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https://www.readbyqxmd.com/read/29599866/impact-of-official-matches-on-soccer-referees-power-performance
#1
Daniel Castillo, Javier Yanci, Jesús Cámara
The evaluation of match officials' neuromuscular performance is now an important consideration and the vertical jump test is considered suitable for assessing lower limb power, partly because it is directly related to refereeing. The aim of this study, therefore, was to determine the effect of soccer matches on match officials' vertical jump performance by assessing various biomechanical variables. Eighteen field referees (FRs) and 36 assistant referees (ARs) who officiated in 18 official matches participated in this study...
March 2018: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29528560/a-stable-plasmonic-cu-cu-2-o-zno-heterojunction-for-enhanced-photocatalytic-hydrogen-generation
#2
Yongbing Lou, Yake Zhang, Lin Cheng, Jinxi Chen, Yixin Zhao
The localized surface plasmon resonance (LSPR) effect has been widely utilized in photocatalysis, but most reported LSPR materials are based on noble metals of gold or silver with high chemical stability. Plasmonic copper nanoparticles that exhibit an LSPR absorbance at 600 nm are promising for many applications, such as photocatalysis. Unfortunately, plasmonic copper nanoparticles are affected by serious surface oxidation in air. Herein, a novel lollipop-shaped Cu@Cu2 O/ZnO heterojunction nanostructure was designed, for the first time, to stabilize the plasmonic Cu core by decorating Cu@Cu2 O core-shell structures with ZnO nanorods...
May 9, 2018: ChemSusChem
https://www.readbyqxmd.com/read/29438911/biomechanical-assessment-of-dynamic-balance-specificity-of-different-balance-tests
#3
Steffen Ringhof, Thorsten Stein
Dynamic balance is vitally important for most sports and activities of daily living, so the assessment of dynamic stability has become an important issue. In consequence, a large number of balance tests have been developed. However, it is not yet known whether these tests (i) measure the same construct and (ii) can differentiate between athletes with different balance expertise. We therefore studied three common dynamic balance tests: one-leg jump landings, Posturomed perturbations and simulated forward falls...
April 2018: Human Movement Science
https://www.readbyqxmd.com/read/29119064/administration-of-tranexamic-acid-in-trauma-patients-under-stricter-inclusion-criteria-increases-the-treatment-window-for-stabilization-from-24-to-48-hours-a-retrospective-review
#4
Eric Luehr, Gary Grone, Manoj Pathak, Cindy Austin, Simon Thompson
BACKGROUND: Since 2010, the use of Tranexamic Acid (TXA) in trauma has been brought to the forefront of severe hemorrhage treatment. However, the mixed literature illustrates the need for additional proof of efficacy and determining which patients may benefit from TXA. The purpose of this retrospective study was to evaluate a more stringent TXA inclusion criterion (heart rate ≥ 120 beats per minute (BPM) with a systolic blood pressure (SBP) ≤ 90 mmHg) as compared to the standard CRASH-2 inclusion criteria...
2017: International Journal of Burns and Trauma
https://www.readbyqxmd.com/read/28935262/identification-of-the-period-of-stability-in-a-balance-test-after-stepping-up-using-a-simplified-cumulative-sum
#5
Doha Safieddine, Aly Chkeir, Cyrille Herlem, Delphine Bera, Michèle Collart, Jean-Luc Novella, Moustapha Dramé, David J Hewson, Jacques Duchêne
Falls are a major cause of death in older people. One method used to predict falls is analysis of Centre of Pressure (CoP) displacement, which provides a measure of balance quality. The Balance Quality Tester (BQT) is a device based on a commercial bathroom scale that calculates instantaneous values of vertical ground reaction force (Fz) as well as the CoP in both anteroposterior (AP) and mediolateral (ML) directions. The entire testing process needs to take no longer than 12 s to ensure subject compliance, making it vital that calculations related to balance are only calculated for the period when the subject is static...
November 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28874277/corrigendum-to-the-effect-of-the-stability-threshold-on-time-to-stabilization-and-its-reliability-following-a-single-leg-drop-jump-landing-j-biomech-49-3-2016-496-501
#6
Duncan P Fransz, Arnold Huurnink, Vosse A de Boode, Idsart Kingma, Jaap H van Dieën
No abstract text is available yet for this article.
September 2, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28716191/effect-of-immunologic-solutions-on-sows-and-gilts-on-time-to-stability-and-production-losses-in-breeding-herds-infected-with-1-7-4-prrsv
#7
D C L Linhares, C Betlach, R B Morrison
Porcine reproductive and respiratory syndrome virus (PRRSv) is an economically significant swine pathogen causing production losses in the global swine industry. Clinical impact depends on many factors including the virus itself. One method to sub-type PRRSv is using restriction fragment length polymorphism (RFLP). The RFLP pattern 1-7-4 emerged within the United States swine industry in 2014 and has become prevalent since then. This was a field study that prospectively followed 1-7-4-infected breeding herds (n=107) and compared time to stability (TTS), time to baseline production (TTBP) and total loss per 1000 sows between herds using modified-live virus vaccine (MLV) on sows and gilts (MLV-MLV), MLV on sows and MLV in addition to field virus exposure on gilts (MLV-MLV/FVE) or not deliberately exposing sows or gilts to PRRSv (Natural-Natural)...
September 1, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28714826/effects-of-peroneal-muscles-fatigue-on-dynamic-stability-following-lateral-hop-landing-time-to-stabilization-vs-dynamic-postural-stability-index
#8
Kazem Malmir, Gholam Reza Olyaei, Saeed Talebian, Ali Ashraf Jamshidi, Majid Ashraf Ganguie
CONTEXT: Dynamic stability is a necessary requirement in many sports competitions. Muscle fatigue, which can impair stability, may be occurred in many sports competitions in which lateral movements and landing repeated frequently. OBJECTIVE: To assess the effects of peroneal muscles fatigue on dynamic stability following lateral hop landing through measuring time to stabilization (TTS) and dynamic postural stability index (DPSI). DESIGN: Quasi-experimental...
July 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28682238/complementary-contributions-of-basolateral-amygdala-and-orbitofrontal-cortex-to-value-learning-under-uncertainty
#9
Alexandra Stolyarova, Alicia Izquierdo
We make choices based on the values of expected outcomes, informed by previous experience in similar settings. When the outcomes of our decisions consistently violate expectations, new learning is needed to maximize rewards. Yet not every surprising event indicates a meaningful change in the environment. Even when conditions are stable overall, outcomes of a single experience can still be unpredictable due to small fluctuations (i.e., expected uncertainty) in reward or costs. In the present work, we investigate causal contributions of the basolateral amygdala (BLA) and orbitofrontal cortex (OFC) in rats to learning under expected outcome uncertainty in a novel delay-based task that incorporates both predictable fluctuations and directional shifts in outcome values...
July 6, 2017: ELife
https://www.readbyqxmd.com/read/28643901/ferric-carboxymaltose-in-patients-with-restless-legs-syndrome-and-nonanemic-iron-deficiency-a-randomized-trial
#10
Claudia Trenkwalder, Juliane Winkelmann, Wolfgang Oertel, Garth Virgin, Bernard Roubert, Anna Mezzacasa
BACKGROUND: Compromised iron status is important in restless legs syndrome pathophysiology. We compared the efficacy and tolerability of ferric carboxymaltose (single intravenous dose) versus placebo for restless legs syndrome treatment in iron-deficient nonanemic patients. METHODS: Patients with moderate to severe restless legs syndrome and serum ferritin < 75 μg/L (or serum ferritin 75-300 μg/L and transferrin saturation < 20%) were randomized to ferric carboxymaltose (1000 mg iron) or placebo...
October 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28446804/the-effects-of-increasing-calcium-channel-blocker-dose-vs-adding-a-diuretic-to-treatment-regimens-for-patients-with-uncontrolled-hypertension
#11
Shigemasa Tani, Kei Asayama, Koji Oiwa, Shinsuke Harasawa, Katsuaki Okubo, Atsuhiko Takahashi, Ayumi Tanabe, Takayoshi Ohkubo, Atsushi Hirayama, Toshio Kushiro
In patients with insufficient blood pressure (BP) control, despite using a combination regimen containing an angiotensin receptor blocker and a calcium channel blocker (CCB), whether a greater dose of CCB or adding a diuretic is more effective at lowering BP remains unclear. We conducted a multicenter randomized clinical trial to compare the efficacy of switching from the daily administration of a single-pill fixed-dose combination of irbesartan (100 mg) and amlodipine (5 mg) to irbesartan (100 mg) with an increased dose of amlodipine (10 mg) (HD group, n=62) or irbesartan (100 mg) and amlodipine (5 mg) with 1 mg of indapamide (D group, n=63) in patients with poorly controlled hypertension...
October 5, 2017: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/28362187/three-dimensional-changes-in-head-shape-after-extended-sagittal-strip-craniectomy-with-wedge-ostectomies-and-helmet-therapy
#12
Pang-Yun Chou, Rami R Hallac, Shitel Patel, Min-Jeong Cho, Neil Stewart, James M Smartt, James R Seaward, Alex A Kane, Christopher A Derderian
OBJECTIVE Outcome studies for sagittal strip craniectomy have largely relied on the 2D measure of the cephalic index (CI) as the primary indicator of head shape. The goal of this study was to measure the 2D and 3D changes in head shape that occur after sagittal strip craniectomy and postoperative helmet therapy. METHODS The authors performed a retrospective review of patients treated with sagittal strip craniectomy at their institution between January 2012 and October 2015. Inclusion criteria were as follows: 1) isolated sagittal synostosis; 2) age at surgery < 200 days; and 3) helmet management by a single orthotist...
June 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28279660/validity-of-the-instrumented-push-and-release-test-to-quantify-postural-responses-in-persons-with-multiple-sclerosis
#13
Mahmoud El-Gohary, Daniel Peterson, Geetanjali Gera, Fay B Horak, Jessie M Huisinga
OBJECTIVE: To test the validity of wearable inertial sensors to provide objective measures of postural stepping responses to the push and release clinical test in people with multiple sclerosis. DESIGN: Cross-sectional study. SETTING: University medical center balance disorder laboratory. PARTICIPANTS: Total sample N=73; persons with multiple sclerosis (PwMS) n=52; healthy controls n=21. MAIN OUTCOME MEASURES: Stepping latency, time and number of steps required to reach stability, and initial step length were calculated using 3 inertial measurement units placed on participants' lumbar spine and feet...
July 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28100120/hybrid-stage-i-procedure-as-initial-palliation-for-neonate-with-hypoplastic-left-heart-syndrome-and-right-congenital-diaphragmatic-hernia
#14
Draginja Cvetkovic, Joseph Giamelli, Michael Lyew, Markus Erb, Suvro Sett, Youmna DiStefano
During the past decade, a hybrid procedure has emerged and dramatically evolved as an alternative stage I palliation to the conventional Norwood procedure in neonates with hypoplastic left heart syndrome (HLHS). The hybrid approach avoids the need for cardiopulmonary bypass (CPB) utilizing stenting of the arterial duct and bilateral pulmonary artery banding. Cerebral and coronary perfusion pressure is maintained, and the pulmonary vasculature is protected from higher systemic pressure. Elimination of risks associated with CPB gains vital time to stabilize the patient and correct coexisting noncardiac anomalies and allows growth in preparation for the later stages of the Fontan pathway...
June 2017: Seminars in Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/27896005/cerebral-blood-flow-is-decoupled-from-blood-pressure-and-linked-to-eeg-bursting-after-resuscitation-from-cardiac-arrest
#15
Christian Crouzet, Robert H Wilson, Afsheen Bazrafkan, Maryam H Farahabadi, Donald Lee, Juan Alcocer, Bruce J Tromberg, Bernard Choi, Yama Akbari
In the present study, we have developed a multi-modal instrument that combines laser speckle imaging, arterial blood pressure, and electroencephalography (EEG) to quantitatively assess cerebral blood flow (CBF), mean arterial pressure (MAP), and brain electrophysiology before, during, and after asphyxial cardiac arrest (CA) and resuscitation. Using the acquired data, we quantified the time and magnitude of the CBF hyperemic peak and stabilized hypoperfusion after resuscitation. Furthermore, we assessed the correlation between CBF and MAP before and after stabilized hypoperfusion...
November 1, 2016: Biomedical Optics Express
https://www.readbyqxmd.com/read/27831550/impact-of-a-dedicated-neonatal-stabilization-room-and-process-changes-on-stabilization-time
#16
S Shivananda, S Gupta, S Thomas, L Babb, C-L Meyer, A Symington, B Paes, G K Suresh
OBJECTIVE: Our objective was to evaluate the impact of a dedicated resuscitation and stabilization (RAS) room and process changes on infant stabilization time. STUDY DESIGN: A prospective quality improvement study was conducted on preterm infants in a tertiary care center. A dedicated RAS room, preresuscitation huddle, infant-isolette-ventilator pairing and improved documentation were implemented. The primary outcome was median time to stabilization and secondary outcomes were illness severity on day 1 and morbidity at discharge...
February 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/27639218/postural-stabilization-after-single-leg-vertical-jump-in-individuals-with-chronic-ankle-instability
#17
COMPARATIVE STUDY
Guilherme S Nunes, Marcos de Noronha
OBJECTIVES: To investigate the impact different ways to define reference balance can have when analysing time to stabilization (TTS). Secondarily, to investigate the difference in TTS between people with chronic ankle instability (CAI) and healthy controls. DESIGN: Cross-sectional study. SETTING: Laboratory. PARTICIPANTS: Fifty recreational athletes (25 CAI, 25 controls). MAIN OUTCOME MEASURES: TTS of the center of pressure (CoP) after maximal single-leg vertical jump using as reference method the single-leg stance, pre-jump period, and post-jump period; and the CoP variability during the reference methods...
November 2016: Physical Therapy in Sport
https://www.readbyqxmd.com/read/27579802/dynamic-balance-is-impaired-after-a-match-in-young-elite-soccer-players
#18
Massimiliano Pau, Federico Mereu, Marco Melis, Bruno Leban, Federica Corona, Gianfranco Ibba
PURPOSE: The aim of this study is to assess the effect of actual match effort on dynamic balance abilities in young elite soccer players. METHODS: Seventeen Under 15 male players who compete at national level participated in the study. Their dynamic balance was assessed by having them jump starting with both feet on the ground in a standing position and land on one foot only. Their vertical time to stabilization (vTTS) and postural sway were calculated before and after 35 min of an unofficial match...
November 2016: Physical Therapy in Sport
https://www.readbyqxmd.com/read/27533330/a-multifaceted-nursing-role-to-comply-with-neonatal-transport-regulations-in-maryland-the-tr-dr-nurse
#19
Beth C Diehl, Karen Frank
BACKGROUND: The Maryland Regional Neonatal Transport Program performs 800 transports annually. Historically transports utilized a neonatal nurse practitioner or neonatal transport nurse and 2 medics. A regulatory ruling at the state level mandated change in team composition. This institution elected to educate neonatal intensive care unit (NICU) staff nurses to become the providers for transports and to respond to deliveries requiring the NICU team. These nurses became the transport-delivery room nurse...
August 16, 2016: Advances in Neonatal Care: Official Journal of the National Association of Neonatal Nurses
https://www.readbyqxmd.com/read/27274423/influence-of-injury-on-dynamic-postural-control-in-runners
#20
Stacey Meardon, Anna Klusendorf, Thomas Kernozek
BACKGROUND: Injury has been linked with altered postural control in active populations. The association between running injury and dynamic postural control has not been examined. HYPOTHESIS/PURPOSE: The purpose of this study was to examine dynamic postural control in injured and uninjured runners using the Star Excursion Balance Test (SEBT), Time to Stabilization (TTS) of ground reaction forces following a single-leg landing, and postural stability indices reflecting the fluctuations in GRFs during single-leg landing and stabilization tasks (forward and lateral hop)...
June 2016: International Journal of Sports Physical Therapy
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