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Gabriel Gijon-Nogueron, Laura Ramos-Petersen, Ana Belen Ortega-Avila, Jose Miguel Morales-Asencio, Silvia Garcia-Mayor
BACKGROUND: Epidemiological studies consistently report a 90% prevalence of foot pain. Mechanical and other non-pharmacological interventions such as orthoses and footwear can play an important role in managing foot pathology in patients whose systemic disease is controlled. The effectiveness of treatment with insoles has been examined in various randomised controlled trials, which have reported immediate clinical improvements, with reduced foot pain and disability and enhanced functionality...
June 19, 2018: Quality of Life Research
Astrid Zech, Ranel Venter, Johanna E de Villiers, Susanne Sehner, Karl Wegscheider, Karsten Hollander
Background: The objective of this study was to evaluate the association between growing up barefoot or shod and the development of motor performance during childhood and adolescence. Methods: Habitual barefoot and shod children and adolescents between 6 and 18 years were recruited in South Africa and Germany. Participants completed balance, standing long jump and 20 m sprint tests in barefoot and shod conditions. Outcomes were analyzed in separate mixed-effects linear regressions for three age groups according to stages of development (6-10, 11-14, and 15-18 years)...
2018: Frontiers in Pediatrics
Ramaswamy Premkumar, Pitchaimuthu Rajan, Jeeva Rima, Joseph Richard
Background.: Inappropriate footwear may be a major cause of foot ulceration among patients with diabetic neuropathy in India. No study has specifically examined the types of footwear or its components in patients with diabetes mellitus and their role in causing foot ulcers. We analysed the role of commonly used footwear in India in inducing first foot ulcers (FFU) in people with diabetes. Methods.: Of 4800 patients with diabetes attending our centre over 1 year, 301 had FFU from different causes...
September 2017: National Medical Journal of India
Ignacio Sanpera, Guillem Frontera-Juan, Julia Sanpera-Iglesias, Laura Corominas-Frances
Background and purpose - Pes cavovarus (PCV) is a complex deformity, frequently related to neurological conditions and associated with foot pain, callosities, and walking instability. The deformity has the tendency to increase during growth. Orthotic treatment is ineffective and surgery may be troublesome. We present the preliminary results of a new mini-invasive surgical technique for correction of this foot deformity. Patients and methods - We operated on 13 children (24 feet), age 7-13 years. In 7 children the deformity was neurological in origin...
June 18, 2018: Acta Orthopaedica
Farhan Rasool, Virendra N Sehgal, Govind Srivastava, Ashok Aggarwal, Iffat Hassan
Footwear contact dermatitis is a common problem with multifactorial exogenous, as well as endogenous, etiologies. Patch testing is the gold standard for detection of the possible contactants. A cross-sectional study was conducted in 108 outpatients over a period of 18 months. Demographic data comprising age, sex, and occupation were collected. Details of clinical and laboratory investigations were used to define the incriminating ingredient(s), subsequently confirmed by patch test using Indian standard and footwear series approved by the Contact and Occupational Dermatitis Forum of India...
2018: Skinmed
Christine D Pollard, Justin A Ter Har, J J Hannigan, Marc F Norcross
Background: Lower extremity injuries are common among runners. Recent trends in footwear have included minimal and maximal running shoe types. Maximal running shoes are unique because they provide the runner with a highly cushioned midsole in both the rearfoot and forefoot. However, little is known about how maximal shoes influence running biomechanics. Purpose: To examine the influence of maximal running shoes on biomechanics before and after a 5-km (5K) run as compared with neutral running shoes...
June 2018: Orthopaedic Journal of Sports Medicine
Mustafa Mohamed Osman Elhadi, Christina Zong-Hao Ma, Wing Kai Lam, Winson Chiu-Chun Lee
BACKGROUND: Long-distance walking is a convenient way for prompting physical activity of elderly people. However, walking ability declines with aging. RESEARCH QUESTION: This study assessed if silicone insoles with heel lifts (named here the prescribed insoles) could facilitate long-distance walking of older adults. METHODS: Fifteen adults aged over 65, who did not have obvious lower-limb problems, walked on a treadmill for totally 60 min in two separate walking sessions: 1) with the prescribed insoles, and 2) with original insoles of the standardized shoes...
June 4, 2018: Gait & Posture
Jennifer M Neugebauer, Michael LaFiandra
INTRODUCTION: Ground reaction forces (GRFs) during load carriage differ from unloaded walking. Methods to quantify peak vertical GRF (pGRFvert) of Soldiers walking with loads outside of a laboratory are needed in order to study GRFs during operationally relevant tasks. PURPOSE: Develop a statistically based model to predict pGRFvert during loaded walking from ActiGraph GT3X+ activity monitor (AM) vertical acceleration. METHODS: 15 male Soldiers (25...
June 8, 2018: Medicine and Science in Sports and Exercise
Marcin Derlatka, Mariusz Bogdan
Biometrics is currently an area that is both very interesting as well as rapidly growing. Among various types of biometrics the human gait recognition seems to be one of the most intriguing. However, one of the greatest problems within this field of biometrics is the change in gait caused by footwear. A change of shoes results in a significant lowering of accuracy in recognition of people. The following work presents a method which uses data gathered by two sensors: force plates and Microsoft Kinect v2 to reduce this problem...
May 21, 2018: Sensors
Moira McRitchie, Helen Branthwaite, Nachiappan Chockalingam
Background: A high percentage of the population report footwear related foot pain, yet there is limited research on the effect footwear has on the development of this pain. The aim of this study was to establish whether footwear purchased by patients have an association with foot pain and what choices determined a purchase decision. Methods: Shape and size measurements of the dominant foot and footwear (length and width) were taken from 67 female participants who routinely received podiatric treatment...
2018: Journal of Foot and Ankle Research
Arian Iraqi, Rakié Cham, Mark S Redfern, Kurt E Beschorner
Measuring the available coefficient of friction (ACOF) of a shoe-floor interface is influenced by the choice of normal force, shoe-floor angle and sliding speed. The purpose of this study was to quantify the quality of slip prediction models based on ACOF values measured across different testing conditions. A dynamic ACOF measurement device that tests entire footwear specimens (Portable Slip Simulator) was used. The ACOF was measured for nine different footwear-contaminant combinations with two levels of normal force, sliding speed and shoe-floor angle...
July 2018: Applied Ergonomics
Hadi Rahemi, Hung Nguyen, Hyoki Lee, Bijan Najafi
Frailty assessment is dependent on the availability of trained personnel and it is currently limited to clinic and supervised setting. The growing aging population has made it necessary to find phenotypes of frailty that can be measured in an unsupervised setting for translational application in continuous, remote, and in-place monitoring during daily living activity, such as walking. We analyzed gait performance of 161 older adults using a shin-worn inertial sensor to investigate the feasibility of developing a foot-worn sensor to assess frailty...
June 1, 2018: Sensors
Hunter D Perala, Margaret A Wilson, Boyi Dai
Footwear in dance has been studied for support and cushioning, but little research has been conducted on free moments, which may result from high frictional coefficients. Conversely, insufficient friction between shoes and floors may increase the risk of falls and compromise dance performance. The purpose of this study was to examine the effect of different types of footwear with different coefficients of friction on peak and average free moments during a rotational movement in country swing dance. Fifteen country swing dancers completed a rotational movement under four footwear conditions: barefoot, rubber-bottom boots, leather-bottom boots, and running shoes...
June 15, 2018: Journal of Dance Medicine & Science
Fabian Mager, Jim Richards, Malika Hennies, Eugen Dötzel, Ambreen Chohan, Alex Mbuli, Felix Capanni
Forefoot stiffness has been shown to influence joint biomechanics. However, little or no data exists on metatarsophalangeal stiffness. Twenty-four healthy rearfoot strike runners were recruited from a staff and student population at the University of Central Lancashire. Five repetitions of shod, self-selected speed level walking and jogging were performed. Kinetic and kinematic data were collected using retro-reflective markers placed on the lower limb and foot, to create a three-segment foot model using the Calibrated Anatomical System Technique...
May 29, 2018: Journal of Applied Biomechanics
K Lindlein, A Zech, A Zoch, K-M Braumann, K Hollander
OBJECTIVES: Ongoing debates about benefits and risks of barefoot- and minimally-shod running have, to date, revealed no conclusive findings for long-term effects on physical performance. The purpose of this study was to examine the effects of an 8-week transition to minimalist footwear (MFW) on running economy (RE). DESIGN: Randomised controlled trial. METHODS: Thirty-two male, habitually-shod runners were assigned randomly to an 8-week training intervention either in minimalist (=intervention group) or conventional running shoes (=control group)...
May 25, 2018: Journal of Science and Medicine in Sport
Michael Buchecker, Erich Müller, Stefan Wegenkittl, Gerold Sattlecker, Thomas Stöggl
This study evaluated the short- and long-term effects of unstable shoes (US) on the structure/shape of variability in gait. Therefore, sample entropy (SEn) values of centre of mass velocity (vCOM) signals in medio-lateral (ML), anterior-posterior (AP) and vertical (VT) direction were computed for 12 sport students during walking with US and flat shoes (FS) before and after a 10-week accommodation period. Statistical analysis included two-way repeated-measures ANOVA followed by post hoc tests where appropriate (α = 0...
May 23, 2018: Human Movement Science
Danny Moody, Iain Hunter, Sarah Ridge, J William Myrer
There are many different types of footwear available for runners in today's market. Many of these shoes claim to help runners run more efficiently by altering an individual's stride mechanics. Minimalist footwear claims to aid runners run more on their forefeet whereas more traditional footwear provides more cushioning specifically for a heel first landing. The purpose of this paper was to determine if runners, who were accustomed to running in traditional footwear would alter their running mechanics while running acutely in various types of minimalist footwear...
2018: International Journal of Exercise Science
Zoe Y S Chan, Ivan P H Au, Fannie O Y Lau, Eric C K Ching, Janet H Zhang, Roy T H Cheung
A new model of running shoes which features an extreme cushioning and an oversized midsole, known as the maximalist (MAX) was launched. This design claims to provide excellent shock absorption, particularly during downhill running. This study sought to assess the effects of MAX on the external impact loading, footstrike pattern, and stride length during level ground and downhill running on an instrumented treadmill. Twenty-seven distance runners completed four 5-minute running trials in the two footwear conditions (MAX and traditional running shoes (TRS)) on a level surface (0%) and downhill (10%-declination)...
May 24, 2018: European Journal of Sport Science
Stephen P Messier, David F Martin, Shannon L Mihalko, Edward Ip, Paul DeVita, D Wayne Cannon, Monica Love, Danielle Beringer, Santiago Saldana, Rebecca E Fellin, Joseph F Seay
BACKGROUND: The National Center for Injury Prevention and Control, noting flaws in previous running injury research, called for more rigorous prospective designs and comprehensive analyses to define the origin of running injuries. PURPOSE: To determine the risk factors that differentiate recreational runners who remain uninjured from those diagnosed with an overuse running injury during a 2-year observational period. STUDY DESIGN: Cohort study; Level of evidence, 2...
May 1, 2018: American Journal of Sports Medicine
Marie Mantini Blazer, Laura Beth Jamrog, Lauren Lindsay Schnack
It is important to be properly evaluated for shoes to avoid complications. Ill-fitting shoes can lead to pathologies in different populations. The focus of this article is to review the components and function of a basic athletic-type shoe, general shoe-fitting techniques, and selecting appropriate footwear for various populations including those with diabetes, elderly, and females. Poorly fitting shoes can exacerbate structural foot deformities. Unevenly distributed plantar pressures and wear can lead to ulcerations in diabetic populations...
May 2018: Orthopaedic Nursing
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