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Occlusion Training

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https://www.readbyqxmd.com/read/28224640/low-load-resistance-training-with-low-relative-pressure-produces-muscular-changes-similar-to-high-load-resistance-training
#1
Daeyeol Kim, Jeremy P Loenneke, Xin Ye, Debra A Bemben, Travis W Beck, Rebecca D Larson, Michael G Bemben
INTRODUCTION: The purpose of this study was to compare the acute and chronic response of high-load (HL) resistance training to low-load resistance training with a low blood flow restriction (LL-BFR) pressure. METHODS: Participants completed elbow flexion with either HL or LL-BFR, or non-exercise (CON). In the chronic study, participants in the HL and LL-BFR were trained for 8 weeks to determine differences in muscle size and strength. The acute study examined the changes in Pre/Post torque, muscle swelling, and blood lactate...
February 22, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28214579/motor-training-and-the-combination-of-action-observation-and-peripheral-nerve-stimulation-reciprocally-interfere-with-the-plastic-changes-induced-in-primary-motor-cortex-excitability
#2
Ambra Bisio, Laura Avanzino, Monica Biggio, Piero Ruggeri, Marco Bove
AO-PNS is a stimulation protocol combining action observation (AO) and peripheral nerve stimulation (PNS) to induce plasticity in the primary motor cortex (M1) (increased excitability). Another method to increase M1 excitability is motor training. The combination of two protocols, which individually induce long-term potentiation (LTP)-like plasticity in overlapping neural circuits, results in a transitory occlusion or reverse of this phenomenon. This study aimed to understand the neurophysiological mechanisms underlying AO-PNS by testing whether AO-PNS and motor training induced LTP-like plasticity in, at least partially, overlapping neural networks...
February 15, 2017: Neuroscience
https://www.readbyqxmd.com/read/28211462/zebrafish-tracking-using-convolutional-neural-networks
#3
Zhiping Xu, Xi En Cheng
Keeping identity for a long term after occlusion is still an open problem in the video tracking of zebrafish-like model animals, and accurate animal trajectories are the foundation of behaviour analysis. We utilize the highly accurate object recognition capability of a convolutional neural network (CNN) to distinguish fish of the same congener, even though these animals are indistinguishable to the human eye. We used data augmentation and an iterative CNN training method to optimize the accuracy for our classification task, achieving surprisingly accurate trajectories of zebrafish of different size and age zebrafish groups over different time spans...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28194343/the-effect-of-a-condylar-repositioning-plate-on-condylar-position-and-relapse-in-two-jaw-surgery
#4
Gyu Sik Jung, Taek Kyun Kim, Jeong Woo Lee, Jung Dug Yang, Ho Yun Chung, Byung Chae Cho, Kang Young Choi
BACKGROUND: Numerous condylar repositioning methods have been reported. However, most of them are 2-dimensional or are complex procedures that require a longer operation time and a highly trained surgeon. This study aims to introduce a new technique using a condylar repositioning plate and a centric relation splint to achieve a centric relationship. METHODS: We evaluated 387 patients who had undergone surgery for skeletal jaw deformities. During the operation, a centric relation splint, intermediate splint, final centric occlusion splint, and condylar repositioning plate along with an L-type mini-plate for LeFort I osteotomy or a bicortical screw for bilateral sagittal split ramus osteotomy were utilized for rigid fixation...
January 2017: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/28191797/digital-transillumination-in-caries-detection-versus-radiographic-and-clinical-methods-an-in-vivo-study
#5
Cynthia Lara-Capi, Maria Grazia Cagetti, Peter Lingström, Gianfranco Lai, Fabio Cocco, Charlotte Simark-Mattsso, Guglielmo Campus
OBJECTIVES: This paper was aimed to evaluate: a) the agreement between a near-infrared light transillumination device and clinical and radiographic examinations in caries lesion detection and b) the reliability of images captured by the transillumination device. METHODS: Two calibrated examiners evaluated the caries status in premolars and molars on 52 randomly selected subjects using: for the occlusal surfaces the transillumination device comparing it with a clinical examination, and for the approximal surfaces, the transillumination device with a radiographic examination (bitewings radiographs)...
February 13, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/28186878/latent-class-hough-forests-for-6-dof-object-pose-estimation
#6
Rigas Kouskouridas, Alykhan Tejani, Andreas Doumanoglou, Danhang Tang, Tae-Kyun Kim
In this paper we present Latent-Class Hough Forests, a method for object detection and 6 DoF pose estimation in heavily cluttered and occluded scenarios. We adapt a state of the art template matching feature into a scale-invariant patch descriptor and integrate it into a regression forest using a novel template-based split function. We train with positive samples only and we treat class distributions at the leaf nodes as latent variables. During testing we infer by iteratively updating these distributions, providing accurate estimation of background clutter and foreground occlusions and, thus, better detection rate...
February 7, 2017: IEEE Transactions on Pattern Analysis and Machine Intelligence
https://www.readbyqxmd.com/read/28185073/natural-conception-rates-in-subfertile-couples-following-fertility-awareness-training
#7
P Frank-Herrmann, C Jacobs, E Jenetzky, C Gnoth, C Pyper, S Baur, G Freundl, M Goeckenjan, T Strowitzki
PURPOSE: To analyze cumulative pregnancy rates of subfertile couples after fertility awareness training. METHODS: A prospective observational cohort study followed 187 subfertile women, who had received training in self-observation of the fertile phase of the menstrual cycle with the Sensiplan method, for 8 months. The women, aged 21-47 years, had attempted to become pregnant for 3.5 years on average (range 1-8 years) before study entry. Amenorrhea, known tubal occlusion and severe male factor had been excluded...
February 9, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28183839/mr-imaging-of-individual-perfusion-reorganization-using-superselective-pseudocontinuous-arterial-spin-labeling-in-patients-with-complex-extracranial-steno-occlusive-disease
#8
V Richter, M Helle, M J P van Osch, T Lindner, A S Gersing, P Tsantilas, H-H Eckstein, C Preibisch, C Zimmer
BACKGROUND AND PURPOSE: Patients with multiple stenoses or occlusions of the extracranial arteries require an individualized diagnostic approach. We evaluated the feasibility and clinical utility of a novel MR imaging technique for regional perfusion imaging in this patient group. MATERIALS AND METHODS: Superselective pseudocontinuous arterial spin-labeling with a circular labeling spot enabling selective vessel labeling was added to routine imaging in a prospective pilot study in 50 patients (10 women, 70...
February 9, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28174613/banknote-recognition-investigating-processing-and-cognition-framework-using-competitive-neural-network
#9
Oyebade K Oyedotun, Adnan Khashman
Humans are apt at recognizing patterns and discovering even abstract features which are sometimes embedded therein. Our ability to use the banknotes in circulation for business transactions lies in the effortlessness with which we can recognize the different banknote denominations after seeing them over a period of time. More significant is that we can usually recognize these banknote denominations irrespective of what parts of the banknotes are exposed to us visually. Furthermore, our recognition ability is largely unaffected even when these banknotes are partially occluded...
February 2017: Cognitive Neurodynamics
https://www.readbyqxmd.com/read/28174436/cardiovascular-response-to-bouts-of-exercise-with-blood-flow-restriction
#10
Kestutis Bunevicius, Arturas Sujeta, Kristina Poderiene, Birute Zachariene, Viktoras Silinskas, Rimantas Minkevicius, Jonas Poderys
[Purpose] Occlusion training with low-intensity resistance exercises and blood flow restriction increases muscle cross-sectional area and strength. This form of training is used in rehabilitation; therefore, the aim of this study was to examine the effect of one occlusion training session on the cardiovascular response to bouts of exercise. [Subjects and Methods] Two groups took part: a control group without blood flow restriction and an experimental group with blood flow restriction. A single training session was used with the exercise intensity set at 40% of the one repetition maximum...
December 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28170412/expertise-differences-in-anticipatory-judgements-during-a-temporally-and-spatially-occluded-task
#11
Joe Causer, Nicholas J Smeeton, A Mark Williams
There is contradictory evidence surrounding the role of critical cues in the successful anticipation of penalty kicks in soccer. In the current study, skilled and less-skilled soccer goalkeepers were required to anticipate when viewing penalty kicks that were both spatially (full body; hip region) and temporally (-160 ms, -80 ms before, foot-ball contact) occluded. The skilled group outperformed the less-skilled group in all conditions. Participants performed better in the full body condition when compared to hip region condition...
2017: PloS One
https://www.readbyqxmd.com/read/28133530/endurance-training-induces-fiber-type-specific-revascularization-in-hindlimb-skeletal-muscles-of-rats-with-chronic-heart-failure
#12
Kamal Ranjbar, Malihe Ardakanizade, Farzad Nazem
OBJECTIVES: Previous studies showed that skeletal muscle microcirculation was reduced in chronic heart failure. The aim of this study was to investigate the effects of endurance training on capillary and arteriolar density of fast and slow twitch muscles in rats with chronic heart failure. MATERIALS AND METHODS: Four weeks after surgeries (left anterior descending (LAD) artery occlusion), chronic heart failure rats were divided into 3 groups: Sham (Sham, n=10); Sedentary (Sed, n=10); Exercise training (Ex, n=10)...
January 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28122720/similar-pattern-of-change-in-v%C3%AC-o2-kinetics-vascular-function-and-tissue-oxygen-provision-following-an-endurance-training-stimulus-in-older-and-young-adults
#13
Kaitlin M McLay, Juan M Murias, Donald H Paterson
PURPOSE: To examine the time-course of changes in the oxygen uptake (V̇O2) kinetics response subsequent to short-term exercise training (i.e., 24h, 48h, 72h, and 120h post-training) and examine the relationship with the time-course of changes in microvascular (deoxygenated hemoglobin concentration ([HHb])/V̇O2 ratio) and macrovascular (flow-mediated dilation (FMD)) O2 delivery to the active tissues/limbs. METHODS: Seven healthy older (OA: 74±6yr) and young men (YA: 25±3yr) completed three endurance cycling exercise training sessions at 70% V̇O2max Moderate-intensity exercise on-transient V̇O2 (measured breath-by-breath) and [HHb] (measured by near-infrared spectroscopy) were modeled with a mono-exponential and normalized (0-100% of response) and the [HHb]/V̇O2 ratio was calculated...
January 25, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28121225/prospective-prehospital-evaluation-of-the-cincinnati-stroke-triage-assessment-tool
#14
Jason T McMullan, Brian Katz, Joseph Broderick, Pamela Schmit, Heidi Sucharew, Opeolu Adeoye
BACKGROUND AND PURPOSE: A simple, easily adoptable scale with good performance characteristics is needed for EMS providers to appropriately triage suspected stroke patients to comprehensive stroke centers (CSC). Many existing tools are complex, require substantial training, or have not been prospectively validated in the prehospital setting. We describe the feasibility and effectiveness of prehospital implementation of our previously retrospectively derived and validated Cincinnati Stroke Triage Assessment Tool (C-STAT) to identify subjects with severe stroke (NIHSS ≥15) among all prehospital patients with clinical suspicion of stroke/TIA...
January 25, 2017: Prehospital Emergency Care
https://www.readbyqxmd.com/read/28118025/inter-rater-variability-for-ct-angiography-evaluation-between-neurologists-and-neuroradiologist-in-acute-stroke-patients
#15
Michal Bar, Jir Kra, Tomas Jonszta, Vaclav Marcian, Martin Kuliha, Robert Mikulík
OBJECTIVES: The diagnosis of arterial occlusion has a considerable impact on the indication of mechanical thrombectomy, and computed tomography angiography (CTA) is recommended in management of acute stroke. The goal of present study is to assess the inter-rater agreement in the diagnosis of occlusion of intracranial arteries on CTA between a neuroradiologist and neurologists. METHODS: CTA images of 75 acute-stroke patients were evaluated for occlusion of intracranial arteries by an experienced interventional neuroradiologist, stroke and general neurologist...
January 24, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28117813/setting-up-a-stroke-team-algorithm-and-conducting-simulation-based-training-in-the-emergency-department-a-practical-guide
#16
Damla Tahtali, Ferdinand Bohmann, Peter Rostek, Marlies Wagner, Helmuth Steinmetz, Waltraud Pfeilschifter
Time is of the essence when caring for an acute stroke patient. The ultimate goal is to restore blood flow to the ischemic brain. This can be achieved by either thrombolysis with recombinant tissue-plasminogen activator (rt-PA), the standard therapy for stroke patients who present within the first hours of symptom onset without contraindications, or by an endovascular approach, if a proximal brain vessel occlusion is detected. As the efficacy of both therapies declines over time, every minute saved along the way will improve the patient's outcome...
January 15, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28091936/task-specific-motor-rehabilitation-therapy-after-stroke-improves-performance-in-a-different-motor-task-translational-evidence
#17
M El Amki, P Baumgartner, O Bracko, A R Luft, S Wegener
While the stroke survivor with a motor deficit strives for recovery of all aspects of daily life movements, neurorehabilitation training is often task specific and does not generalize to movements other than the ones trained. In rodent models of post-stroke recovery, this problem is poorly investigated as the training task is often the same as the one that measures motor function. The present study investigated whether motor training by pellet reaching translates into enhancement of different motor functions in rats after stroke...
January 14, 2017: Translational Stroke Research
https://www.readbyqxmd.com/read/28091578/temporal-dynamics-of-cerebellar-and-motor-cortex-physiological-processes-during-motor-skill-learning
#18
D Spampinato, P Celnik
Learning motor tasks involves distinct physiological processes in the cerebellum (CB) and primary motor cortex (M1). Previous studies have shown that motor learning results in at least two important neurophysiological changes: modulation of cerebellar output mediated in-part by long-term depression of parallel fiber-Purkinje cell synapse and induction of long-term plasticity (LTP) in M1, leading to transient occlusion of additional LTP-like plasticity. However, little is known about the temporal dynamics of these two physiological mechanisms during motor skill learning...
January 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28088558/the-effects-of-upper-body-exercise-across-different-levels-of-blood-flow-restriction-on-arterial-occlusion-pressure-and-perceptual-responses
#19
Kevin T Mattocks, Matthew B Jessee, Brittany R Counts, Samuel L Buckner, J Grant Mouser, Scott J Dankel, Gilberto C Laurentino, Jeremy P Loenneke
Recent studies have investigated relative pressures that are applied during blood flow restriction exercise ranging from 40%-90% of resting arterial occlusion pressure; however, no studies have investigated relative pressures below 40% arterial occlusion pressure. The purpose of this study was to characterize the cardiovascular and perceptual responses to different levels of pressures. Twenty-six resistance trained participants performed four sets of unilateral elbow flexion exercise using 30% of their 1RM in combination with blood flow restriction inflated to one of six relative applied pressures (0%, 10%, 20%, 30%, 50%, 90% arterial occlusion pressure)...
January 11, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28048545/we-de-207a-04-advances-in-radiological-neuro-endovascular-interventional-imaging
#20
S Rudin
: 1. Parallels in the evolution of x-ray angiographic systems and devices used for minimally invasive endovascular therapy Charles Strother - DSA, invented by Dr. Charles Mistretta at UW-Madison, was the technology which enabled the development of minimally invasive endovascular procedures. As DSA became widely available and the potential benefits for accessing the cerebral vasculature from an endovascular approach began to be apparent, industry began efforts to develop tools for use in these procedures...
June 2016: Medical Physics
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