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Injury of high strain rate

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https://www.readbyqxmd.com/read/28587794/biomechanical-analysis-of-ankle-ligamentous-sprain-injury-cases-from-televised-basketball-games-understanding-when-how-and-why-ligament-failure-occurs
#1
Emmanouil Panagiotakis, Kam-Ming Mok, Daniel Tik-Pui Fong, Anthony M J Bull
OBJECTIVES: Ankle sprains due to landing on an opponent's foot are common in basketball. There is no analysis to date that provides a quantification of this injury mechanism. The aim of this study was to quantify the kinematics of this specific injury mechanism and relate this to lateral ankle ligament biomechanics. DESIGN: Case series. METHODS: The model-based image-matching technique was used to quantify calcaneo-fibular-talar kinematics during four ankle inversion sprain injury incidents in televised NBA basketball games...
May 25, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28532074/highly-effective-cu-zn-carbon-micro-nanofiber-polymer-nanocomposite-based-wound-dressing-biomaterial-against-the-p-aeruginosa-multi-and-extensively-drug-resistant-strains
#2
Mohammad Ashfaq, Nishith Verma, Suphiya Khan
Pseudomonas aeruginosa (P. aeruginosa) is the most prevalent bacteria in the infections caused by burn, surgery, and traumatic injuries. Emergence of the P. aeruginosa bacterial resistance against various clinical drugs for wound treatment is the major concern nowadays. The present study describes the synthesis of the polyvinyl alcohol (PVA) and cellulose acetate phthalate (CAP) polymeric composite film (~0.2mm thickness) reinforced with the Cu/Zn bimetal-dispersed activated carbon micro/nanofiber (ACF/CNF), as a wound dressing material...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28525774/development-and-validation-of-a-physical-model-to-investigate-the-biomechanics-of-infant-head-impact
#3
M Jones, D Darwall, G Khalid, R Prabhu, A Kemp, Owen J Arthurs, P Theobald
Head injury in childhood is the single most common cause of death or permanent disability from injury. However, despite its frequency and significance, there is little understanding of the response of a child's head to injurious loading. This is a significant limitation when making early diagnoses, informing clinical and/or forensic management or injury prevention strategies. With respect to impact vulnerability, current understanding is predominantly based on a few post-mortem-human-surrogate (PMHS) experiments...
July 2017: Forensic Science International
https://www.readbyqxmd.com/read/28457380/overexpression-of-hypoxia-inducible-factor-1%C3%AE-in-primary-graft-dysfunction-developing-in-an-orthotopic-lung-transplantation-rat%C3%A2-model
#4
F Lunardi, D Zampieri, M Vadori, D Bernardini, S E Vuljan, N Nannini, F Rea, E Cozzi, F Calabrese
BACKGROUND: Primary graft dysfunction (PGD) is the major cause of early morbidity and mortality after transplantation. A high rate of PGD is a frequent complication in orthotopic lung transplantation (OLT) models, which are currently used to investigate acute and chronic rejection pathways. Hypoxia-inducible factor (HIF)-1α is a heterodimeric αβ transcription factor that mediates tissue response to hypoxia. In other solid organ transplantations, a significant correlation between HIF-1α expression and PGD was detected...
May 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28414268/shifting-the-current-clinical-perspective-isolated-eccentric-exercise-as-an-effective-intervention-to-promote-the-recovery-of-muscle-after-injury
#5
Lindsey K Lepley, Timothy A Butterfield
Eccentric exercise is able to mechanically engage muscle, initiating strain-sensing molecules that promote muscle recovery by inducing beneficial adaptations in neural activity and muscle morphology, 2 critical components of muscle function that are negatively altered after injury. However, due to misinterpreted mathematic modeling and in situ and in vitro stretch protocols, a dogma that exposing muscle to eccentric exercise is associated with injury has been perpetuated in the literature. In response, clinicians have been biased toward using concentric exercise postinjury to improve the recovery of muscle function...
April 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28411480/hemorrhagic-fever-with-renal-syndrome-in-albania-focus-on-predictors-of-acute-kidney-injury-in-hfrs
#6
Elvana Rista, Arben Pilaca, Ilir Akshija, Ariol Rama, Endri Harja, Edmond Puca, Silvia Bino, Vilma Cadri, Majlinda Kota, Thereska Nestor, Harxhi Arjan
BACKGROUND: Hemorrhagic fever with renal syndrome (HFRS) is a rodent borne zoonosis, caused by the members of the family Bunyaviridae, genus Hantavirus. The main clinical features of the infection by this virus family are fever, thrombocytopenia and acute kidney injury. OBJECTIVE: The aim of our study was to identify, for the first time, characteristic features of HFRS in the Albanian population. STUDY DESIGN: The study comprised 33 consecutive patients admitted with suspected HFRS from April 2011-April 2016 at one center...
March 31, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28358221/descriptive-epidemiology-of-non-time-loss-injuries-in-collegiate-and-high-school-student-athletes
#7
Zachary Y Kerr, Robert C Lynall, Karen G Roos, Sara L Dalton, Aristarque Djoko, Thomas P Dompier
CONTEXT:   Research on non-time-loss (NTL) injuries, which result in less than 24 hours of restriction from participation, is limited. OBJECTIVE:   To describe the epidemiology of NTL injuries among collegiate and high school student-athletes. DESIGN:   Descriptive epidemiology study. SETTING:   Aggregate injury and exposure data collected from a convenience sample of National College Athletic Association varsity teams and 147 high schools in 26 states...
May 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28319168/targeting-chronic-cardiac-remodeling-with-cardiac-progenitor-cells-in-a-murine-model-of-ischemia-reperfusion-injury
#8
Janine C Deddens, Dries A Feyen, Peter-Paul Zwetsloot, Maike A Brans, Sailay Siddiqi, Linda W van Laake, Pieter A Doevendans, Joost P Sluijter
BACKGROUND: Translational failure for cardiovascular disease is a substantial problem involving both high research costs and an ongoing lack of novel treatment modalities. Despite the progress already made, cell therapy for chronic heart failure in the clinical setting is still hampered by poor translation. We used a murine model of chronic ischemia/reperfusion injury to examine the effect of minimally invasive application of cardiac progenitor cells (CPC) in cardiac remodeling and to improve clinical translation...
2017: PloS One
https://www.readbyqxmd.com/read/28144407/knee-injuries-in-wrestlers-a-prospective-study-from-the-indian-subcontinent
#9
Shalini Agarwal, Ekta Mann
BACKGROUND: Wrestling is a very popular sport the world over and its popularity is rapidly increasing in India. However, due to its arduous nature it is associated with a high incidence of injuries. Out of all the injuries, those to the knee are one of the commonest injuries reported. OBJECTIVES: Our aim was to study the pattern of these injuries in the Indian wrestlers. METHODS: A prospective study was conducted involving 196 wrestlers who were followed up over a period of 2 years...
December 2016: Asian Journal of Sports Medicine
https://www.readbyqxmd.com/read/28093502/heat-strain-volume-depletion-and-kidney-function-in-california-agricultural-workers
#10
COMPARATIVE STUDY
Sally Moyce, Diane Mitchell, Tracey Armitage, Daniel Tancredi, Jill Joseph, Marc Schenker
BACKGROUND: Agricultural work can expose workers to increased risk of heat strain and volume depletion due to repeated exposures to high ambient temperatures, arduous physical exertion and limited rehydration. These risk factors may result in acute kidney injury (AKI). METHODS: We estimated AKI cumulative incidence in a convenience sample of 283 agricultural workers based on elevations of serum creatinine between preshift and postshift blood samples. Heat strain was assessed based on changes in core body temperature and heart rate...
June 2017: Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28071687/bacterial-load-of-conditioned-pressure-ulcers-is-not-a-predictor-for-early-flap-failure-in-spinal-cord-injury
#11
T Kamradt, S Klein, S Zimmermann, J Schröder-Braunstein, C H Fürstenberg, C Hensel, N Weidner, A Hug
OBJECTIVES: Pressure ulcers impose a major lifetime medical problem to patients with high-grade spinal cord injury (SCI). For patients with stages 3-4 pressure ulcers, plastic surgery is often the only remaining treatment option. Despite considerable flap failure rates of around 30%, only sparse knowledge exists on predictors for flap failure. Hence, identification of predictors for flap failures is needed. METHODS: We prospectively enrolled 38 SCI patients with stages 3-4 pressure ulcers scheduled for plastic surgery...
June 2017: Spinal Cord
https://www.readbyqxmd.com/read/28043957/computational-modelling-of-traumatic-brain-injury-predicts-the-location-of-chronic-traumatic-encephalopathy-pathology
#12
Mazdak Ghajari, Peter J Hellyer, David J Sharp
Traumatic brain injury can lead to the neurodegenerative disease chronic traumatic encephalopathy. This condition has a clear neuropathological definition but the relationship between the initial head impact and the pattern of progressive brain pathology is poorly understood. We test the hypothesis that mechanical strain and strain rate are greatest in sulci, where neuropathology is prominently seen in chronic traumatic encephalopathy, and whether human neuroimaging observations converge with computational predictions...
February 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28008292/incidence-and-prevalence-of-elite-male-cricket-injuries-using-updated-consensus-definitions
#13
John W Orchard, Alex Kountouris, Kevin Sims
BACKGROUND: T20 (Twenty20 or 20 over) cricket has emerged in the last decade as the most popular form of cricket (in terms of spectator attendances). International consensus cricket definitions, first published in 2005, were updated in 2016 to better reflect the rise to prominence of T20 cricket. METHODS: Injury incidence and prevalence rates were calculated using the new international methods and units for elite senior male Australian cricketers over the past decade (season 2006-2007 to season 2015-2016 inclusive)...
2016: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/27930890/within-session-responses-to-high-intensity-interval-training-in-spinal-cord-injury
#14
Todd Anthony Astorino, Jacob S Thum
AIM: Completion of high-intensity interval training (HIIT) increases maximal oxygen uptake and health status, yet its feasibility in persons with spinal cord injury is unknown. PURPOSE: To compare changes in cardiorespiratory and metabolic variables between two interval training regimes and moderate intensity exercise. METHOD: Nine adults with spinal cord injury (duration = 6.8 ± 6.2 year) initially underwent determination of peak oxygen uptake...
December 8, 2016: Disability and Rehabilitation
https://www.readbyqxmd.com/read/27923979/functional-respiratory-imaging-regional-strain-and-expiratory-time-constants-at-three-levels-of-positive-end-expiratory-pressure-in-an-ex%C3%A2-vivo-pig-model
#15
William R Henderson, Yannick Molgat-Seon, Wim Vos, Rachel Lipson, Francisca Ferreira, Miranda Kirby, Cedric Van Holsbeke, Paolo B Dominelli, Donald E G Griesdale, Mypinder Sekhon, Harvey O Coxson, John Mayo, A William Sheel
Heterogeneity in regional end expiratory lung volume (EELV) may lead to variations in regional strain (ε). High ε levels have been associated with ventilator-associated lung injury (VALI). While both whole lung and regional EELV may be affected by changes in positive end-expiratory pressure (PEEP), regional variations are not revealed by conventional respiratory system measurements. Differential rates of deflation of adjacent lung units due to regional variation in expiratory time constants (τE) may create localized regions of ε that are significantly greater than implied by whole lung measures...
December 2016: Physiological Reports
https://www.readbyqxmd.com/read/27900184/symptoms-and-risk-factors-of-depression-during-and-after-the-football-career-of-elite-female-players
#16
Birgit Prinz, Jiří Dvořák, Astrid Junge
BACKGROUND: The mental health of elite athletes has received increasing attention in recent years, but no study has evaluated the career-time prevalence of depression, and very few have analysed risk factors of mental health problems during or after the career. METHODS: 157 (response rate 64.1%) female players who played in the German First League answered an anonymous online survey on details of their football career, stressful and helpful conditions, depression and need of psychotherapeutic support during and after the football career...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27831921/the-effects-of-smoking-and-nicotine-ingestion-on-exercise-heat-tolerance
#17
Amit Druyan, Danit Atias, Itay Ketko, Yoav Cohen-Sivan, Yuval Heled
BACKGROUND: Smoking has a thermogenic effect and is associated with low physical performance. Nevertheless, a direct, quantitative effect of acute smoking on exercise heat tolerance has not been reported. METHODS: Sixteen healthy young male volunteers, eight cigarette smokers, and eight non-smokers participated in the study. All subjects performed a maximal oxygen consumption test (VO2max) and a standardized heat tolerance test (HTT) after at least 12 h without smoking under the following conditions: no nicotine exposure, 10 min after nicotine exposure (2 mg nicotine lozenge), and 10 min after smoking two cigarettes (0...
March 1, 2017: Journal of Basic and Clinical Physiology and Pharmacology
https://www.readbyqxmd.com/read/27829193/modifying-the-strength-and-strain-concentration-profile-within-collagen-scaffolds-using-customizable-arrays-of-poly-lactic-acid-fibers
#18
Laura C Mozdzen, Alan Vucetic, Brendan A C Harley
The tendon-to-bone junction is a highly specialized tissue which dissipates stress concentrations between mechanically dissimilar tendon and bone. Upon injury, the local heterogeneities across this insertion are not regenerated, leading to poor functional outcomes such as formation of scar tissue at the insertion and re-failure rates exceeding 90%. Although current tissue engineering methods are moving towards the development of spatially-graded biomaterials to begin to address these injuries, significant opportunities remain to engineer the often complex local mechanical behavior of such biomaterials to enhance their bioactivity...
February 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/27808004/interval-training-elicits-higher-enjoyment-versus-moderate-exercise-in-persons-with-spinal-cord-injury
#19
Todd A Astorino, Jacob S Thum
BACKGROUND: High intensity interval training (HIIT) is a robust and time-efficient approach to improve multiple health indices including maximal oxygen uptake (VO2max). Despite the intense nature of HIIT, data in untrained adults report greater enjoyment of HIIT versus continuous exercise (CEX). However, this has yet to be investigated in persons with spinal cord injury (SCI). OBJECTIVE: To examine differences in enjoyment in response to CEX and HIIT in persons with SCI...
November 3, 2016: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/27806502/a-comparison-between-the-new-and-the-conventional-method-for-recapping-of-needles-in-a-hospital-setting
#20
Mohsen Masoodi, Haleh Chehrehgosha, Marjan Mokhtare, Amir Hossein Faghihi, Shahram Agah
INTRODUCTION: Needle stick injury is a common and serious event despite training and education and preventive strategies. The common form of the needle stick among health care workers can be occurred while recapping of needle and it is important because of the risk of transferring infectious strains. With aim of reducing the needle stick injury we compared the results of a new recapping method as high dropping cover to a needle and then try to fix it for frequency of needle stick injury and impending to injury among a sample of nurses...
July 12, 2016: Global Journal of Health Science
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