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https://www.readbyqxmd.com/read/27891180/the-effect-of-foot-orthoses-with-forefoot-cushioning-or-metatarsal-pad-on-forefoot-peak-plantar-pressure-in-running
#1
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/27843284/studying-maximum-plantar-stress-per-insole-design-using-foot-ct-scan-images-of-hyperelastic-soft-tissues
#2
Ali Sarikhani, Abbas Motalebizadeh, Sasan Asiaei, Babak Kamali Doost Azad
The insole shape and the resulting plantar stress distribution have a pivotal impact on overall health. In this paper, by Finite Element Method, maximum stress value and stress distribution of plantar were studied for different insoles designs, which are the flat surface and the custom-molded (conformal) surface. Moreover, insole thickness, heel's height, and different materials were used to minimize the maximum stress and achieve the most uniform stress distribution. The foot shape and its details used in this paper were imported from online CT-Scan images...
2016: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/27824259/preliminary-evaluation-of-a-cycling-cleat-designed-for-diabetic-foot-ulcers
#3
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
https://www.readbyqxmd.com/read/27784299/the-configuration-of-plantar-pressure-sensing-cells-for-wearable-measurement-of-cop-coordinates
#4
Dian Wang, Ping Cai, Zhiyong Mao
BACKGROUND: Wearable measurement of center of pressure (COP) coordinates is the key of obtaining the measurement of natural gait. Plantar pressure insole is the right sensing unit for plantar pressure monitoring for long-term outdoor measurements and the control of walking assisting exoskeleton robot. It's necessary to study the configuration of pressure sensing cells. METHODS: This study explored the sensing cell configuration for the plantar pressure insole. The data of plantar pressure of walking is collected for layout variants...
October 26, 2016: Biomedical Engineering Online
https://www.readbyqxmd.com/read/27782089/plantar-pressure-detection-with-fiber-bragg-gratings-sensing-system
#5
Tsair-Chun Liang, Jhe-Jhun Lin, Lan-Yuen Guo
In this paper, a novel fiber-optic sensing system based on fiber Bragg gratings (FBGs) to measure foot plantar pressure is proposed. This study first explores the Pedar-X insole foot pressure types of the adult-size chart and then defines six measurement areas to effectively identify four foot types: neutral foot, cavus foot, supinated foot and flat foot. The plantar pressure signals are detected by only six FBGs, which are embedded in silicone rubber. The performance of the fiber optic sensing is examined and compared with a digital pressure plate of i-Step P1000 with 1024 barometric sensors...
October 22, 2016: Sensors
https://www.readbyqxmd.com/read/27662483/in-shoe-pressure-measurements-during-different-motor-tasks-while-wearing-safety-shoes-the-effect-of-custom-made-insoles-vs-prefabricated-and-off-the-shelf
#6
Paolo Caravaggi, Alessia Giangrande, Giada Lullini, Giuseppe Padula, Lisa Berti, Alberto Leardini
Health and safety regulations in many countries require workers at risk to wear safety shoes in a factory environment. These shoes are often heavy, rigid, and uncomfortable. Wearing safety shoes daily leads to foot problems, discomfort and fatigue, resulting also in the loss of numerous working days. Currently, knowledge of the biomechanical effects of insoles in safety shoes, during working activities, is very limited. Seventeen workers from a metalworking factory were selected and clinically examined for any foot conditions...
September 11, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27643676/material-properties-of-the-heel-fat-pad-across-strain-rates
#7
Grigoris Grigoriadis, Nicolas Newell, Diagarajen Carpanen, Alexandros Christou, Anthony M J Bull, Spyros D Masouros
The complex structural and material behaviour of the human heel fat pad determines the transmission of plantar loading to the lower limb across a wide range of loading scenarios; from locomotion to injurious incidents. The aim of this study was to quantify the hyper-viscoelastic material properties of the human heel fat pad across strains and strain rates. An inverse finite element (FE) optimisation algorithm was developed and used, in conjunction with quasi-static and dynamic tests performed to five cadaveric heel specimens, to derive specimen-specific and mean hyper-viscoelastic material models able to predict accurately the response of the tissue at compressive loading of strain rates up to 150s(-1)...
September 8, 2016: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/27627989/effects-of-long-term-stimulation-of-textured-insoles-on-postural-control-in-health-elderly
#8
Giuseppe Annino, Francesco Palazzo, Mohammad Alwardat, Vincenzo Manzi, Pietro Lebone, Virginia Tancredi, Paola Sinibaldi Salimei, Alfio Caronti, Michele Panzarino, Elvira Padua
BACKGROUND: The aim of this study was to confirm the effects of long term (chronic) stimulating surface (textured insole) on body balance of elderly people. METHODS: Twenty-four healthy elderly individuals were randomly distributed in two groups: control and experimental (67.75 ± 6.04 yrs, 74.55±12.14 kg, 163.7 ± 8.55 cm, 27.75 ± 3.04 kg/m2). Over one month, Control Group (CG) used smooth insoles and the Experimental Group (ExG) used textured insoles every day...
September 15, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27588676/effect-of-heel-heights-on-female-postural-control-during-standing-on-a-dynamic-support-surface-with-sinusoidal-oscillations
#9
Dong Sun, Yaodong Gu, Qichang Mei, Yanhao Shao, Jianjun Sun, Justin Fernandez
The authors aimed to investigate female balance or stability control with comparative analysis of the center of pressure trajectory and plantar pressure distribution with different high-heeled shoes while standing on a dynamic surface with multidirectional perturbations. College females with at least 2 years' history of wearing high-heel shoes voluntarily participated in the test with a Novel Pedar insole (Novel, GmBH, Munich, Germany. With heels height increasing, the pressure time integral obviously transfer to the medial forefoot region, with center of pressure trajectory medially deviated significantly, either under anteroposterior or mediolateral perturbations...
September 2, 2016: Journal of Motor Behavior
https://www.readbyqxmd.com/read/27579800/how-do-leg-press-exercises-comply-with-limited-weight-bearing
#10
Linda Wild, Hans-Dieter Carl, Tobias Golditz, Bernd Swoboda, Thilo Hotfiel
OBJECTIVES: To investigate foot loadings in different leg press settings with respect to a possible graduation of weight bearing (WB). DESIGN: Case series. SETTINGS: Assessing plantar force values by means of dynamic pedobarography taken place in orthopaedic departments' rehab center. PARTICIPANTS: 15 healthy students (9 men and 6 women, age 23 ± 2, weight 75 ± 6 kg) were recruited as participants from the medical faculty...
May 10, 2016: Physical Therapy in Sport
https://www.readbyqxmd.com/read/27532798/effectiveness-of-offloading-methods-in-preventing-primary-diabetic-foot-ulcers-in-adults-with-diabetes-a-systematic-review
#11
Lisa Heuch, Judith Streak Gomersall
BACKGROUND: The incidence of foot ulceration related to diabetes is increasing. Many foot care professionals recommend offloading measures as part of management strategies for modulating excess pressure to prevent development of diabetic foot ulcers (DFUs). These measures may include padding, insoles/orthotic devices and footwear. There is a lack of evidence-based guidance on the effectiveness of the different offloading options for preventing primary ulceration in those with diabetes...
July 2016: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/27529421/comparative-clustering-of-plantar-pressure-distributions-in-diabetics-with-polyneuropathy-may-be-applied-to-reveal-inappropriate-biomechanical-stress
#12
Uli Niemann, Myra Spiliopoulou, Thorsten Szczepanski, Fred Samland, Jens Grützner, Dominik Senk, Antao Ming, Juliane Kellersmann, Jan Malanowski, Silke Klose, Peter R Mertens
In diabetic patients, excessive peak plantar pressure has been identified as major risk factor for ulceration. Analyzing plantar pressure distributions potentially improves the identification of patients with a high risk for foot ulceration development. The goal of this study was to classify regional plantar pressure distributions. By means of a sensor-equipped insole, pressure recordings of healthy controls (n = 18) and diabetics with severe polyneuropathy (n = 25) were captured across eight foot regions. The study involved a controlled experimental protocol with multiple sessions, where a session contained several cycles of pressure exposure...
2016: PloS One
https://www.readbyqxmd.com/read/27515436/improving-the-ground-reaction-force-prediction-accuracy-using-one-axis-plantar-pressure-expansion-of-input-variable-for-neural-network
#13
Su-Bin Joo, Seung Eel Oh, Joung Hwan Mun
In this study, we describe a method to predict 6-axis ground reaction forces based solely on plantar pressure (PP) data obtained from insole type measurement devices free of space limitations. Because only vertical force is calculable from PP data, a wavelet neural network derived from a non-linear mapping function was used to obtain 3-axis ground reaction force in medial-lateral (GRFML), anterior-posterior (GRFAP) and vertical (GRFV) and 3-axis ground reaction moment in sagittal (GRFS), frontal (GRFF) and transverse (GRFT) data for the remaining axes and planes...
October 3, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27488038/influence-of-different-safety-shoes-on-gait-and-plantar-pressure-a-standardized-examination-of-workers-in-the-automotive-industry
#14
Elke Ochsmann, Ulrike Noll, Rolf Ellegast, Ingo Hermanns, Thomas Kraus
OBJECTIVE: Working conditions, such as walking and standing on hard surfaces, can increase the development of musculoskeletal complaints. At the interface between flooring and musculoskeletal system, safety shoes may play an important role in the well-being of employees. The aim of this study was to evaluate the effects of different safety shoes on gait and plantar pressure distributions on industrial flooring. METHODS: Twenty automotive workers were individually fitted out with three different pairs of safety shoes ( "normal" shoes, cushioned shoes, and midfoot bearing shoes)...
September 30, 2016: Journal of Occupational Health
https://www.readbyqxmd.com/read/27475620/is-passive-metatarsophalangeal-joint-stiffness-related-to-leg-stiffness-vertical-stiffness-and-running-economy-during-sub-maximal-running
#15
Hok Sum Man, Wing Kai Lam, Justin Lee, Catherine M Capio, Aaron Kam Lun Leung
This study examined whether passive metatarsophalangeal joints (MPJ) stiffness was associated with leg stiffness (Kleg) vertical stiffness (Kvert) and running economy (RE) during sub-maximal running. Nine male experienced runners underwent passive MPJ stiffness measurements in standing and sitting positions followed by sub-maximal running on an instrumented treadmill. With the individual foot position properly aligned, the MPJ passive stiffness in both sitting (MPJsit) and standing positions (MPJstand) were measured with a computerized dynamometer...
September 2016: Gait & Posture
https://www.readbyqxmd.com/read/27418948/effects-of-custom-made-textile-insoles-on-plantar-pressure-distribution-and-lower-limb-emg-activity-during-turning
#16
W T Lo, D P Wong, K L Yick, S P Ng, J Yip
BACKGROUND: Turning during locomotion involves considerable changes of the body's center of mass and reduced stability, as well as lower limb kinematics and kinetics. However, many previous studies have been carried out to evaluate the effectiveness and applications of orthotic insoles as well as different types of orthotic materials in various clinical symptoms, which are focused primarily on straight line walking. Hence, the influence of custom-made insoles with the use of advanced three-dimensional spacer fabrics on biomechanics parameters in terms of plantar pressure distribution and lower limb electromyography during turning movement was studied...
2016: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/27417976/adding-stiffness-to-the-foot-modulates-soleus-force-velocity-behaviour-during-human-walking
#17
Kota Z Takahashi, Michael T Gross, Herman van Werkhoven, Stephen J Piazza, Gregory S Sawicki
Previous studies of human locomotion indicate that foot and ankle structures can interact in complex ways. The structure of the foot defines the input and output lever arms that influences the force-generating capacity of the ankle plantar flexors during push-off. At the same time, deformation of the foot may dissipate some of the mechanical energy generated by the plantar flexors during push-off. We investigated this foot-ankle interplay during walking by adding stiffness to the foot through shoes and insoles, and characterized the resulting changes in in vivo soleus muscle-tendon mechanics using ultrasonography...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27399718/portable-system-for-monitoring-the-microclimate-in-the-footwear-foot-interface
#18
José de Jesús Sandoval-Palomares, Javier Yáñez-Mendiola, Alfonso Gómez-Espinosa, José Martin López-Vela
A new, continuously-monitoring portable device that monitors the diabetic foot has shown to help in reduction of diabetic foot complications. Persons affected by diabetic foot have shown to be particularly sensitive in the plantar surface; this sensitivity coupled with certain ambient conditions may cause dry skin. This dry skin leads to the formation of fissures that may eventually result in a foot ulceration and subsequent hospitalization. This new device monitors the micro-climate temperature and humidity areas between the insole and sole of the footwear...
July 8, 2016: Sensors
https://www.readbyqxmd.com/read/27379857/-hallux-amputation
#19
S Ochman, M J Raschke, C Stukenborg-Colsman, K Daniilidis
OBJECTIVE: Debridement of infected tissue with the main aim being the re-establishment of mobilization with preservation of standing and walking ability. Prevention of secondary pressure points or amputations due to inadequate resection or deficient soft tissue cover. INDICATIONS: In the case of increasing necrosis of the big toe, surgical abrasion and/or amputation is considered unavoidable. Other indications where surgery could be considered include diabetes and its associated angiopathies together with peripheral arterial angiopathy...
October 2016: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/27264401/an-optimized-design-of-in-shoe-heel-lifts-reduces-plantar-pressure-of-healthy-males
#20
Xianyi Zhang, Bo Li, Kaiyun Liang, Qiufeng Wan, Benedicte Vanwanseele
Conventional heel lift with a flat surface increases the risk of foot problems related to higher plantar pressure and decreased stability. In this study, an optimized design of in-shoe heel lifts developed to maintain the midfoot function was tested to investigate if the plantar pressure distribution was improved. The design was based on three dimensional foot plantar contour which was captured by an Infoot 3D scanning system while the heel was elevated by a heel wedge. To facilitate midfoot function, an arch support was designed to support the lateral longitudinal arch, while allowing functional movement of the medial longitudinal arch...
June 2016: Gait & Posture
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