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Neurorehabilitation and Neural Repair

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https://www.readbyqxmd.com/read/27932696/corpus-callosum-structural-integrity-is-associated-with-postural-control-improvement-in-persons-with-multiple-sclerosis-who-have-minimal-disability
#1
Daniel S Peterson, Geetanjali Gera, Fay B Horak, Brett W Fling
Background Improvement of postural control in persons with multiple sclerosis (PwMS) is an important target for neurorehabilitation. Although PwMS are able to improve postural performance with training, the neural underpinnings of these improvements are poorly understood. Objective To understand the neural underpinnings of postural motor learning in PwMS. Methods Supraspinal white matter structural connectivity in PwMS was correlated with improvements in postural performance (balancing on an oscillating surface over 25 trials) and retention of improvements (24 hours later)...
December 8, 2016: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/27932695/posture-dependent-corticomotor-excitability-differs-between-the-transferred-biceps-in-individuals-with-tetraplegia-and-the-biceps-of-nonimpaired-individuals
#2
Carrie L Peterson, Lynn M Rogers, Michael S Bednar, Anne M Bryden, Michael W Keith, Eric J Perreault, Wendy M Murray
Background Following biceps transfer to enable elbow extension in individuals with tetraplegia, motor re-education may be facilitated by greater corticomotor excitability. Arm posture modulates corticomotor excitability of the nonimpaired biceps. If arm posture also modulates excitability of the transferred biceps, posture may aid in motor re-education. Objective Our objective was to determine whether multi-joint arm posture affects corticomotor excitability of the transferred biceps similar to the nonimpaired biceps...
December 8, 2016: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/27913798/generalizability-of-the-maximum-proportional-recovery-rule-to-visuospatial-neglect-early-poststroke
#3
Caroline Winters, Erwin E H van Wegen, Andreas Daffertshofer, Gert Kwakkel
Background and objective Proportional recovery of upper-extremity motor function and aphasia after stroke may suggest common mechanisms for spontaneous neurobiological recovery. This study aimed to investigate if the proportional recovery rule also applies to visuospatial neglect (VSN) in right-hemispheric first-ever ischemic stroke patients and explored the possible common underlying mechanisms. Methods Patients with upper-limb paresis and VSN were included. Recovery defined as the change in Letter Cancellation Test (LCT) score at ~8 days and 6 months poststroke...
December 2, 2016: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/27913797/promoting-gait-recovery-and-limiting-neuropathic-pain-after-spinal-cord-injury-two-sides-of-the-same-coin
#4
Catherine Mercier, Meyke Roosink, Jason Bouffard, Laurent J Bouyer
Most persons living with a spinal cord injury experience neuropathic pain in the months following their lesion, at the moment where they receive intensive gait rehabilitation. Based on studies using animal models, it has been proposed that central sensitization in nociceptive pathways (maladaptive plasticity) and plasticity related to motor learning (adaptive plasticity) share common neural mechanisms and compete with each other. This article aims to address the discrepancy between the growing body of basic science literature supporting this hypothesis and the general belief in rehabilitation research that pain and gait rehabilitation represent two independent problems...
December 2, 2016: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/27913796/a-randomized-controlled-trial-of-assisted-intention-monitoring-for-the-rehabilitation-of-executive-impairments-following-acquired-brain-injury
#5
Fergus Gracey, Jessica E Fish, Eve Greenfield, Andrew Bateman, Donna Malley, Gemma Hardy, Jessica Ingham, Jonathan J Evans, Tom Manly
BACKGROUND: Acquired brain injury (ABI) can impair executive function, impeding planning and attainment of intentions. Research shows promise for some goal-management rehabilitation interventions. However, evidence that alerts assist monitoring and completion of day-to-day intentions is limited. OBJECTIVE: To examine the efficacy of brief goal-directed rehabilitation paired with periodic SMS text messages designed to enhance executive monitoring of intentions (assisted intention monitoring [AIM])...
December 2, 2016: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/27909071/does-task-specific-training-improve-upper-limb-performance-in-daily-life-poststroke
#6
Kimberly J Waddell, Michael J Strube, Ryan R Bailey, Joseph W Klaesner, Rebecca L Birkenmeier, Alexander W Dromerick, Catherine E Lang
Background A common assumption is that changes in upper limb (UL) capacity, or what an individual is capable of doing, translates to improved UL performance in daily life, or what an individual actually does. This assumption should be explicitly tested for individuals with UL paresis poststroke. Objective To examine changes in UL performance after an intensive, individualized, progressive, task-specific UL intervention for individuals at least 6 months poststroke. Methods Secondary analysis on 78 individuals with UL paresis who participated in a phase II, single-blind, randomized parallel dose-response trial...
December 1, 2016: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/27909072/the-mirror-illusion-increases-motor-cortex-excitability-in-children-with-and-without-hemiparesis
#7
Sebastian Grunt, Christopher J Newman, Stefanie Saxer, Maja Steinlin, Christian Weisstanner, Alain Kaelin-Lang
Background Mirror therapy provides a visual illusion of a normal moving limb by using the mirror reflection of the unaffected arm instead of viewing the paretic limb and is used in rehabilitation to improve hand function. Little is known about the mechanism underlying its effect in children with hemiparesis. Objective To investigate the effect of the mirror illusion (MI) on the excitability of the primary motor cortex (M1) in children and adolescents. Methods Twelve patients with hemiparesis (10-20 years) and 8 typically developing subjects (8-17 years) participated...
November 30, 2016: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/27899737/cognitive-training-in-parkinson-s-disease-a-theoretical-perspective
#8
REVIEW
Courtney C Walton, Sharon L Naismith, Amit Lampit, Loren Mowszowski, Simon J G Lewis
Cognitive impairment is now widely accepted as a fundamental aspect of Parkinson's disease (PD). Given the prevalence of cognitive impairment and the associated impact on well-being, evidence-based interventions are needed. However, while research is continually accumulating in order to better understand the pathology and trajectory of cognitive changes, treatment options lag behind. Nonpharmacological approaches are of particular interest in this group, given the typical polypharmacy already present in PD patients...
November 28, 2016: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/27885163/clinically-important-difference-of-the-arm-motor-ability-test-in-stroke-survivors
#9
George Fulk, Rebecca Martin, Stephen J Page
BACKGROUND: The Arm Motor Ability Test (AMAT) is used to assess and quantify upper-extremity (UE) functional limitation in stroke and other conditions. However, the AMAT score change indicative of important and clinically meaningful change has not been determined. OBJECTIVE: To determine the clinically important difference (CID) for the AMAT for individuals with stroke exhibiting mild to moderate hemiparesis. METHODS: A total of 146 chronic stroke survivors exhibiting stable, mild to moderate UE hemiparesis were administered the AMAT before and after interventions targeting their affected UEs...
November 23, 2016: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/27885162/contralesional-corticomotor-neurophysiology-in-hemiparetic-children-with-perinatal-stroke-developmental-plasticity-and-clinical-function
#10
Ephrem Zewdie, Omar Damji, Patrick Ciechanski, Trevor Seeger, Adam Kirton
Background Perinatal stroke causes most hemiparetic cerebral palsy. Ipsilateral connections from nonlesioned hemisphere to affected hand are common. The nonlesioned primary motor cortex (M1) determines function and is a potential therapeutic target but its neurophysiology is poorly understood. Objective We aimed to characterize the neurophysiological properties of the nonlesioned M1 in children with perinatal stroke and their relationship to clinical function. Methods Fifty-two participants with hemiparetic cerebral palsy and magnetic resonance imaging-confirmed perinatal stroke and 40 controls aged 8 to 18 years completed the same transcranial magnetic stimulation (TMS) protocol...
November 23, 2016: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/27885161/a-rehabilitation-internet-of-things-in-the-home-to-augment-motor-skills-and-exercise-training
#11
Bruce H Dobkin
Although motor learning theory has led to evidence-based practices, few trials have revealed the superiority of one theory-based therapy over another after stroke. Nor have improvements in skills been as clinically robust as one might hope. We review some possible explanations, then potential technology-enabled solutions. Over the Internet, the type, quantity, and quality of practice and exercise in the home and community can be monitored remotely and feedback provided to optimize training frequency, intensity, and progression at home...
November 23, 2016: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/27856938/does-corticospinal-tract-connectivity-influence-the-response-to-intensive-bimanual-therapy-in-children-with-unilateral-cerebral-palsy
#12
Ana R P Smorenburg, Andrew M Gordon, Hsing-Ching Kuo, Claudio L Ferre, Marina Brandao, Yannick Bleyenheuft, Jason B Carmel, Kathleen M Friel
Background Reorganization of the corticospinal tract (CST) can occur in unilateral spastic cerebral palsy (USCP). The affected hand can be controlled via (1) typical contralateral projections from the lesioned hemisphere, (2) ipsilateral projections from the nonlesioned hemisphere, and (3) a combination of contralateral and ipsilateral projections (ie, bilateral). Intensive bimanual therapy and constraint-induced movement therapy (CIMT) improve hand function of children with USCP. Earlier it was suggested that the CST connectivity pattern may influence the efficacy of CIMT...
November 17, 2016: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/27821673/effect-of-core-stability-training-on-trunk-function-standing-balance-and-mobility-in-stroke-patients-a-randomized-controlled-trial
#13
Koshiro Haruyama, Michiyuki Kawakami, Tomoyoshi Otsuka
Background Trunk function is important for standing balance, mobility, and functional outcome after stroke, but few studies have evaluated the effects of exercises aimed at improving core stability in stroke patients. Objective To investigate the effectiveness of core stability training on trunk function, standing balance, and mobility in stroke patients. Methods An assessor-blinded, randomized controlled trial was undertaken in a stroke rehabilitation ward, with 32 participants randomly assigned to an experimental group or a control group (n = 16 each)...
November 7, 2016: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/27794134/proactive-response-inhibition-and-subcortical-gray-matter-integrity-in-traumatic-brain-injury
#14
Lize Hermans, Kurt Beeckmans, Karla Michiels, Christophe Lafosse, Stefan Sunaert, James P Coxon, Stephan P Swinnen, Inge Leunissen
Background Traumatic brain injury (TBI) has been associated with impairments in inhibiting prepotent motor responses triggered by infrequent external signals (ie, reactive inhibition). It is unclear whether proactive preparation to inhibit upcoming responses is also affected (ie, proactive inhibition). Successful inhibition relies on frontosubcortical interactions; therefore, impairments might be linked with gray matter atrophy in subcortical structures. Objective We investigated reactive and proactive inhibition in TBI and control groups, and their relationship with subcortical gray matter...
October 27, 2016: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/27789762/motor-learning-in-stroke-trained-patients-are-not-equal-to-untrained-patients-with-less-impairment
#15
Robert M Hardwick, Vikram A Rajan, Amy J Bastian, John W Krakauer, Pablo A Celnik
BACKGROUND AND OBJECTIVE: Stroke rehabilitation assumes motor learning contributes to motor recovery, yet motor learning in stroke has received little systematic investigation. Here we aimed to illustrate that despite matching levels of performance on a task, a trained patient should not be considered equal to an untrained patient with less impairment. METHODS: We examined motor learning in healthy control participants and groups of stroke survivors with mild-to-moderate or moderate-to-severe motor impairment...
October 27, 2016: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/27798379/changes-in-structural-connectivity-following-a-cognitive-intervention-in-children-with-traumatic-brain-injury-a-pilot-study
#16
Weihong Yuan, Amery Treble-Barna, McKay M Sohlberg, Beth Harn, Shari L Wade
Objective Structural connectivity analysis based on graph theory and diffusion tensor imaging tractography is a novel method that quantifies the topological characteristics in the brain network. This study aimed to examine structural connectivity changes following the Attention Intervention and Management (AIM) program designed to improve attention and executive function (EF) in children with traumatic brain injury (TBI). Methods Seventeen children with complicated mild to severe TBI (13.66 ± 2.68 years; >12 months postinjury) completed magnetic resonance imaging (MRI) and neurobehavioral measures at time 1, 10 of whom completed AIM and assessment at time 2...
October 25, 2016: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/27798378/associations-between-foot-placement-asymmetries-and-metabolic-cost-of-transport-in-hemiparetic-gait
#17
James M Finley, Amy J Bastian
Stroke survivors often have a slow, asymmetric walking pattern. They also walk with a higher metabolic cost than healthy, age-matched controls. It is often assumed that spatial-temporal asymmetries contribute to the increased metabolic cost of walking poststroke. However, elucidating this relationship is made challenging because of the interdependence between spatial-temporal asymmetries, walking speed, and metabolic cost. Here, we address these potential confounds by measuring speed-dependent changes in metabolic cost and implementing a recently developed approach to dissociate spatial versus temporal contributions to asymmetry in a sample of stroke survivors...
October 20, 2016: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/27511048/small-world-characteristics-of-cortical-connectivity-changes-in-acute-stroke
#18
Pietro Caliandro, Fabrizio Vecchio, Francesca Miraglia, Giuseppe Reale, Giacomo Della Marca, Giuseppe La Torre, Giordano Lacidogna, Chiara Iacovelli, Luca Padua, Placido Bramanti, Paolo Maria Rossini
Background After cerebral ischemia, disruption and subsequent reorganization of functional connections occur both locally and remote to the lesion. Recently, complexity of brain connectivity has been described using graph theory, a mathematical approach that depicts important properties of complex systems by quantifying topologies of network representations. Functional and dynamic changes of brain connectivity can be reliably analyzed via electroencephalography (EEG) recordings even when they are not yet reflected in structural changes of connections...
January 2017: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/27511047/predicting-motor-sequence-learning-in-individuals-with-chronic-stroke
#19
Katie P Wadden, Kristopher De Asis, Cameron S Mang, Jason L Neva, Sue Peters, Bimal Lakhani, Lara A Boyd
BACKGROUND: Conventionally, change in motor performance is quantified with discrete measures of behavior taken pre- and postpractice. As a high degree of movement variability exists in motor performance after stroke, pre- and posttesting of motor skill may lack sensitivity to predict potential for motor recovery. OBJECTIVE: Evaluate the use of predictive models of motor learning based on individual performance curves and clinical characteristics of motor function in individuals with stroke...
January 2017: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/27506677/constraint-induced-aphasia-therapy-in-the-acute-stage-what-is-the-key-factor-for-efficacy-a-randomized-controlled-study
#20
Hartwig Woldag, Nancy Voigt, Maria Bley, Horst Hummelsheim
BACKGROUND: Constraint-induced aphasia therapy (CIAT) has proven effective in patients with subacute and chronic forms of aphasia. It has remained unclear, however, whether intensity of therapy or constraint is the relevant factor. Data about intensive speech and language therapy (SLT) are conflicting. OBJECTIVE: To identify the effective component of CIAT and assess the feasibility of SLT in the acute stage after stroke. METHOD: A total of 60 patients with aphasia (68...
January 2017: Neurorehabilitation and Neural Repair
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