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https://www.readbyqxmd.com/read/27933255/dynamic-loading-and-kinematics-analysis-of-vertical-jump-based-on-different-forefoot-morphology
#1
Yang Shu, Yan Zhang, Lin Fu, Gusztáv Fekete, Julien S Baker, Jianshe Li, Yaodong Gu
PURPOSE: This study examined differences in ankle motion and plantar pressure between habitually barefoot male (HBM) and habitually shod male (HSM) during vertical jump. METHODS: Eighteen habitually barefoot males and twenty habitually shod males volunteered to join the test. Distance between hallux and second toe was measured with Easy-Foot-Scan. Plantar pressure and ankle kinematics were measured with EMED force platform and Vicon motion analysis system respectively...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27933108/postural-orientation-and-equilibrium-processes-associated-with-increased-postural-sway-in-autism-spectrum-disorder-asd
#2
Zheng Wang, Rami R Hallac, Kaitlin C Conroy, Stormi P White, Alex A Kane, Amy L Collinsworth, John A Sweeney, Matthew W Mosconi
BACKGROUND: Increased postural sway has been repeatedly documented in children with autism spectrum disorder (ASD). Characterizing the control processes underlying this deficit, including postural orientation and equilibrium, may provide key insights into neurophysiological mechanisms associated with ASD. Postural orientation refers to children's ability to actively align their trunk and head with respect to their base of support, while postural equilibrium is an active process whereby children coordinate ankle dorsi-/plantar-flexion and hip abduction/adduction movements to stabilize their upper body...
2016: Journal of Neurodevelopmental Disorders
https://www.readbyqxmd.com/read/27917380/effect-of-dynamic-temperature-stimulus-to-plantar-surface-of-the-foot-in-the-standing-position
#3
Ryo Watanabe, Hiroyuki Kajimoto
We have previously found that a vertical force or tactile sensation occurs when the temperature of a participant's skin changes rapidly. In this illusion, upward motion, pressure, or force sensation is elicited when stimulus temperature rises rapidly, whereas in the opposite case, downward motion or pulling sensation is elicited. In this paper, we applied this phenomenon to the sole (plantar surface of the foot) to present the sensation of ground slope. To investigate this, we conducted an experiment that measured the correlation between stimulation temperature and front-back direction position of the center of gravity...
2016: Frontiers in Bioengineering and Biotechnology
https://www.readbyqxmd.com/read/27913178/estimating-the-material-properties-of-heel-pad-sub-layers-using-inverse-finite-element-analysis
#4
Nafiseh Ahanchian, Christopher J Nester, David Howard, Lei Ren, Daniel Parker
Detailed information about the biomechanical behaviour of plantar heel pad tissue contributes to our understanding of load transfer when the foot impacts the ground. The objective of this work was to obtain the hyperelastic and viscoelastic material properties of heel pad sub-layers (skin, micro-chamber and macro-chamber layers) in-vivo. An anatomically detailed 3D Finite Element model of the human heel was used to derive the sub-layer material properties. A combined ultrasound imaging and motorised platform system was used to compress heel pad and to create input data for the Finite Element model...
November 29, 2016: Medical Engineering & Physics
https://www.readbyqxmd.com/read/27898374/the-effect-of-intracortical-bone-pin-application-on-kinetics-and-tibiocalcaneal-kinematics-of-walking-gait
#5
Christian Maiwald, Anton Arndt, Chris Nester, Richard Jones, Arne Lundberg, Peter Wolf
Bone anchored markers using intracortical bone pins are one of the few available methods for analyzing skeletal motion during human gait in-vivo without errors induced by soft tissue artifacts. However, bone anchored markers require local anesthesia and may alter the motor control and motor output during gait. The purpose of this study was to examine the effect of local anesthesia and the use of bone anchored markers on typical gait analysis variables. Five subjects were analyzed in two different gait analysis sessions...
November 4, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27891180/the-effect-of-foot-orthoses-with-forefoot-cushioning-or-metatarsal-pad-on-forefoot-peak-plantar-pressure-in-running
#6
Michaela Hähni, Anja Hirschmüller, Heiner Baur
BACKGROUND: Foot orthoses are frequently used in sports for the treatment of overuse complaints with sufficient evidence available for certain foot-related overuse pathologies like plantar fasciitis, rheumatoid arthritis and foot pain (e.g., metatarsalgia). One important aim is to reduce plantar pressure under prominent areas like metatarsal heads. For the forefoot region, mainly two common strategies exist: metatarsal pad (MP) and forefoot cushioning (FC). The aim of this study was to evaluate which of these orthosis concepts is superior in reducing plantar pressure in the forefoot during running...
2016: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/27889978/-analysis-of-plantar-pressure-patterns-among-obese-population
#7
Eleonóra Leidecker, Péter Kellermann, Mónika Galambosné Tiszberger, Bálint Molics, Aliz Bohner-Beke, József Nyárády, János Kránicz
INTRODUCTION: Although the role of body weight on foot health and load has been widely documented in research, the effect of the extra load due to body weight on plantar pressure characteristics is not well known. AIM: The aim of this study was to evaluate the impact of obesity on plantar pressure patterns among the working-age population. METHOD: 180 participants were involved. Two groups were evaluated according to body mass index categories regarding eight regions of the plantar area, focusing on the following parameters: contact area, maximum pressure and peak pressure...
November 2016: Orvosi Hetilap
https://www.readbyqxmd.com/read/27887922/obesity-foot-pain-and-foot-disorders-in-older-men-and-women
#8
Alyssa B Dufour, Elena Losina, Hylton B Menz, Michael P LaValley, Marian T Hannan
OBJECTIVE: We investigated obesity, foot pain and selected foot disorders, and determined if associations differed by foot posture or dynamic foot function. METHODS: We included 2445 men and women (4888 feet) from the Framingham Foot Study (2002-2008). A foot examination assessed presence of disorders and pain on each foot. Body mass index (BMI, kg/m(2)) was categorized as normal (<25), overweight (25-29.99), moderate-obesity (30-34.99) severe-obesity (35+). Foot posture (normal, cavus, planus) and dynamic foot function (normal, supinated, pronated) were defined using plantar pressure measurement system...
November 22, 2016: Obesity Research & Clinical Practice
https://www.readbyqxmd.com/read/27868427/influence-of-shoe-midsole-hardness-on-plantar-pressure-distribution-in-four-basketball-related-movements
#9
Wing-Kai Lam, Wei Xuan Ng, Pui Wah Kong
This study examined how shoe midsole hardness influenced plantar pressure in basketball-related movements. Twenty male university basketball players wore customized shoes with hard and soft midsoles (60 and 50 Shore C) to perform four movements: running, maximal forward sprinting, maximal 45° cutting and lay-up. Plantar loading was recorded using an in-shoe pressure measuring system, with peak pressure (PP) and pressure time integral (PTI) extracted from 10 plantar regions. Compared with hard shoes, subjects exhibited lower PP in one or more plantar regions when wearing the soft shoes across all tested movements (Ps < 0...
November 21, 2016: Research in Sports Medicine
https://www.readbyqxmd.com/read/27865313/surgical-equinus-correction-for-the-diabetic-charcot-foot-what-the-evidence-reveals
#10
REVIEW
Claire M Capobianco
Triceps surae contracture, or equinus, is a known deforming force in the foot and ankle. Biomechanical studies have shown that ankle equinus significantly alters gait and plantar pressures, and in the diabetic neuropathic patient population, this can propagate plantar ulceration and/or Charcot neuroarthropathy (CN). Surgical correction of equinus is globally and frequently used to aid in plantar wound healing in the neuropathic diabetic patient, with and without CN. Treatment guidelines for equinus correction in this medically complex population are undefined and lack evidence from high-quality published peer-reviewed studies...
January 2017: Clinics in Podiatric Medicine and Surgery
https://www.readbyqxmd.com/read/27865154/a-narrow-bimalleolar-width-is-a-risk-factor-for-ankle-inversion-injury-in-male-military-recruits-a-prospective-study
#11
Hannah Rice, Michael Nunns, Carol House, Joanne Fallowfield, Adrian Allsopp, Sharon Dixon
BACKGROUND: Ankle inversion injuries are one of the most common and burdensome injuries in athletic populations. Research that prospectively identifies characteristics associated with this injury is lacking. This prospective study compared baseline anthropometric and biomechanical gait characteristics of military recruits who sustained an ankle inversion injury during training, with those who remained injury-free. METHODS: Bilateral plantar pressure and three-dimensional lower limb kinematics were recorded in 1065 male, injury-free military recruits, during barefoot running...
November 10, 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/27863793/plantar-pressure-asymmetry-and-risk-of-stress-injuries-in-the-foot-of-young-soccer-players
#12
Renato R Azevedo, Emmanuel S da Rocha, Pedro S Franco, Felipe P Carpes
BACKGROUND: Asymmetries in the magnitude of plantar pressure are considered a risk factor for stress fracture of the fifth metatarsal in soccer athletes. OBJECTIVE: To investigate the presence of plantar pressure asymmetries among young soccer athletes. DESIGN: Observational. SETTING: Laboratory. PARTICIPANTS: Thirty young adolescents divided into a soccer player group (n = 15) or a matched control group (n = 15)...
October 24, 2016: Physical Therapy in Sport
https://www.readbyqxmd.com/read/27858680/comparing-the-efficacy-of-exercise-internal-and-external-shoe-modification-in-pes-planus-a-clinical-and-pedobarographic-study
#13
Ozgur Taspinar, Derya Demirbag Kabayel, Ferda Ozdemir, Hakan Tuna, Yasar Keskin, Oznur Berke Mercimek, Necdet Süt, Selcuk Yavuz, Filiz Tuna
Pes planus is a condition that can cause pain along the innerfoot due to the absence or abnormal depression of the longitudinal arch. There are few studies available that compare therapy modalities used in these patients. In our study, those treated with conservative therapies - internal and external shoe modifications and pes planus exercises - were compared clinically and pedobarographyically. 60 pes planus patients were included in the study. In the first group; internal modification was performed by placing a medial longitudinal arch support inside the shoe...
November 11, 2016: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/27857640/combination-of-hip-strengthening-and-manipulative-therapy-for-the-treatment-of-plantar-fasciitis-a-case-report
#14
Bruno Dos Santos, Leticia Amaral Corrêa, Luciano Teixeira Santos, Ney Armando Meziat Filho, Thiago Lemos, Leandro Alberto Calazans Nogueira
OBJECTIVE: The purpose of this case report is to describe the management of using a combination of hip strengthening and manipulative therapy (MT) for a patient with plantar fasciitis. CLINICAL FEATURES: A 44-year-old patient reported heel pain for approximately 1 year before treatment. The patient reported plantar heel pain and tenderness at the calcaneal tuberosity. The pain was most noticeable in the morning but was reduced after a 30-minute walk. A diagnosis of plantar fasciitis was made at the initial assessment...
December 2016: Journal of Chiropractic Medicine
https://www.readbyqxmd.com/read/27853618/the-nature-of-functional-variability-in-plantar-pressure-during-a-range-of-controlled-walking-speeds
#15
Juliet McClymont, Todd C Pataky, Robin H Crompton, Russell Savage, Karl T Bates
During walking, variability in step parameters allows the body to adapt to changes in substrate or unexpected perturbations that may occur as the feet interface with the environment. Despite a rich literature describing biomechanical variability in step parameters, there are as yet no studies that consider variability at the body-environment interface. Here, we used pedobarographic statistical parametric mapping (pSPM) and two standard measures of variability, mean square error (m.s.e.) and the coefficient of variation (CV), to assess the magnitude and spatial variability in plantar pressure across a range of controlled walking speeds...
August 2016: Royal Society Open Science
https://www.readbyqxmd.com/read/27849290/the-prevention-of-diabetic-foot-ulceration-how-biomechanical-research-informs-clinical-practice
#16
Frank E DiLiberto, Judith F Baumhauer, Deborah A Nawoczenski
Background: Implementation of interprofessional clinical guidelines for the prevention of neuropathic diabetic foot ulceration has demonstrated positive effects regarding ulceration and amputation rates. Current foot care recommendations are primarily based on research regarding the prevention of ulcer recurrence and focused on reducing the magnitude of plantar stress (pressure overload). Yet, foot ulceration remains to be a prevalent and debilitating consequence of Diabetes Mellitus...
November 16, 2016: Brazilian Journal of Physical Therapy
https://www.readbyqxmd.com/read/27847714/effects-of-plantar-flexor-muscle-static-stretching-alone-and-combined-with-massage-on-postural-balance
#17
Ladan Hemmati, Zahra Rojhani-Shirazi, Samaneh Ebrahimi
OBJECTIVE: To evaluate and compare the effects of stretching and combined therapy (stretching and massage) on postural balance in people aged 50 to 65 years. METHODS: Twenty-three subjects participated in this nonrandomized clinical trial study. Each participant randomly received plantar flexor muscle stretching (3 cycles of 45 seconds with a 30-second recovery period between cycles) alone and in combination with deep stroking massage (an interval of at least 30 minutes separated the two interventions)...
October 2016: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/27846395/mid-term-functional-outcome-of-a-total-arthroplasty-of-the-first-metatarsophalangeal-joint
#18
Corina Nüesch, Annegret Mündermann, Monika Horisberger
BACKGROUND: Arthroplasty of the first metatarsophalangeal joint is an alternative treatment option for end-stage hallux rigidus to the current gold standard of arthrodesis. The aim of this study was to investigate the mid-term functional outcome of an anatomically shaped prosthesis for the first metatarsophalangeal joint using pedobarography. METHODS: Ten patients (12 affected feet; age at surgery: 62.1 (SD: 7.2) years) were investigated preoperatively and 52 (SD: 3) months postoperatively using pedobarography (EMED, novel GmbH, Munich, Germany)...
November 10, 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/27827282/primary-wound-closure-of-diabetic-foot-ulcers-by-debridement-and-stitching
#19
M E Ahmed, M S Mohammed, S I Mahadi
OBJECTIVE: The role of stitching in healing diabetic foot ulcers (DFUs) has little attention, with few reports published on the technique. This study aimed to report on the role of stitching in healing of neuropathic DFUs. METHOD: This comparative study was between patients with diabetes with neuropathic foot ulcers who had undergone wound stitching and those on conventional wound care. The study was carried in Jabir Abu Eliz Diabetic Center Khartoum (JADC) during between January 1 2011 and January 1 2013...
November 2, 2016: Journal of Wound Care
https://www.readbyqxmd.com/read/27824259/preliminary-evaluation-of-a-cycling-cleat-designed-for-diabetic-foot-ulcers
#20
Ryan T Crews, Steven R Smith, Ramin Ghazizadeh, Sai Yalla, Stephanie C Wu
BACKGROUND: Offloading devices for diabetic foot ulcers (DFU) generally restrict exercise. In addition to traditional health benefits, exercise could benefit DFU by increasing blood flow and acting as thermotherapy. This study functionally evaluated a cycling cleat designed for forefoot DFU. METHODS: Fifteen individuals at risk of developing a DFU used a recumbent stationary bicycle to complete one 5-minute cycling bout with the DFU cleat on their study foot and one 5-minute bout without it...
November 8, 2016: Journal of the American Podiatric Medical Association
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