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https://www.readbyqxmd.com/read/28813881/simulation-of-variable-impedance-as-an-intervention-for-upper-extremity-motor-exploration
#1
Felix C Huang
Current methods in robot-assisted therapy are limited in providing predictions of the effectiveness of interventions. Our approach focuses on how robotic interaction can impact the distribution of movements expressed in the arm. Using data from a previous study with stroke survivors (n=10), we performed simulations to examine how changes in hand endpoint impedance would alter exploratory motion. We present methods for designing a custom training intervention, by relating the desired change in acceleration covariance in planar motion with a corresponding change in inertia matrix...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28809057/understanding-frames-a-uk-survey-of-parents-and-professionals-regarding-the-use-of-standing-frames-for-children-with-cerebral-palsy
#2
J Goodwin, A Colver, A Basu, S Crombie, D Howel, J R Parr, E McColl, N Kolehmainen, A Roberts, J Lecouturier, J Smith, K Miller, J Cadwgan
BACKGROUND: Standing frames are used for children with cerebral palsy (CP). They may improve body structure and function (e.g., reducing risk of hip subluxation, and improving bladder and bowel function), improving activity (e.g., motor abilities) and participation (e.g., interaction with peers), but there is little evidence that they do. We aimed to identify current UK standing frame practice for children with CP and to understand stakeholder views regarding their clinical benefits and challenges to use...
August 15, 2017: Child: Care, Health and Development
https://www.readbyqxmd.com/read/28800631/lack-of-spacing-effects-during-piano-learning
#3
Melody Wiseheart, Annalise A D'Souza, Jacey Chae
Spacing effects during retention of verbal information are easily obtained, and the effect size is large. Relatively little evidence exists on whether motor skill retention benefits from distributed practice, with even less evidence on complex motor skills. We taught a 17-note musical sequence on a piano to individuals without prior formal training. There were five lags between learning episodes: 0-, 1-, 5-, 10-, and 15-min. After a 5-min retention interval, participants' performance was measured using three criteria: accuracy of note playing, consistency in pressure applied to the keys, and consistency in timing...
2017: PloS One
https://www.readbyqxmd.com/read/28744231/understanding-and-modeling-teams-as-dynamical-systems
#4
REVIEW
Jamie C Gorman, Terri A Dunbar, David Grimm, Christina L Gipson
By its very nature, much of teamwork is distributed across, and not stored within, interdependent people working toward a common goal. In this light, we advocate a systems perspective on teamwork that is based on general coordination principles that are not limited to cognitive, motor, and physiological levels of explanation within the individual. In this article, we present a framework for understanding and modeling teams as dynamical systems and review our empirical findings on teams as dynamical systems...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28731841/survey-of-nutrition-management-practices-in-centers-for-pediatric-intestinal-rehabilitation
#5
Anita M Nucci, Kipp Ellsworth, Austin Michalski, Emily Nagel, Jackie Wessel
BACKGROUND: Nutrition management of pediatric intestinal failure (IF) requires interdisciplinary coordination of parenteral nutrition (PN) and enteral nutrition (EN) support. Nutrition strategies used by specialists in pediatric intestinal rehabilitation to promote gut adaptation and manage complications have not been previously summarized. METHODS: A practice survey was distributed to members of the dietitian subgroup of the American Society for Parenteral and Enteral Nutrition Pediatric Intestinal Failure Section...
July 1, 2017: Nutrition in Clinical Practice
https://www.readbyqxmd.com/read/28674847/a-new-integrated-dual-time-point-amyloid-pet-mri-data-analysis-method
#6
Diego Cecchin, Henryk Barthel, Davide Poggiali, Annachiara Cagnin, Solveig Tiepolt, Pietro Zucchetta, Paolo Turco, Paolo Gallo, Anna Chiara Frigo, Osama Sabri, Franco Bui
PURPOSE: In the initial evaluation of patients with suspected dementia and Alzheimer's disease, there is no consensus on how to perform semiquantification of amyloid in such a way that it: (1) facilitates visual qualitative interpretation, (2) takes the kinetic behaviour of the tracer into consideration particularly with regard to at least partially correcting for blood flow dependence, (3) analyses the amyloid load based on accurate parcellation of cortical and subcortical areas, (4) includes partial volume effect correction (PVEC), (5) includes MRI-derived topographical indexes, (6) enables application to PET/MRI images and PET/CT images with separately acquired MR images, and (7) allows automation...
July 4, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28661018/clinical-characterization-of-dystonia-in-adult-patients-with-huntington-s-disease
#7
N A van de Zande, T H Massey, D McLauchlan, A Pryce Roberts, R Zutt, M Wardle, G C Payne, C Clenaghan, M A J Tijssen, A E Rosser, K J Peall
BACKGROUND AND PURPOSE: Huntington's disease (HD) is an autosomal dominant, neurodegenerative movement disorder, typically characterized by chorea. Dystonia is also recognized as part of the HD motor phenotype, although little work detailing its prevalence, distribution, severity and impact on functional capacity has been published to date. METHODS: Patients (>18 years of age) were recruited from the Cardiff (UK) HD clinic, each undergoing a standardized videotaped clinical examination and series of functional assessment questionnaires (Unified Huntington's Disease Rating Scale, Burke-Fahn-Marsden Dystonia Rating Scale and modified version of the Toronto Western Spasmodic Torticollis Rating Scale)...
June 29, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28619653/on-optimal-spatial-filtering-for-the-detection-of-phase-coupling-in-multivariate-neural-recordings
#8
G Waterstraat, G Curio, V V Nikulin
INTRODUCTION: Neuronal oscillations synchronize processing in the brain over large spatiotemporal scales and thereby facilitate integration of individual functional modules. Up to now, the relation between the phases of neuronal oscillations and behavior or perception has mainly been analyzed in sensor space of multivariate EEG/MEG recordings. However, sensor-space analysis distorts the topographies of the underlying neuronal sources and suffers from low signal-to-noise ratio. Instead, we propose an optimized source reconstruction approach (Phase Coupling Optimization, PCO)...
June 13, 2017: NeuroImage
https://www.readbyqxmd.com/read/28511128/improving-the-repeatability-of-motor-unit-number-index-munix-by-introducing-additional-epochs-at-low-contraction-levels
#9
Yun Peng, Yingchun Zhang
OBJECTIVE: To evaluate the repeatability of (Motor Unit Number Index) MUNIX under repeatability conditions, specify the origin of variations and provide strategies for quality control. METHODS: MUNIX calculations were performed on the bicep brachii muscles of eight healthy subjects. Negative effect of suboptimal electrode positions on MUNIX accuracy was eliminated by employing the high-density surface electromyography technique. MUNIX procedures that utilized a variety of surface interferential pattern (SIP) epoch recruitment strategies (including the original MUNIX procedure, two proposed improvement strategies and their combinations) were described...
July 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28481192/assessing-postural-balance-in-early-parkinson-s-disease-validity-of-the-bdl-balance-scale
#10
Ingrid M Claesson, Wilhelmus Ja Grooten, Johan Lökk, Agneta Ståhle
BACKGROUND: There is a need for a valid assessment test of balance in early Parkinson's disease (PD). OBJECTIVE: To validate the Bäckstrand Dahlberg Liljenäs Balance Scale (BDL), a test of balance performance constructed to assess mild to moderate balance disability due to neurological disease, for use in persons with early PD. METHODS: Cross-sectional psychometric evaluation study from a convenience sample community-dwelling persons with PD (n = 28)...
May 8, 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/28461068/coil-optimisation-for-transcranial-magnetic-stimulation-in-realistic-head-geometry
#11
Lari M Koponen, Jaakko O Nieminen, Tuomas P Mutanen, Matti Stenroos, Risto J Ilmoniemi
BACKGROUND: Transcranial magnetic stimulation (TMS) allows focal, non-invasive stimulation of the cortex. A TMS pulse is inherently weakly coupled to the cortex; thus, magnetic stimulation requires both high current and high voltage to reach sufficient intensity. These requirements limit, for example, the maximum repetition rate and the maximum number of consecutive pulses with the same coil due to the rise of its temperature. OBJECTIVE: To develop methods to optimise, design, and manufacture energy-efficient TMS coils in realistic head geometry with an arbitrary overall coil shape...
July 2017: Brain Stimulation
https://www.readbyqxmd.com/read/28359713/child-passenger-safety-an-assessment-of-emergency-nurses-knowledge-and-provision-of-information-in-the-emergency-department
#12
Thelma C Kuska, Mark R Zonfrillo
Each year, more than 130,000 children younger than 13 years are treated in the emergency department after evaluation of injuries sustained from motor vehicle crashes (MVCs). Many of these injuries can be prevented with use of child restraints. In this study we sought to assess emergency nurses' knowledge of child passenger safety (CPS) and its use to keep children safe while traveling in motor vehicles. METHODS: A cross-sectional anonymous study was distributed electronically to 530 emergency nurses who were asked to forward the survey link to other emergency nurses through snowball sampling...
March 28, 2017: Journal of Emergency Nursing: JEN: Official Publication of the Emergency Department Nurses Association
https://www.readbyqxmd.com/read/28276586/the-eating-and-drinking-ability-classification-system-in-a-population-based-sample-of-preschool-children-with-cerebral-palsy
#13
Katherine A Benfer, Kelly A Weir, Kristie L Bell, Robert S Ware, Peter S W Davies, Roslyn N Boyd
AIM: To determine (1) the reproducibility of the Eating and Drinking Ability Classification System (EDACS); (2) EDACS classification distribution in a population-based cohort with cerebral palsy (CP); and (3) the relationships between the EDACS and clinical mealtime assessment, other classifications, and health outcomes. METHOD: This was a cross-sectional population-based cohort study of 170 children with CP at 3 years to 5 years (mean 57.6mo, standard deviation [SD] 8...
June 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28177571/optimizing-for-generalization-in-the-decoding-of-internally-generated-activity-in-the-hippocampus
#14
Matthijs A A van der Meer, Alyssa A Carey, Youki Tanaka
The decoding of a sensory or motor variable from neural activity benefits from a known ground truth against which decoding performance can be compared. In contrast, the decoding of covert, cognitive neural activity, such as occurs in memory recall or planning, typically cannot be compared to a known ground truth. As a result, it is unclear how decoders of such internally generated activity should be configured in practice. We suggest that if the true code for covert activity is unknown, decoders should be optimized for generalization performance using cross-validation...
May 2017: Hippocampus
https://www.readbyqxmd.com/read/28100095/shoulder-kinetics-during-start-up-and-propulsion-with-a-manual-wheelchair-within-the-initial-phase-of-uninstructed-training
#15
Samuel Hybois, Alice Siegel, Joseph Bascou, Nicolas Eydieux, Philippe Vaslin, Hélène Pillet, Pascale Fodé, Christophe Sauret
PURPOSE: Wheelchair locomotion is constraining for the upper limbs and involves a set of motor tasks that need to be learnt by a novice user. To understand this integration process, we investigated the evolution of shoulder kinetics during start-up and propulsion within the initial phase of low-intensity uninstructed training. MATERIALS AND METHODS: Seventeen novice able-bodied subjects performed a 120-min uninstructed practice distributed over 4 weeks. During the initial and final sessions, upper limbs kinematics and hand-rim kinetics were continuously collected...
January 19, 2017: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/28048257/th-c-brb-01-open-source-hardware-general-overview
#16
F Therriault-Proulx
By definition, Open Source Hardware (OSH) is "hardware whose design is made publicly available so that anyone can study, modify, distribute, make, and sell the design or hardware based on that design". The advantages of OSH are multiple and the movement has been growing exponentially over the last couple years, leading to the spread and evolution of 3D printing technologies, the creation of affordable and easy to use micro-controller boards (Arduino, Raspberry Pi, etc.), as well as a plurality of other "hands-on"/DIY projects...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047610/th-c-brb-02-open-source-medical-devices-lessons-learned-from-a-complex-collaborative-research-project
#17
S Prajapati
By definition, Open Source Hardware (OSH) is "hardware whose design is made publicly available so that anyone can study, modify, distribute, make, and sell the design or hardware based on that design". The advantages of OSH are multiple and the movement has been growing exponentially over the last couple years, leading to the spread and evolution of 3D printing technologies, the creation of affordable and easy to use micro-controller boards (Arduino, Raspberry Pi, etc.), as well as a plurality of other "hands-on"/DIY projects...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047153/th-c-brb-00-open-source-hardware-in-medical-physics-and-its-potential-to-accelerate-innovation
#18
Francois Therriault-Proulx
By definition, Open Source Hardware (OSH) is "hardware whose design is made publicly available so that anyone can study, modify, distribute, make, and sell the design or hardware based on that design". The advantages of OSH are multiple and the movement has been growing exponentially over the last couple years, leading to the spread and evolution of 3D printing technologies, the creation of affordable and easy to use micro-controller boards (Arduino, Raspberry Pi, etc.), as well as a plurality of other "hands-on"/DIY projects...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046962/th-c-brb-03-open-source-hardware-in-the-context-of-simple-and-widely-shared-clinical-applications
#19
J Cunha
By definition, Open Source Hardware (OSH) is "hardware whose design is made publicly available so that anyone can study, modify, distribute, make, and sell the design or hardware based on that design". The advantages of OSH are multiple and the movement has been growing exponentially over the last couple years, leading to the spread and evolution of 3D printing technologies, the creation of affordable and easy to use micro-controller boards (Arduino, Raspberry Pi, etc.), as well as a plurality of other "hands-on"/DIY projects...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/27920096/structural-pathways-supporting-swift-acquisition-of-new-visuomotor-skills
#20
Ari E Kahn, Marcelo G Mattar, Jean M Vettel, Nicholas F Wymbs, Scott T Grafton, Danielle S Bassett
Human skill learning requires fine-scale coordination of distributed networks of brain regions linked by white matter tracts to allow for effective information transmission. Yet how individual differences in these anatomical pathways may impact individual differences in learning remains far from understood. Here, we test the hypothesis that individual differences in structural organization of networks supporting task performance predict individual differences in the rate at which humans learn a visuomotor skill...
January 1, 2017: Cerebral Cortex
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