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Neurodynamics

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https://www.readbyqxmd.com/read/28904379/a-screening-mechanism-differentiating-true-from-false-pain-during-empathy
#1
Ya-Bin Sun, Xiao-Xiao Lin, Wen Ye, Ning Wang, Jin-Yan Wang, Fei Luo
Empathizing with another's suffering is important in social interactions. Empathic behavior is selectively elicited from genuine, meaningful pain but not from fake, meaningless scenarios. However, the brain's screening mechanism of false information from meaningful events and the time course for the screening process remains unclear. Using EEG combined with principle components analysis (PCA) techniques, here we compared temporal neurodynamics between the observation of pain and no-pain pictures as well as between true (painful expressions and needle-penetrated arms) and false (needle-penetrated faces with neutral expressions) pain pictures...
September 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28869435/in-vivo-effects-of-limb-movement-on-nerve-stretch-strain-and-tension-a-systematic-review
#2
Tibor Szikszay, Toby Hall, Harry von Piekartz
BACKROUND: The mechanical behavior of the peripheral nervous system under elongation and tension has not been adequately established in vivo. OBJECTIVE: The purpose of this review is to investigate the mechanical behavior of the peripheral nervous system in vivo. METHODS: In vivo studies which evaluated the effects of limb movement and neurodynamic tests on peripheral nerve biomechanics were systematically searched in PubMed (Medline), the Cochrane Database, CINAHL, PEDro, Embase and Web of Science...
August 25, 2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/28855792/addressing-neurodynamic-irritability-in-a-patient-with-adhesive-capsulitis-a-case-report
#3
Kevin Farrell, Katherine Lampe
BACKGROUND: Patients with adhesive capsulitis are commonly seen by physical therapists. Pain and limited shoulder motion from adhesive capsulitis have at times been linked to neural irritation. The purpose of this case is to describe the examination and intervention of a patient with adhesive capsulitis who appeared to have a coexisting, underlying neural irritation. This paper emphasizes how the neurological component must initially be identified and addressed for a successful outcome...
February 2017: Journal of Manual & Manipulative Therapy
https://www.readbyqxmd.com/read/28855791/impact-of-shoulder-internal-rotation-on-normal-sensory-response-during-ulnar-nerve-biased-neurodynamic-testing-of-asymptomatic-individuals
#4
Mark Gugliotti, Danielle Cohen, Angela Hernandez, Kristen Hinrichs, Nicole Osmundsen
OBJECTIVE: To determine if substitution of shoulder internal rotation for external rotation during the upper limb neurodynamic test (ULNT3) evokes comparable ulnar nerve sensory responses in asymptomatic individuals. METHODS: Range of motion, quality, quantity, and distribution of sensory responses in 50 asymptomatic individuals during the traditional ULNT3 were compared to identical measures during an experimental maneuver using shoulder internal rotation. Quality and quantity of sensory responses were recorded using a 10-cm visual analog scale...
February 2017: Journal of Manual & Manipulative Therapy
https://www.readbyqxmd.com/read/28855790/safety-of-lower-extremity-neurodynamic-exercises-in-adults-with-diabetes-mellitus-a-feasibility-study
#5
Benjamin S Boyd, Robert J Nee, Betty Smoot
OBJECTIVES: Neurodynamic exercises aim to improve neural mechanosensitivity in order to promote pain-free movement and function. People with diabetes mellitus (DM) may be candidates for neurodynamic exercises to address common DM-related impairments such as reduced lower extremity range of motion (ROM) and altered neural mechanosensitivity. However, no studies have examined the safety and immediate effects of neurodynamic exercise in people with DM. This study aims to determine the feasibility of applying neurodynamic exercises in adults with DM by evaluating the rate of adverse events and quantifying immediate changes in straight leg raise (SLR) ROM...
February 2017: Journal of Manual & Manipulative Therapy
https://www.readbyqxmd.com/read/28838857/value-of-physical-tests-in-diagnosing-cervical-radiculopathy-a-systematic-review
#6
REVIEW
Erik J Thoomes, Sarita van Geest, Danielle A van der Windt, Deborah Falla, Arianne P Verhagen, Bart W Koes, Marloes Thoomes-de Graaf, Barbara Kuijper, Wendy Gm Scholten-Peeters, Carmen L Vleggeert-Lankamp
Background context In clinical practice, the diagnosis of cervical radiculopathy is based on information from the patient history, physical examination and diagnostic imaging. Various physical tests may be performed, but their diagnostic accuracy is unknown. Purpose To summarize and update the evidence on diagnostic performance of tests carried out during a physical examination for the diagnosis of cervical radiculopathy. Study design Review of the accuracy of diagnostic tests. Study Sample Diagnostic studies comparing results of tests performed during a physical examination in diagnosing cervical radiculopathy with a reference standard of imaging or surgical findings...
August 21, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28734168/effect-of-neurodynamic-mobilization-on-fluid-dispersion-in-median-nerve-at-the-level-of-the-carpal-tunnel-a-cadaveric-study
#7
M Boudier-Revéret, K K Gilbert, D R Allégue, M Moussadyk, J M Brismée, P S Sizer, V Feipel, P M Dugailly, S Sobczak
OBJECTIVES: To evaluate the effect of neurodynamics mobilization (NDM) on an artificially induced edema in the median nerve at the level of the carpal tunnel in unembalmed cadavers and to assess whether NDM tensioning techniques (TT) and NDM sliding techniques (SLT) induce similar effects on intraneural fluid dispersion. DESIGN: Fourteen upper extremities of seven unembalmed cadavers were used in this study. A biomimetic solution was injected directly under the epineurium of the median nerve at the level of the proximal transverse carpal ligament...
October 2017: Musculoskeletal Science & Practice
https://www.readbyqxmd.com/read/28709222/population-density-equations-for-stochastic-processes-with-memory-kernels
#8
Yi Ming Lai, Marc de Kamps
We present a method for solving population density equations (PDEs)--a mean-field technique describing homogeneous populations of uncoupled neurons-where the populations can be subject to non-Markov noise for arbitrary distributions of jump sizes. The method combines recent developments in two different disciplines that traditionally have had limited interaction: computational neuroscience and the theory of random networks. The method uses a geometric binning scheme, based on the method of characteristics, to capture the deterministic neurodynamics of the population, separating the deterministic and stochastic process cleanly...
June 2017: Physical Review. E
https://www.readbyqxmd.com/read/28706244/predicting-magnetostimulation-thresholds-in-the-peripheral-nervous-system-using-realistic-body-models
#9
Mathias Davids, Bastien Guérin, Matthias Malzacher, Lothar R Schad, Lawrence L Wald
Rapid switching of applied magnetic fields in the kilohertz frequency range in the human body induces electric fields powerful enough to cause Peripheral Nerve Stimulation (PNS). PNS has become one of the main constraints on the use of high gradient fields for fast imaging with the latest MRI gradient technology. In recent MRI gradients, the applied fields are powerful enough that PNS limits their application in fast imaging sequences like echo-planar imaging. Application of Magnetic Particle Imaging (MPI) to humans is similarly PNS constrained...
July 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28704626/the-effectiveness-of-neural-mobilization-for-neuro-musculoskeletal-conditions-a-systematic-review-and-meta-analysis
#10
Annalie Basson, Benita Olivier, Richard Ellis, Michel Coppieters, Aimee Stewart, Witness Mudzi
Study Design Systematic review with meta-analysis. Background Neural mobilization (NM) or neurodynamics is a movement-based intervention aimed at restoring the homeostasis in and around the nervous system. The current level of evidence for NM is largely unknown. Objectives To determine the efficacy of NM for musculoskeletal conditions with a neuropathic component. Methods Databases were searched for randomised trials investigating the effect of NM for neuro-musculoskeletal conditions. Standard methods for article identification, selection and quality appraisal were used...
July 13, 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28678646/pain-areas-and-mechanosensitivity-in-patients-with-chronic-pelvic-pain-syndrome-a-controlled-clinical-investigation
#11
Jörgen Quaghebeur, Jean-Jacques Wyndaele, Stefan De Wachter
OBJECTIVE: A thorough clinical assessment including physical examination is crucial in a diagnostic work-up, including in patients with chronic pelvic pain syndrome (CPPS). This study investigated the prevalence of pain areas and the mechanosensitivity of peripheral nerves in patients with CPPS and compared the findings with a healthy control group. MATERIALS AND METHODS: Healthy volunteers and patients diagnosed with CPPS were assessed with physical examinations and neurodynamic testing...
July 5, 2017: Scandinavian Journal of Urology
https://www.readbyqxmd.com/read/28631166/morphology-and-the-gradient-of-a-symmetric-potential-predict-gait-transitions-of-dogs
#12
Simon Wilshin, G Clark Haynes, Jack Porteous, Daniel Koditschek, Shai Revzen, Andrew J Spence
Gaits and gait transitions play a central role in the movement of animals. Symmetry is thought to govern the structure of the nervous system, and constrain the limb motions of quadrupeds. We quantify the symmetry of dog gaits with respect to combinations of bilateral, fore-aft, and spatio-temporal symmetry groups. We tested the ability of symmetries to model motion capture data of dogs walking, trotting and transitioning between those gaits. Fully symmetric models performed comparably to asymmetric with only a [Formula: see text] increase in the residual sum of squares and only one-quarter of the parameters...
August 2017: Biological Cybernetics
https://www.readbyqxmd.com/read/28623065/upper-limb-neurodynamic-test-1-in-patients-with-clinical-diagnosis-of-carpal-tunnel-syndrome-a-diagnostic-accuracy-study
#13
Maria-Constanza Trillos, Felipe Soto, Leonardo Briceno-Ayala
STUDY DESIGN: Diagnostic accuracy. INTRODUCTION: Upper limb neurodynamic test 1 (ULNT1) is used to evaluate the mechanical sensitivity especially in the peripheral nerves of the upper limbs. The reproduction of typical symptoms in the affected hand improves the estimation of the probability of carpal tunnel syndrome (CTS). However the test has not been evaluated sufficiently to determine its real usefulness. In the present study the diagnostic accuracy of ULNT1 as a clinical test for CTS was determined...
June 13, 2017: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/28608175/reliability-and-validity-of-clinical-tests-to-assess-the-anatomical-integrity-of-the-cervical-spine-in-adults-with-neck-pain-and-its-associated-disorders-part-1-a-systematic-review-from-the-cervical-assessment-and-diagnosis-research-evaluation-cadre-collaboration
#14
REVIEW
Nadège Lemeunier, S da Silva-Oolup, N Chow, D Southerst, L Carroll, J J Wong, H Shearer, P Mastragostino, J Cox, E Côté, K Murnaghan, D Sutton, P Côté
OBJECTIVE: To determine the reliability and validity of clinical tests to assess the anatomical integrity of the cervical spine in adults with neck pain and its associated disorders. METHODS: We updated the systematic review of the 2000-2010 Bone and Joint Decade Task Force on Neck Pain and its Associated Disorders. We also searched the literature to identify studies on the reliability and validity of Doppler velocimetry for the evaluation of cervical arteries. Two independent reviewers screened and critically appraised studies...
June 12, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28603349/neural-manual-vs-robotic-assisted-mobilization-to-improve-motion-and-reduce-pain-hypersensitivity-in-hand-osteoarthritis-study-protocol-for-a-randomized-controlled-trial
#15
Jorge Hugo Villafañe, Kristin Valdes, Grace Imperio, Alberto Borboni, Raquel Cantero-Téllez, Silvia Galeri, Stefano Negrini
[Purpose] The aim of the present study is to detail the protocol for a randomised controlled trial (RCT) of neural manual vs. robotic assisted on pain in sensitivity as well as analyse the quantitative and qualitative movement of hand in subjects with hand osteoarthritis. [Subjects and Methods] Seventy-two patients, aged 50 to 90 years old of both genders, with a diagnosis of hand Osteoarthritis (OA), will be recruited. Two groups of 36 participants will receive an experimental intervention (neurodynamic mobilization intervention plus exercise) or a control intervention (robotic assisted passive mobilization plus exercise) for 12 sessions over 4 weeks...
May 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28598433/refinement-of-learned-skilled-movement-representation-in-motor-cortex-deep-output-layer
#16
Qian Li, Ho Ko, Zhong-Ming Qian, Leo Y C Yan, Danny C W Chan, Gordon Arbuthnott, Ya Ke, Wing-Ho Yung
The mechanisms underlying the emergence of learned motor skill representation in primary motor cortex (M1) are not well understood. Specifically, how motor representation in the deep output layer 5b (L5b) is shaped by motor learning remains virtually unknown. In rats undergoing motor skill training, we detect a subpopulation of task-recruited L5b neurons that not only become more movement-encoding, but their activities are also more structured and temporally aligned to motor execution with a timescale of refinement in tens-of-milliseconds...
June 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/28575736/collective-neurodynamic-optimization-for-economic-emission-dispatch-problem-considering-valve-point-effect-in-microgrid
#17
Tiancai Wang, Xing He, Tingwen Huang, Chuandong Li, Wei Zhang
The economic emission dispatch (EED) problem aims to control generation cost and reduce the impact of waste gas on the environment. It has multiple constraints and nonconvex objectives. To solve it, the collective neurodynamic optimization (CNO) method, which combines heuristic approach and projection neural network (PNN), is attempted to optimize scheduling of an electrical microgrid with ten thermal generators and minimize the plus of generation and emission cost. As the objective function has non-derivative points considering valve point effect (VPE), differential inclusion approach is employed in the PNN model introduced to deal with them...
September 2017: Neural Networks: the Official Journal of the International Neural Network Society
https://www.readbyqxmd.com/read/28559951/neurodynamic-evaluation-of-hearing-aid-features-using-eeg-correlates-of-listening-effort
#18
Corinna Bernarding, Daniel J Strauss, Ronny Hannemann, Harald Seidler, Farah I Corona-Strauss
In this study, we propose a novel estimate of listening effort using electroencephalographic data. This method is a translation of our past findings, gained from the evoked electroencephalographic activity, to the oscillatory EEG activity. To test this technique, electroencephalographic data from experienced hearing aid users with moderate hearing loss were recorded, wearing hearing aids. The investigated hearing aid settings were: a directional microphone combined with a noise reduction algorithm in a medium and a strong setting, the noise reduction setting turned off, and a setting using omnidirectional microphones without any noise reduction...
June 2017: Cognitive Neurodynamics
https://www.readbyqxmd.com/read/28559668/effect-of-leg-dominance-gender-and-age-on-sensory-responses-to-structural-differentiation-of-straight-leg-raise-test-in-asymptomatic-subjects-a-cross-sectional-study
#19
Eva Sierra-Silvestre, María Torres Lacomba, Pedro de la Villa Polo
STUDY DESIGN: Cross-sectional study. OBJECTIVES: To assess the effect of structural differentiation on sensory responses of asymptomatic individuals to standard neurodynamic tests of straight leg raise (SLR) and to evaluate the relevance of leg dominance, gender, and age. BACKGROUND: SLR test is a well-known neurodynamic test among physical therapists; no studies to date have investigated the influence of gender, age, and leg dominance to the sensory responses of this neurodynamic test and its structured differentiating maneuver...
May 2017: Journal of Manual & Manipulative Therapy
https://www.readbyqxmd.com/read/28512438/are-neurodynamic-organizations-a-fundamental-property-of-teamwork
#20
Ronald H Stevens, Trysha L Galloway
When performing a task it is important for teams to optimize their strategies and actions to maximize value and avoid the cost of surprise. The decisions teams make sometimes have unintended consequences and they must then reorganize their thinking, roles and/or configuration into corrective structures more appropriate for the situation. In this study we ask: What are the neurodynamic properties of these reorganizations and how do they relate to the moment-by-moment, and longer, performance-outcomes of teams?...
2017: Frontiers in Psychology
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