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https://www.readbyqxmd.com/read/29286982/concurrent-validity-of-the-zeno-walkway-for-measuring-spatiotemporal-gait-parameters-in-older-adults
#1
Srikant Vallabhajosula, Sarah K Humphrey, Alys J Cook, Jane E Freund
BACKGROUND AND PURPOSE: Previous studies have shown that older adults at high fall risk exhibit altered spatiotemporal gait parameters such as lesser gait speed, shorter step length, and greater step width compared with their healthy counterparts. Measurement of these gait parameters for older adults can play a pivotal role in clinical evaluation. While the GAITRite walkway has been previously validated and used extensively for research purposes, the Zeno walkway validity has not been established...
December 28, 2017: Journal of Geriatric Physical Therapy
https://www.readbyqxmd.com/read/29281812/dynamic-joint-stiffness-of-the-ankle-in-healthy-and-rheumatoid-arthritis-post-menopausal-women
#2
Pedro Aleixo, José Vaz-Patto, Helena Moreira, João Abrantes
The purpose of this study was to compare rheumatoid arthritis post-menopausal women (RAPW) with pathological involvement of the lower limb joints and age-matched healthy post-menopausal women (AHPW) in regard to the dynamic joint stiffness of the ankle (DJSankle) during the stance phase of gait. Data were collected from 18 RAPW and 18 AHPW. Gait was assessed by a three-dimensional motion analysis system synchronised with a force plate. Subjects walked barefoot at natural and self-selected speed, performing 14 valid trials (comprising 7 left and 7 right foot-steps on a force plate)...
December 13, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29250122/estimating-the-health-risk-associated-with-the-use-of-ecological-sanitation-toilets-in-malawi
#3
Save Kumwenda, Chisomo Msefula, Wilfred Kadewa, Bagrey Ngwira, Tracy Morse
Use of Ecological Sanitation (EcoSan) sludge is becoming popular due to increasing price of organic fertilizers in Malawi; however, there is little evidence on the associated risks. Quantitative microbiological risk assessment (QMRA) was done to determine health risks associated with use of EcoSan. Pathogens considered included Escherichia coli (E. coli), Salmonella, and soil transmitted helminths (STHs). Exponential and Beta Poisson models were used to estimate the risk from helminthic and bacterial pathogens, respectively...
2017: Journal of Environmental and Public Health
https://www.readbyqxmd.com/read/29238158/full-step-cycle-kinematic-and-kinetic-comparison-of-barefoot-walking-and-a-traditional-shoe-walking-in-healthy-youth-insights-for-barefoot-technology
#4
Yi Xu, Qinghua Hou, Chuhuai Wang, Andrew J Sellers, Travis Simpson, Bradford C Bennett, Shawn D Russell
Objective: Barefoot technology shoes are becoming increasingly popular, yet modifications are still needed. The present study aims to gain valuable insights by comparing barefoot walking to neutral shoe walking in a healthy youth population. Methods: 28 healthy university students (22 females and 6 males) were recruited to walk on a 10-meter walkway both barefoot and in neutral running shoes at their comfortable walking speed. Full step cycle kinematic and kinetic data were collected using an 8-camera motion capture system...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/29228408/-biomechanical-evaluation-of-rehabilitation-after-surgical-repair-of-achilles-tendon-ruptures
#5
Marlene Mauch, Markus Ulrich, Xaver Kaelin, Bernhard Segesser, Jochen Paul
Background Muscles and tendons are subjected to a high level of stress in everyday life and sports. This often leads to injuries and is associated with training failure and reduced performance as well as with high costs for treatment and rehabilitation. Fast and successful treatment is therefore very important, both from an athletic and economic point of view. This study aims to demonstrate the relevance of biomechanical procedures for the objective monitoring of rehabilitation. At the same time, the results are to be used to establish progress and evaluation criteria for an efficient and controlled rehabilitation...
December 2017: Sportverletzung Sportschaden: Organ der Gesellschaft Für Orthopädisch-Traumatologische Sportmedizin
https://www.readbyqxmd.com/read/29217955/determinants-of-podoconiosis-a-case-control-study
#6
Berhanu Elfu Feleke
Background: Podoconiosis is a non-filarial swelling of lower extremity endemic in tropical regions, North America and India. The etiology and pathophysiology of the disease remain unknown. The objective of this study was to identify the determinants of Podoconiosis. Methods: Unmatched case control study design was conducted. The sample size was calculated using Epi-info soft ware: 95% CI, 85% power, control to case ratio of 2:1, expected frequency of barefoot among controls 50%, odds ratio of 1...
September 2017: Ethiopian Journal of Health Sciences
https://www.readbyqxmd.com/read/29214168/how-well-can-modern-nonhabitual-barefoot-youth-adapt-to-barefoot-and-minimalist-barefoot-technology-shoe-walking-in-regard-to-gait-symmetry
#7
Y Xu, Q Hou, C Wang, T Simpson, B Bennett, S Russell
We aim to test how well modern nonhabitual barefoot people can adapt to barefoot and Minimalist Bare Foot Technology (MBFT) shoes, in regard to gait symmetry. 28 healthy university students (22 females/6 males) were recruited to walk on a 10-meter walkway randomly on barefoot, in MBFT shoes, and in neutral running shoes at their comfortable walking speed. Kinetic and kinematic data were collected using an 8-camera motion capture system. Data of joint angles, joint forces, and joint moments were extracted to compute a consecutive symmetry index...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29213246/the-influence-of-footwear-on-the-modular-organization-of-running
#8
Alessandro Santuz, Antonis Ekizos, Lars Janshen, Vasilios Baltzopoulos, Adamantios Arampatzis
For most of our history, we predominantly ran barefoot or in minimalist shoes. The advent of modern footwear, however, might have introduced alterations in the motor control of running. The present study investigated shod and barefoot running under the perspective of the modular organization of muscle activation, in order to help addressing the neurophysiological factors underlying human locomotion. On a treadmill, 20 young and healthy inexperienced barefoot runners ran shod and barefoot at preferred speed (2...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29207819/effect-of-rocker-soled-shoe-design-on-walking-economy-in-females-with-pes-planus
#9
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
#10
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/29154264/the-effect-of-a-single-massage-based-on-the-tensegrity-principle-on-postural-stability-in-young-women
#11
Błażej Cieślik, Ireneusz Podsiadły, Michał Kuczyński, Bożena Ostrowska
OBJECTIVE: The aim of this study was to investigate the effects of normalized muscle tension via tensegrity-based massage on postural stability in a sample of female young adults. METHODS: Nineteen females aged 21.8 ± 1.9 years were recruited presenting abnormal tension at muscles adhering to any of the following structural sites: superior iliac spine, lateral sacropelvic surface, linea aspera at 1/2 of femur length, and superior nuchal line of the occiput. Balance and postural control were assessed during bipedal stance using a force platform in multiple conditions: hard surface or soft foam surface with the head in either a neutral posture or tilted backward...
November 6, 2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/29145687/foot-strike-patterns-differ-between-children-and-adolescents-growing-up-barefoot-vs-shod
#12
Karsten Hollander, Johanna Elsabe de Villiers, Ranel Venter, Susanne Sehner, Karl Wegscheider, Klaus-Michael Braumann, Astrid Zech
Effects of early and permanent footwear use are not well understood. The aim of this study was to investigate the effects of habituation to footwear on foot strike patterns of children and adolescents. Healthy habitually barefoot and shod participants (aged 6-18 years) from South Africa (n=288) and Germany (n=390) performed multiple 20-m jogging and running trials with and without shoes. Each foot strike was captured using a high-speed camera to determine a rearfoot or non-rearfoot strike. The probability of a rearfoot strike in both cohorts and each age was analyzed by using a mixed-effects logistic regression adjusted for possible confounders...
November 16, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29139576/effects-of-lateral-offset-sole-shoes-on-knee-adduction-moment-in-women-with-medial-compartment-knee-osteoarthritis
#13
Woo Young Jang, Hae Woon Jung, Gi Won Choi, Hyun Min Lee, Hae Soo Park, Soon Hyuck Lee
This study aimed to determine the impact of wearing a lateral-offset sole shoe (LOSS) on knee adduction moment (KAM) in patients with medial knee osteoarthritis (OA). From December 2012 to November 2016, patients with medial knee OA were recruited. Ninety-three knees (50 left, 43 right) of 93 female patients were analyzed. The first peak KAMs were measured with patients 1) walking barefoot, 2) walking in conventional shoes, and 3) walking in LOSSs. The patients had grade 1 (n=19), grade 2 (n=49), grade 3 (n=20), and grade 4 (n=5) knee OA...
November 15, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29135646/foot-structure-and-function-in-habitually-barefoot-and-shod-adolescents-in-kenya
#14
Herje Aibast, Paul Okutoyi, Timothy Sigei, Walter Adero, Danny Chemjor, Neford Ongaro, Noriyuki Fuku, Kenn Konstabel, Carol Clark, Daniel E Lieberman, Yannis Pitsiladis
Habitually barefoot (HB) children from the Kalenjin tribe of Kenya are known for their high physical activity levels. To date, there has been no comprehensive assessment of foot structure and function in these highly active and HB children/adolescents and link with overuse injuries. PURPOSE: The aim of this research is to assess foot structure, foot function, injury and physical activity levels in Kenyan children and adolescents who are HB compared with those who were habitually shod (HS)...
November 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/29133920/energy-neutral-the-human-foot-and-ankle-subsections-combine-to-produce-near-zero-net-mechanical-work-during-walking
#15
Kota Z Takahashi, Kate Worster, Dustin A Bruening
The human foot and ankle system is equipped with structures that can produce mechanical work through elastic (e.g., Achilles tendon, plantar fascia) or viscoelastic (e.g., heel pad) mechanisms, or by active muscle contractions. Yet, quantifying the work distribution among various subsections of the foot and ankle can be difficult, in large part due to a lack of objective methods for partitioning the forces acting underneath the stance foot. In this study, we deconstructed the mechanical work production during barefoot walking in a segment-by-segment manner (hallux, forefoot, hindfoot, and shank)...
November 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29121509/modifications-in-lower-leg-muscle-activation-when-walking-barefoot-or-in-minimalist-shoes-across-different-age-groups
#16
Simon Franklin, François-Xavier Li, Michael J Grey
Ageing is associated with a decline in muscle strength and impaired sensory mechanisms which contribute to an increased risk of falls. Walking barefooted has been suggested to promote increased muscle strength and improved proprioceptive sensibility through better activation of foot and ankle musculature. Minimalist footwear has been marketed as a method of reaping the suggested benefits of barefoot walking whilst still providing a protective surface. The aim of this study was to investigate if walking barefoot or in minimalist footwear provokes increased muscle activation compared to walking in conventional footwear...
October 28, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29103274/status-and-risk-factors-of-strongyloides-stercoralis-infection-in-rural-communities-of-xayaburi-province-lao-pdr
#17
Phasouk Senephansiri, Porntip Laummaunwai, Sakorn Laymanivong, Thidarut Boonmar
The present study was performed to reveal the current status and risk factors of Strongyloides stercoralis infections in the villages of Kenethao district, Xayaburi Province, Lao PDR. Fecal specimens were collected and examined for S. stercoralis using Koga-agar plate culture technique. Among 516 individuals, the prevalence of S. stercoralis and hookworm infection was 44.2% and 17.1%, respectively. Co-infection was detected in 13.2% of the cases. The prevalence did not significantly differ between males and females (P=0...
October 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29093068/efficacy-and-safety-of-abobotulinumtoxina-in-spastic-lower-limb-randomized-trial-and-extension
#18
Jean-Michel Gracies, Alberto Esquenazi, Allison Brashear, Marta Banach, Serdar Kocer, Robert Jech, Svetlana Khatkova, Ján Benetin, Michele Vecchio, Peter McAllister, Jan Ilkowski, Stanislaw Ochudlo, France Catus, Anne Sophie Grandoulier, Claire Vilain, Philippe Picaut
OBJECTIVE: To demonstrate single abobotulinumtoxinA injection efficacy in lower limb vs placebo for adults with chronic hemiparesis and assess long-term safety and efficacy of repeated injections. METHODS: In a multicenter, double-blind, randomized, placebo-controlled, single-cycle study followed by a 1-year open-label, multiple-cycle extension, adults ≥6 months after stroke/brain injury received one lower limb injection (abobotulinumtoxinA 1,000 U, abobotulinumtoxinA 1,500 U, placebo) followed by ≤4 open-label cycles (1,000, 1,500 U) at ≥12-week intervals...
November 1, 2017: Neurology
https://www.readbyqxmd.com/read/29083960/slip-safety-risk-analysis-of-surface-properties-using-the-coefficients-of-friction-of-rocks
#19
Gencay Sarıışık, Gültekin Çoşkun, Ali Sarıışık
This study was conducted to determine the most appropriate surface processing techniques (SPT), environmental conditions (EC), and surface roughness (SR) to minimize the risk of slipping while pedestrians walk on the floor covering of rocks in barefoot and with shoes. Coefficients of friction (COF) and values of SR were found by using five different types of rocks, four SPT and two (ramp and pendulum) tests. Results indicate that the parameters that affect the COF values of rocks include SR, EC, and SPT. Simple linear regression was performed to examine the relationship between the values of the COF and the SR...
October 30, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/29065630/influence-of-gait-speeds-on-contact-forces-of-lower-limbs
#20
Xin Wang, Yue Ma, Bo Yi Hou, Wing-Kai Lam
While walking with fast speed aims to promote health and fitness of individuals, the potential risk on lower limb joint loading across walking speed is still unknown. In order to determine the joint contact force loading associated with different walking speeds, fifteen young male and fifteen female participants performed barefoot walking across different speeds (regular = 1.1 m/s, medium = 1.4 m/s, and fast = 1.7 m/s). The synchronized motion and ground reaction force (GRF) data were captured by Codamotion capture system and AMTI force platform...
2017: Journal of Healthcare Engineering
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