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https://www.readbyqxmd.com/read/28641058/acute-kinematics-changes-in-marathon-runners-using-different-footwear
#1
Tania Socorro Amorim Soares, Camila Fonseca de Oliveira, Federico Pizzuto, Rui Manuel Garganta, João Paulo Vila-Boas, Mario Casimiro da Anunciação Paiva
The effects of running with or without shoes on injury prevention have been extensively studied, and several investigations have assessed biomechanical differences between them. However, findings are not consensual and further insights on biomechanical load associated with differently shod or barefoot conditions may be needed. This study aimed to observe if habitually shod marathon runners show acute alterations when running barefoot or with minimalist shoes, and to determine whether the running kinematical adaptations of wearing minimalist shoes were similar to barefoot running...
June 22, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28640896/beneficial-effects-of-a-gait-used-while-wearing-a-kimono-to-decrease-the-knee-adduction-moment-in-healthy-adults
#2
Susumu Ota, Yukari Ogawa, Hiroki Ota, Tomoya Fujiwara, Tadashi Sugiyama, Akira Ochi
The knee adduction moment (KAM) relates to medial knee osteoarthritis (OA). Several gait modifications to reduce the KAM for the prevention of knee OA have been studied. Most of the modifications, however, involve voluntary changes in leg alignment. Here we investigated the biomechanical effects for reducing the KAM of a walking style with a small trunk rotation and arm swing gait, which is a natural walking style used while wearing a kimono (Nanba walk) that shifts the ground reaction force toward the stance leg (reduced lever arm)...
2017: PloS One
https://www.readbyqxmd.com/read/28640687/dust-exposure-and-coccidioidomycosis-prevention-among-solar-power-farm-construction-workers-in-california
#3
Gail L Sondermeyer Cooksey, Jason A Wilken, Jennifer McNary, Debra Gilliss, Dennis Shusterman, Barbara L Materna, Duc J Vugia
OBJECTIVES: To investigate if work activities, dust exposure, and protection measures were associated with a 2011 to 2014 coccidioidomycosis outbreak among workers constructing 2 solar farms in California. METHODS: In 2013, we mailed self-administered questionnaires to employees who were onsite at the solar farms where the outbreak occurred to identify cases of clinical coccidioidomycosis and compare with asymptomatic workers by using multivariate logistic regression...
June 22, 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/28637294/over-time-impacts-of-pictorial-health-warning-labels-and-their-differences-across-smoker-subgroups-results-from-adult-smokers-in-canada-and-australia
#4
Kamala Swayampakala, James F Thrasher, Hua-Hie Yong, Gera E Nagelhout, Lin Li, Ron Borland, David Hammond, Richard J O'Connor, James W Hardin
Introduction: This study examines patterns of change in different smoker subgroups' responses to new pictorial health warning labels (HWLs) over the initial, two year post-implementation period in Canada, where HWLs include package inserts with cessation messages, and Australia, where "plain" packaging (i.e., prohibition of brand imagery) was also implemented. Methods: Data were collected from online consumer panels in Canada (nsmokers=3,153; nobservations=5,826) and Australia (nsmokers=2,699; nobservations=5,818) from September 2012 to September 2014, with approximately 1,000 adult smokers surveyed in each country every four months, using replenishment to maintain sample size...
June 16, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28637223/millions-of-years-behind-slow-adaptation-of-ruminants-to-grasslands
#5
Olja Toljagic, Kjetil L Voje, Michael Matschiner, Lee Hsiang Liow, Thomas F Hansen
The Late-Cretaceous appearance of grasses, followed by the Cenozoic advancement of grasslands as dominant biomes, has contributed to the evolution of a range of specialized herbivores adapted to new diets, as well as to increasingly open and arid habitats. Many mammals including ruminants, the most diversified ungulate suborder, evolved high-crowned (hypsodont) teeth as an adaptation to tooth-wearing diets and habitats. The impact of different causes of tooth wear is still a matter of debate, and the temporal pattern of hypsodonty evolution in relation to the evolution of grasslands remains unclear...
June 20, 2017: Systematic Biology
https://www.readbyqxmd.com/read/28636299/-sprain-of-the-thumb-metacarpal-phalangeal-with-lesion-of-the-ulnar-collateral-ligament
#6
Thibault Poujade, Grégoire Chick
The sprain of the thumb metacarpal-phalangeal joint must be treated in an adapted way in order to avoid chronic laxity. The comparative and bilateral clinical exam is the main element that will allow to detect laxity. In the case of non laxity, a conservative treatment with a splint makes sense. In the case of laxity with Stener effect, a surgical procedure is recommended in order to reintegrate the collateral ligament. In the case of laxity without Stener effect, the choice of treatment is contentious. A US or MRI would be useful if the Stener effect could be underlying...
May 17, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28636252/influence-of-analyzed-lubricant-volumes-on-the-amount-and-characteristics-of-generated-wear-particles-from-three-different-types-of-polyethylene-liner-materials
#7
Jana Markhoff, Carmen Zietz, Christian Fabry, Gerhard Fulda, Rainer Bader
The articulating components of artificial joints consist mainly of metals, ceramics, or polymers. Resulting abrasive wear particles can promote osteolysis and aseptic loosening of the endo-prosthetic implants. Ultra-high-molecular-weight-polyethylene is the material used most for bearing couples in total hip replacement. In the present study, three types of polyethylene (PE) liners varying in material composition, i.e., (1) conventional PE (C-PE), (2) sequentially cross-linked PE (SX-PE), (3) cross-linked PE blended with vitamin E (EX-PE) articulating with two types of femoral heads were used...
June 21, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28635471/off-camera
#8
Ed Freshwater
Wearing body cameras at work is a terrible idea, especially in settings where establishing a trusting therapeutic relationship is vital (readers' panel, 14 June).
June 21, 2017: Nursing Standard
https://www.readbyqxmd.com/read/28634926/aging-effect-on-the-instrumented-timed-up-and-go-test-variables-in-nursing-home-women-aged-80-93%C3%A2-years
#9
Ryszard Zarzeczny, Agnieszka Nawrat-Szołtysik, Anna Polak, Jakub Maliszewski, Adam Kiełtyka, Beata Matyja, Magdalena Dudek, Joanna Zborowska, Adam Wajdman
Although the total "Timed-Up-and Go" test (TUG) performance time can characterize an age-related decline of general mobility, this result alone doesn't give any detailed information about the test subtasks. The primary objective of the study was to identify in nursing home women a variable extracted from instrumented TUG (iTUG) that is the best predictor of age. The secondary objective was to assess whether this variable is associated with the results of the isometric knee extension peak torque (IKEPT); lower limb strength measured by the 30-s chair stand test (30sCST), and walking capacity measured by the 6-min walk test (6MWT)...
June 20, 2017: Biogerontology
https://www.readbyqxmd.com/read/28633831/the-effects-of-organoclay-on-the-morphology-and-mechanical-properties-of-pai-clay-nanocomposites-coatings-prepared-by-the-ultrasonication-assisted-process
#10
Hamed Naderi-Samani, Reza Shoja Razavi, Mohammad Reza Loghman-Estarki, Mazaher Ramazani
In this research, solvent based polyamide - imide (PAI)/clay nanocomposites were prepared successfully using the solution dispersion technique. With the assistance of the ultrasonic wave, the effect of the ultrasonic wave time on the microstructure of 3wt% PAI/C20A nanocomposite (NC) was investigated. Then, the best ultrasonic parameters were selected and the effects of the concentration of Cloisite 20A (C20A) (1, 3 and 5wt% C20A) on the microstructure and mechanical properties (adhesion, hardness, flexibility, wear and impact) of NCs were investigated...
September 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28633656/children-s-physical-activity-during-a-segmented-school-week-results-from-a-quasi-experimental-education-outside-the-classroom-intervention
#11
Mikkel Bo Schneller, Jasper Schipperijn, Glen Nielsen, Peter Bentsen
BACKGROUND: Movement integration (MI) into traditional classroom teaching is a promising opportunity for children to increase physical activity (PA). Education outside the classroom (EOtC) can be regarded as MI, and has increased children's PA in case studies. The aim of this study is to investigate the effects of EOtC on children's PA by segmenting weekly activity-related behavior into a range of day types and domains. METHODS: In a quasi-experimental design, 33 classes were recruited and participants' PA was objectively measured using accelerometers taped to the lower back...
June 20, 2017: International Journal of Behavioral Nutrition and Physical Activity
https://www.readbyqxmd.com/read/28632986/atom-probe-tomography-unveils-formation-mechanisms-of-wear-protective-tribofilms-by-zddp-ionic-liquid-and-their-combination
#12
Wei Guo, Yan Zhou, Xiahan Sang, Donovan N Leonard, Jun Qu, Jonathan D Poplawsky
The development of advanced lubricant additives has been a critical component for in paving the way for increasing energy efficiency and durability for numerous industry applications. However, the formation mechanisms of additive-induced protective tribofilms are not yet fully understood due to the complex chemomechanical interactions at the contact interface and the limited spatial resolution of many characterizing techniques currently used. Here, the tribofilms on a grey cast iron surface formed by three antiwear additives are systematically studied; a phosphonium-phosphate ionic liquid (IL), a zinc dialkyldithiophosphate (ZDDP), and an IL+ZDDP combination...
June 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28632661/efficacy-and-limitations-of-conservative-treatment-for-painful-patella-partita-positioning-of-an-ultrasound-accelerated-fracture-healing-apparatus
#13
Natsuki Sugimura, Daisuke Hirose, Koji Aso, Masashi Izumi, Yusuke Okanoue, Kazuo Kitaoka, Masahiko Ikeuchi
OBJECTIVE: Generally, painful patella partita is conservatively treated, but the usefulness of a low-intensity pulsed ultrasound (LIPUS) healing apparatus is unclear. The objective of this study was to investigate the usefulness of LIPUS for conservative treatment of painful patella partita. SUBJECTS AND METHODS: The subjects included 17 patients diagnosed with painful patella partita. The subjects were divided into 2 groups: those without pain at 6 months (responsive group) and those with pain that persisted for 6 months or longer (non-responsive group)...
July 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28631104/is-there-an-association-between-surgeon-hat-type-and-30-day-wound-events-following-ventral-hernia-repair
#14
REVIEW
I N Haskins, A S Prabhu, D M Krpata, A J Perez, L Tastaldi, C Tu, S Rosenblatt, B K Poulose, M J Rosen
INTRODUCTION: While several patient and operative variables have been shown to be associated with an increased risk of postoperative wound events, the association between surgical hat type worn by surgeons and postoperative wound events remains controversial. The purpose of this study is to investigate the association between type of surgical hat worn by surgeons and the incidence of postoperative wound events following ventral hernia repair using the Americas Hernia Society Quality Collaborative database...
June 19, 2017: Hernia: the Journal of Hernias and Abdominal Wall Surgery
https://www.readbyqxmd.com/read/28630957/optical-profilometry-versus-intraoral-handheld-scanning
#15
Oliver Hartkamp, Florian Peters, Hannes Bothung, Ulrich Lohbauer, Sven Reich
AIM: The aim of this study was to evaluate the difference in maximum height loss values obtained from datasets based on optical profilometry and intraoral scanning. Additionally, two analysis applications were tested with respect to their correspondence. MATERIALS AND METHODS: To obtain baseline data, the occlusal surface of a metal phantom tooth was scanned by optical profilometry [WLP] and an intraoral scanner [IOS]. Then, wear was simulated at two locations of the tooth, three times each ([wear1], [wear2], and [wear3]), and the surface was captured after each status of wear, applying [WLP] and [IOS]...
2017: International Journal of Computerized Dentistry
https://www.readbyqxmd.com/read/28629318/the-effect-of-a-daily-application-of-a-0-05-chlorhexidine-oral-rinse-solution-on-the-incidence-of-aspiration-pneumonia-in-nursing-home-residents-a-multicenter-study
#16
Vanessa R Y Hollaar, Gert-Jan van der Putten, Claar D van der Maarel-Wierink, Ewald M Bronkhorst, Bert J M de Swart, Nico H J Creugers
BACKGROUND: Dysphagia and potential respiratory pathogens in the oral biofilm are risk factors for aspiration pneumonia in nursing home residents. The aim of the study was to examine if the daily application of 0.05% chlorhexidine oral rinse solution is effective in reducing the incidence of aspiration pneumonia in nursing home residents with dysphagia. Associations between background variables (age, gender, dysphagia severity, care dependency, medication use, number of medical diagnoses, teeth and dental implants, and wearing removable dentures) and the incidence of aspiration pneumonia were also examined...
June 19, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28629068/a-novel-alginate-encapsulated-system-to-study-biological-response-to-critical-sized-wear-particles-of-uhmwpe-loaded-with-alendronate-sodium
#17
Yumei Liu, Feng Shi, Lin Bo, Wei Zhi, Jie Weng, Shuxin Qu
The aim of this study was to develop a novel alginate-encapsulated system (Alg beads) to investigate the cell response to critical-sized wear particles of ultra-high molecular weight polyethylene loaded with alendronate sodium (UHMWPE-ALN), one of the most effective drugs to treat bone resorption in clinic. The extrusion method was used to prepare Alg beads encapsulating rat calvarial osteoblasts (RCOs) and critical-sized UHMWPE-ALN wear particles with spherical morphology and uniform size. The morphology, permeability and stability of Alg beads were characterized...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28629033/a-new-finding-on-the-in-vivo-crevice-corrosion-damage-in-a-cocrmo-hip-implant
#18
Reza H Oskouei, Mohammad Reza Barati, Hamidreza Farhoudi, Mark Taylor, Lucian Bogdan Solomon
A detailed investigation was performed to characterize the fretting wear and corrosion damage to the neck component of a CoCrMo stem from a metal-on-polyethylene implant retrieved after 99months. The stem was a low-carbon (0.07wt%) wrought Co-28Cr-6Mo alloy with no secondary carbide phases in the matrix (γ-phase). The original design of the neck surface contained an intentionally fabricated knurled profile with a valley-to-peak range of approximately 11μm. Roughness measurements indicated that the tip of the knurled profile was significantly damaged, especially in the distal medial region of the neck, with up to a 22% reduction in the mean peak-to-valley height (Ra) compared to the original profile...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28628350/custom-cast-ball-attachments-used-on-outdated-implants-to-restore-a-maxillary-implant-supported-overdenture
#19
Andressa Rosa Perin Leite, Danny Omar Mendoza Marin, Gabriela Giro, Ana Carolina Pero, Ligia Antunes Pereira Pinelli, JoséMauriciodos Santos Reis
The lack of compatible prosthetic components can be a complication during oral rehabilitations using outdated implants. The aim of the present clinical report was to describe an alternative technique for the fabrication of a maxillary implant-supported overdenture in a patient with 20-year-old dental implants using castable spherical patterns and ball-attachments. The patient had been wearing a relined bar/clip overdenture in the mandible on four external-hexagon dental implants and a relined complete denture in the maxilla on four internal-hexagon implants due to abutment screw fracture inside of the implants, losing the attachment system...
June 19, 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/28628074/when-the-nursing-student-also-wears-cleats-successful-nursing-student-athletes
#20
Betsy M McDowell
Being a nursing student athlete carries both rewards and challenges. There is a dearth of nursing literature addressing the subset of nursing student athletes. This article offers the characteristics of successful nursing student athletes; the challenges they encounter; the advantages of having student athletes in the nursing student body; and the student-centered, program-centered, and institution-centered strategies that need to be in place for their success.
July 2017: Nursing Education Perspectives
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