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Injury of high strain rate

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https://www.readbyqxmd.com/read/28071687/bacterial-load-of-conditioned-pressure-ulcers-is-not-a-predictor-for-early-flap-failure-in-spinal-cord-injury
#1
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...
January 10, 2017: Spinal Cord
https://www.readbyqxmd.com/read/28043957/computational-modelling-of-traumatic-brain-injury-predicts-the-location-of-chronic-traumatic-encephalopathy-pathology
#2
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...
January 2, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28008292/incidence-and-prevalence-of-elite-male-cricket-injuries-using-updated-consensus-definitions
#3
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
#4
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
#5
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...
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
#6
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
#7
Amit Druayn, 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...
November 10, 2016: 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
#8
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
#9
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
#10
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
https://www.readbyqxmd.com/read/27737287/thigh-injuries-in-american-football
#11
Joseph D Lamplot, Matthew J Matava
Quadriceps and hamstring injuries occur frequently in football and are generally treated conservatively. While return to competition following hamstring strains is relatively quick, a high rate of injury recurrence highlights the importance of targeted rehabilitation and conditioning. This review describes the clinical manifestations of thigh-related soft-tissue injuries seen in football players. Two of these-muscle strains and contusions-are relatively common, while a third condition-the Morel-Lavallée lesion-is a rare, yet relevant injury...
September 2016: American Journal of Orthopedics
https://www.readbyqxmd.com/read/27720260/dissonant-health-transition-in-the-states-of-mexico-1990-2013-a-systematic-analysis-for-the-global-burden-of-disease-study-2013
#12
Héctor Gómez-Dantés, Nancy Fullman, Héctor Lamadrid-Figueroa, Lucero Cahuana-Hurtado, Blair Darney, Leticia Avila-Burgos, Ricardo Correa-Rotter, Juan A Rivera, Simon Barquera, Eduardo González-Pier, Tania Aburto-Soto, Elga Filipa Amorin de Castro, Tonatiuh Barrientos-Gutiérrez, Ana C Basto-Abreu, Carolina Batis, Guilherme Borges, Ismael Campos-Nonato, Julio C Campuzano-Rincón, Alejandra de Jesús Cantoral-Preciado, Alejandra G Contreras-Manzano, Lucia Cuevas-Nasu, Vanessa V de la Cruz-Gongora, Jose L Diaz-Ortega, María de Lourdes García-García, Armando Garcia-Guerra, Teresita González de Cossío, Luz D González-Castell, Ileana Heredia-Pi, Marta C Hijar-Medina, Alejandra Jauregui, Aida Jimenez-Corona, Nancy Lopez-Olmedo, Carlos Magis-Rodríguez, Catalina Medina-Garcia, Maria E Medina-Mora, Fabiola Mejia-Rodriguez, Julio C Montañez, Pablo Montero, Alejandra Montoya, Grea L Moreno-Banda, Andrea Pedroza-Tobías, Rogelio Pérez-Padilla, Amado D Quezada, Vesta L Richardson-López-Collada, Horacio Riojas-Rodríguez, Maria J Ríos Blancas, Christian Razo-Garcia, Martha P Romero Mendoza, Tania G Sánchez-Pimienta, Luz M Sánchez-Romero, Astrid Schilmann, Edson Servan-Mori, Teresa Shamah-Levy, Martha M Téllez-Rojo, José L Texcalac-Sangrador, Haidong Wang, Theo Vos, Mohammad H Forouzanfar, Mohsen Naghavi, Alan D Lopez, Christopher J L Murray, Rafael Lozano
BACKGROUND: Child and maternal health outcomes have notably improved in Mexico since 1990, whereas rising adult mortality rates defy traditional epidemiological transition models in which decreased death rates occur across all ages. These trends suggest Mexico is experiencing a more complex, dissonant health transition than historically observed. Enduring inequalities between states further emphasise the need for more detailed health assessments over time. The Global Burden of Diseases, Injuries, and Risk Factors Study 2013 (GBD 2013) provides the comprehensive, comparable framework through which such national and subnational analyses can occur...
October 5, 2016: Lancet
https://www.readbyqxmd.com/read/27681217/occupational-injuries-and-diseases-among-commercial-fishers-in-finland-1996-2015
#13
Kim O Kaustell, Tiina E A Mattila, Risto H Rautiainen
BACKGROUND: Commercial fishing is recognised as one of the most hazardous professions worldwide. In Finland, commercial fishing has some special characteristics, including fishing on ice during frozen waters, and pluriactivity of the fisher family to gain additional income. The goal of this study was to describe injury characteristics among commercial fishers in Finland during the years 1996-2015. With this information, we wish to promote creation of effective safety campaigns and interventions...
2016: International Maritime Health
https://www.readbyqxmd.com/read/27671211/stretch-injury-of-human-induced-pluripotent-stem-cell-derived-neurons-in-a-96-well-format
#14
Sydney A Sherman, Jack K Phillips, J Tighe Costa, Frances S Cho, Sevan R Oungoulian, John D Finan
Traumatic brain injury (TBI) is a major cause of mortality and morbidity with limited therapeutic options. Traumatic axonal injury (TAI) is an important component of TBI pathology. It is difficult to reproduce TAI in animal models of closed head injury, but in vitro stretch injury models reproduce clinical TAI pathology. Existing in vitro models employ primary rodent neurons or human cancer cell line cells in low throughput formats. This in vitro neuronal stretch injury model employs human induced pluripotent stem cell-derived neurons (hiPSCNs) in a 96 well format...
September 27, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27643676/material-properties-of-the-heel-fat-pad-across-strain-rates
#15
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)...
January 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/27632842/rehabilitation-after-hamstring-strain-injury-emphasizing-eccentric-strengthening-at-long-muscle-lengths-results-of-long-term-follow-up
#16
Timothy F Tyler, Brandon M Schmitt, Stephen J Nicholas, Malachy McHugh
CONTEXT: Hamstring strain injuries have a high recurrence rate. OBJECTIVE: To determine if a protocol emphasizing eccentric strength training with the hamstrings in a lengthened position resulted in a low recurrence rate. DESIGN: Longitudinal cohort study Setting: Sports medicine physical therapy clinic. PARTICIPANTS: 50 athletes with hamstring strain injury (age 36±16 yo; 30 men, 20 women; 3 G1, 43 G2, 4 G3; 25 recurrent injuries) followed a 3-phase rehabilitation protocol emphasizing eccentric strengthening with the hamstrings in a lengthened position...
August 24, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27511467/extra-articular-tenodesis-combined-with-an-anterior-cruciate-ligament-reconstruction-in-acute-anterior-cruciate-ligament-tear-in-elite-female-football-players
#17
Matteo Guzzini, Daniele Mazza, Mattia Fabbri, Riccardo Lanzetti, Andrea Redler, Carlo Iorio, Edoardo Monaco, Andrea Ferretti
PURPOSE: The growing popularity of elite soccer among female participants has led to increased incidents of anterior cruciate ligament (ACL) ruptures. Many authors underline a positive glide after ACL reconstruction (ACLR), especially in women. In fact, an isolated intra-articular ACLR may be inadequate to control rotational instability after a combined injury of the ACL and the peripheral structures of the knee. Extra-articular procedures are sometimes used in primary cases displaying excessive antero-lateral rotatory instability...
October 2016: International Orthopaedics
https://www.readbyqxmd.com/read/27497499/bandwidth-and-sample-rate-requirements-for-wearable-head-impact-sensors
#18
Lyndia C Wu, Kaveh Laksari, Calvin Kuo, Jason F Luck, Svein Kleiven, Cameron R 'Dale' Bass, David B Camarillo
Wearable inertial sensors measure human head impact kinematics important to the on-going development and validation of head injury criteria. However, sensor specifications have not been scientifically justified in the context of the anticipated field impact dynamics. The objective of our study is to determine the minimum bandwidth and sample rate required to capture the impact frequency response relevant to injury. We used high-bandwidth head impact data as ground-truth measurements, and investigated the attenuation of various injury criteria at lower bandwidths...
September 6, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27484361/multivariate-analysis-of-ultrasound-recorded-dorsal-strain-sequences-investigation-of-dynamic-neck-extensions-in-women-with-chronic-whiplash-associated-disorders
#19
Anneli Peolsson, Gunnel Peterson, Johan Trygg, David Nilsson
Whiplash Associated Disorders (WAD) refers to the multifaceted and chronic burden that is common after a whiplash injury. Tools to assist in the diagnosis of WAD and an increased understanding of neck muscle behaviour are needed. We examined the multilayer dorsal neck muscle behaviour in nine women with chronic WAD versus healthy controls during the entire sequence of a dynamic low-loaded neck extension exercise, which was recorded using real-time ultrasound movies with high frame rates. Principal component analysis and orthogonal partial least squares were used to analyse mechanical muscle strain (deformation in elongation and shortening)...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27470953/-classification-and-imaging-diagnosis-of-lisfranc-joint-injuries
#20
Y Xi, D J Hu, W W Yao, M Li
OBJECTIVE: To accelerate the detection rate and accuracy of diagnosis in damage imaging of Lisfranc joint through research on the information of X-ray, CT, and MR imaging of tarsometatarsus joint (also called Lisfranc joint) damage. METHODS: A total of 153 cases of tarsometratisus damage or Lisfranc ligamentous injury patients were chosen during November 2012 to November 2015. Lisfranc injuries were classified according to the Myerson fracture displacements classification and Nunley-Vertullo low-grade injury classification...
July 5, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
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