relationship between the mechanics of heel strike and calcaneal anatomy. This study examined the ground reaction forces (GRFs) of stepping in children to determine the location of the center of pressure (COP) relative to the calcaneus and the orientation and magnitude of ground reaction forces during foot contact...
September 23, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28979585/posterior-tibial-tendon-dysfunction-an-overview
#20
Samuel Ka-Kin Ling, Tun Hing Lui
BACKGROUND: Adult acquired flatfoot deformity is a commonly seen condition with a large clinical spectrum. It ranges from asymptomatic subjects to severely disabled arthritic patients. Posterior tibialis tendon dysfunction is a common cause of adult acquired flatfoot deformity. METHODS: This article systematically reviews the published literature from books and journals that were either originally written or later translated into the English language regarding the subject of posterior tibialis tendon dysfunction...
2017: Open Orthopaedics Journal
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