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Occlusion Training

David J Tennent, Christina M Hylden, Anthony E Johnson, Travis C Burns, Jason M Wilken, Johnny G Owens
INTRODUCTION: Quadriceps strength after arthroscopic knee procedures is frequently diminished several years postoperation. Blood flow restriction (BFR) training uses partial venous occlusion while performing submaximal exercise to induce muscle hypertrophy and strength improvements. The purpose of this study was to evaluate BFR as a postoperative therapeutic intervention after knee arthroscopy. METHODS: A randomized controlled pilot study comparing physical therapy with and without BFR after knee arthroscopy was conducted...
October 5, 2016: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
G Wang, P-P Wang, P-P Meng, C Han, S-W Yue
OBJECTIVE: Cerebral ischemia-reperfusion is the major pathophysiological process in stroke and can cause severe and lasting sequel. However, an intensive exercise training can potentially effect a quick and efficient recovery. We used swimming training on rats with cerebral ischemia-reperfusion (CIR) and explore the underlying neuroprotective mechanism(s), including the effects of intensive training on the expression of semaphorin 3A (Sema3A) and its receptor Neuropilin-1 (NRP-1). MATERIALS AND METHODS: The middle cerebral artery occlusion/reperfusion (MCAO/R) model was established by inserting a thread into the middle cerebral artery of Sprague-Dawley (SD) rats, and randomly dividing into the control group and training groups for different training intensities...
September 2016: European Review for Medical and Pharmacological Sciences
Dordi Austeng, Tora Sund Morken, Stine Bolme, Turid Follestad, Vidar Halsteinli
BACKGROUND: Intravitreal injections (IVI) of anti-vascular endothelial growth factor (anti-VEGF) now improve or stabilize visual acuity in a number of previously untreatable eye diseases, of which the main are age-related macular degeneration, retinal vein occlusion and diabetic macular edema. Most patients require multiple injections over lengthy periods of time and the prevalence of treatable conditions is increasing. Anti-VEGF IVI normally administered by physicians, therefore represent a considerable workload on ophthalmologic clinics and will continue to do so in the near future...
October 1, 2016: BMC Ophthalmology
Luana Goés Soares, Igor Reali Costa, Jadimar Dos Santos Brum Júnior, Wyllerson Silveira Bronzon Cerqueira, Evandro Silveira de Oliveira, Dhelfeson Willya Douglas de Oliveira, Patricia Furtado Gonçalves, José Cristiano Ramos Glória, Karine Tais Aguiar Tavano, Olga Dumont Flecha
OBJECTIVE: The aim of this study was to determine the prevalence of bruxism in students at the Federal University of the Jequitinhonha and Mucuri Valleys in Brazil. The secondary objectives were to identify the factors associated with bruxism; prevalence of dental wear; and to distinguish the signs and symptoms of temporomandibular dysfunction when present, and verify its relationship with bruxism. METHODS: Two hundred fifty-three students (106 males, 147 females) were clinically examined and answered a questionnaire...
August 12, 2016: Cranio: the Journal of Craniomandibular Practice
Chi-Chun Chen, Chin-Lung Yang, Ching-Ping Chang
This study presents an animal mobility system, equipped with a positioning running wheel (PRW), as a way to quantify the efficacy of an exercise activity for reducing the severity of the effects of the stroke in rats. This system provides more effective animal exercise training than commercially available systems such as treadmills and motorized running wheels (MRWs). In contrast to an MRW that can only achieve speeds below 20 m/min, rats are permitted to run at a stable speed of 30 m/min on a more spacious and high-density rubber running track supported by a 15 cm wide acrylic wheel with a diameter of 55 cm in this work...
2016: Journal of Visualized Experiments: JoVE
T S Nobre, R V Groehs, L F Azevedo, L M Antunes-Correa, D G Martinez, M J N N Alves, C E Negrao
It remains unknown whether or not a reduction in muscle sympathetic nerve activity in heart failure patients is associated over time with the effects of long- or short-term repeated exercise. 10 chronic heart failure patients, age 49±3 years old, functional class I-III NYHA, ejection fraction <40% were randomly submitted to either an acute bout of moderate continuous exercise OR high-intensity interval exercise. Muscle sympathetic nerve activity (microneurography) and forearm blood flow (venous occlusion plethysmography) were evaluated pre- and post-exercise sessions...
September 27, 2016: International Journal of Sports Medicine
Yichen Lu, Mei Yan Lee, Shu Zhu, Talid Sinno, Scott L Diamond
During clotting under flow, platelets bind and activate on collagen and release autocrinic factors such as ADP and thromboxane, while tissue factor (TF) on the damaged wall leads to localized thrombin generation. Towards patient-specific simulation of thrombosis, a multiscale approach was developed to account for: platelet signalling [neural network (NN) trained by pairwise agonist scanning (PAS), PAS-NN], platelet positions (lattice kinetic Monte Carlo, LKMC), wall-generated thrombin and platelet-released ADP/thromboxane convection-diffusion (partial differential equation, PDE) and flow over a growing clot (lattice Boltzmann)...
September 25, 2016: Mathematical Medicine and Biology: a Journal of the IMA
Raghu Kolluri, Kathleen Gibson, Daniel Cher, Monte Madsen, Robert Weiss, Nick Morrison
OBJECTIVE: Cyanoacrylate closure (CAC) was shown in the recently published VenaSeal Sapheon Closure System vs Radiofrequency Ablation for Incompetent Great Saphenous Veins (VeClose) randomized clinical study to be an effective and noninferior option (in terms of both safety and effectiveness) to radiofrequency ablation (RFA) in the treatment of incompetent great saphenous veins. The objectives of this analysis were to report the efficacy and safety outcomes of the VeClose roll-in (training) group treated with CAC by physicians who had received device use training but had no prior treatment experience with the technique and to compare the outcomes with those from the randomized RFA and CAC groups...
October 2016: Journal of Vascular Surgery. Venous and Lymphatic Disorders
Kevin Laudner, Jose Vazquez, Noelle Selkow, Keith Meister
CONTEXT: Baseball players, specifically pitchers, with symptomatic neurovascular occlusion often initially complain of arm fatigue, loss of ball control, and velocity. As the compression continues complaints may manifest into dull pain, paresthesia, and decreased grip strength. OBJECTIVE: To determine the correlation between upper extremity blood flow volume and grip strength among baseball pitchers. DESIGN: cross-sectional. SETTING: Athletic training room...
August 24, 2016: Journal of Sport Rehabilitation
Stephan van der Zwaard, Richard T Jaspers, Ilse J Blokland, Chantal Achterberg, Jurrian M Visser, Anne R den Uil, Mathijs J Hofmijster, Koen Levels, Dionne A Noordhof, Arnold de Haan, Jos J de Koning, Willem J van der Laarse, Cornelis J de Ruiter
BACKGROUND: Near-infrared spectroscopy (NIRS) measurements of oxygenation reflect O2 delivery and utilization in exercising muscle and may improve detection of a critical exercise threshold. PURPOSE: First, to detect an oxygenation breakpoint (Δ[O2HbMb-HHbMb]-BP) and compare this breakpoint to ventilatory thresholds during a maximal incremental test across sexes and training status. Second, to assess reproducibility of NIRS signals and exercise thresholds and investigate confounding effects of adipose tissue thickness on NIRS measurements...
2016: PloS One
Stefano Botti, Laura Orlando, Gianpaolo Gargiulo, Valentina De Cecco, Marina Banfi, Lorenzo Duranti, Emanuela Samarani, Maria Giovanna Netti, Marco Deiana, Vera Galuppini, Adriana Concetta Pignatelli, Rosanna Ceresoli, Alessio Vedovetto, Elena Rostagno, Marilena Bambaci, Cristina Dellaversana, Stefano Luminari, Francesca Bonifazi
Veno-occlusive disease (VOD) is a complication arising from the toxicity of conditioning regimens that have a significant impact on the survival of patients who undergo stem cell transplantation. There are several known risk factors for developing VOD and their assessment before the start of conditioning regimens could improve the quality of care. Equally important are early identification of signs and symptoms ascribable to VOD, rapid diagnosis, and timely adjustment of support therapy and treatment. Nurses have a fundamental role at the stages of assessment and monitoring for signs and symptoms; therefore, they should have documented skills and training...
2016: Ecancermedicalscience
Zhifei Zhou, Fen Liu, Shuning Shen, Linjuan Shang, Lei Shang, Xiaojing Wang
BACKGROUND: This study aimed to investigate the prevalence and associated factors of malocclusion among children with primary dentition in Xi'an, China. METHODS: A total of 2,974 subjects were selected from local schools in Xi'an city using a stratified cluster sampling method from January to September 2015. After screening samples according to the inclusion criteria, the final sample size comprised 2,235 pre-school children, with a mean age of 4.82 (SD, 1.76; range, 2...
2016: BMC Oral Health
Jeann L C Sabino-Carvalho, Thiago R Lopes, Tiago O Freitas, Thiago H N Ferreira, José E Succi, Antônio C Silva, Bruno M Silva
PURPOSE: Recent studies have reported ischemic preconditioning (IPC) can acutely improve endurance exercise performance in athletes. However, placebo and nocebo effects have not been sufficiently controlled, and the effect on aerobic metabolism parameters that determine endurance performance [e.g., oxygen cost of running, lactate threshold, and maximal oxygen uptake (V[Combining Dot Above]O2max)] has been equivocal. Thus, we circumvented limitations from previous studies to test the effect of IPC on aerobic metabolism parameters and endurance performance in well-trained runners...
August 30, 2016: Medicine and Science in Sports and Exercise
Pénélope Paradis-Deschênes, Denis R Joanisse, François Billaut
Muscle ischemia and reperfusion induced by ischemic preconditioning (IPC) can improve performance in various activities. However, the underlying mechanisms are still poorly understood. The purpose of this study was to examine the effects of IPC on muscle hemodynamics and oxygen (O2) uptake during repeated maximal contractions. In a cross-over, randomized, single-blind study, 10 strength-trained men performed 5 sets of 5 maximal voluntary knee extensions of the right leg on an isokinetic dynamometer, preceded by either IPC of the right lower limb (3×5-min compression/5-min reperfusion cycles at 200 mm Hg) or sham (20 mm Hg)...
September 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
Gavino Casu, Michele Massimo Gulizia, Giulio Molon, Patrizio Mazzone, Andrea Audo, Giancarlo Casolo, Emilio Di Lorenzo, Michele Portoghese, Christian Pristipino, Renato Pietro Ricci, Sakis Themistoclakis, Luigi Padeletti, Claudio Tondo, Sergio Berti, Jacopo Andrea Oreglia, Gino Gerosa, Marco Zanobini, Gian Paolo Ussia, Giuseppe Musumeci, Francesco Romeo, Roberto Di Bartolomeo
Atrial fibrillation (AF) is the most common arrhythmia and its prevalence is increasing due to the progressive aging of the population. About 20% of strokes are attributable to AF and AF patients are at 5-fold increased risk of stroke. The mainstay of treatment of AF is the prevention of thromboembolic complications with oral anticoagulation therapy. Drug treatment for many years has been based on the use of vitamin K antagonists, but recently newer and safer molecules have been introduced (dabigatran etexilate, rivaroxaban, apixaban and edoxaban)...
July 2016: Giornale Italiano di Cardiologia
Allison J Brager, Tao Yang, J Christopher Ehlen, Roger P Simon, Robert Meller, Ketema N Paul
STUDY OBJECTIVES: Episodes of brief limb ischemia (remote preconditioning) in mice induces tolerance to modeled ischemic stroke (focal brain ischemia). Since stroke outcomes are in part dependent on sleep-wake history, we sought to determine if sleep is critical for the neuroprotective effect of limb ischemia. METHODS: EEG/EMG recording electrodes were implanted in mice. After a 24 h baseline recording, limb ischemia was induced by tightening an elastic band around the left quadriceps for 10 minutes followed by 10 minutes of release for two cycles...
August 19, 2016: Sleep
Guangwei Gao, Jian Yang, Xiaoyuan Jing, Pu Huang, Juliang Hua, Dong Yue
In many real-world applications such as smart card solutions, law enforcement, surveillance and access control, the limited training sample size is the most fundamental problem. By making use of the low-rank structural information of the reconstructed error image, the so-called nuclear norm-based matrix regression has been demonstrated to be effective for robust face recognition with continuous occlusions. However, the recognition performance of nuclear norm-based matrix regression degrades greatly in the face of the small sample size problem...
2016: PloS One
Esko Lehtonen, Heidi Sahlberg, Emilia Rovamo, Heikki Summala
Encouraging more children to bicycle would produce both environmental and health benefits, but bicycling accidents are a major source of injuries and fatalities among children. One reason for this may be children's less developed hazard perception skills. We assume that children's situation awareness could be trained with a computer based learning game, which should also improve their hazard perception skills. In this paper, we present a prototype for such a game and pilot it with 8-9year old children. The game consisted of videos filmed from a bicyclist's perspective...
August 2, 2016: Accident; Analysis and Prevention
A M Tjiam, W L Asjes-Tydeman, G Holtslag, E Vukovic, M M Sinoo, S E Loudon, J Passchier, H J de Koning, H J Simonsz
PURPOSE: This implementation study evaluated orthoptists' use of an educational cartoon ("the Patchbook") and other measures to improve compliance with occlusion therapy for amblyopia. METHODS: Participating orthoptists provided standard orthoptic care for one year, adding the Patchbook in the second year. They attended courses on compliance and intercultural communication by communication skills training. Many other compliance-enhancing measures were initiated...
September 2016: Strabismus
K Mashayekhi, H J Büttner
Chronic occlusion of coronary arteries also known as chronic total occlusions (CTO) are found in approximately 20 % of patients undergoing percutaneous coronary interventions (PCI) and in approximately 50 % of patients after coronary artery bypass grafts (CABG). As a result of technical advancements in retrograde recanalization techniques specialized centers can now achieve success rates of over 85 %, regardless of the CTO anatomy. Given the complexity of retrograde CTO techniques, a consensus paper issued by the Euro CTO Club requires interventional cardiologists to have sufficient experience in antegrade approaches (>300 antegrade CTO cases and >50 per year) with an additional training program (25 retrograde cases each as first and second operating surgeon) before becoming a qualified independent retrograde surgeon...
August 2, 2016: Herz
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