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https://www.readbyqxmd.com/read/28227557/sudden-changes-in-walking-surface-compliance-evoke-contralateral-emg-in-a-hemiparetic-walker-a-case-study-of-inter-leg-coordination-after-neurological-injury
#1
Jeffrey Skidmore, Panagiotis Artemiadis, Jeffrey Skidmore, Panagiotis Artemiadis, Jeffrey Skidmore, Panagiotis Artemiadis
Gait impairment due to neurological disorders is a significant problem around the world. Despite the growing interest in using robotic devices for gait rehabilitation, their widespread use remains limited as there is no clear evidence that robot-assisted gait therapy is superior to traditional treadmill-based therapy. This work is a case study that focuses on investigating the existence of mechanisms of inter-leg coordination after neurological injury, and based on that, proposing novel methods for gait rehabilitation...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227358/a-view-invariant-gait-cycle-segmentation-for-ambient-monitoring
#2
Hao Wu, Beilei Xu, Himanshu Madhu, Jing Zhou, Hao Wu, Beilei Xu, Himanshu Madhu, Jing Zhou, Jing Zhou, Hao Wu, Beilei Xu, Himanshu Madhu
Gait analysis has many clinical applications in disease detection and treatment evaluation. Gait cycle segmentation is a critical component in gait analysis for timing the gait phases in evaluating many movement disorders. Computer vision techniques have been widely used in surveillance for security monitoring. They are nonintrusive and do not require cooperation from subjects. In this paper, we propose to leverage the videos from existing surveillance monitoring systems to provide long-term and ambient assessments of gait patterns from subjects' daily activity without the requirement of wearing a device...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226077/superficial-siderosis-of-the-central-nervous-system-is-a-rare-and-possibly-underdiagnosed-disorder
#3
Yara Dadalti Fragoso, Tarso Adoni, Joseph Bruno Bidin Brooks, Sidney Gomes, Marcus Vinicius Magno Goncalves, Cassio Lemos Jovem, Andre Palma da Cunha Matta, Joao Filipe Oliveira, Fabio Siquinelli, Carlos Bernardo Tauil, Guilherme Navarro Troiani, Paulo Roberto Wille
Methods: Series of cases collected from Brazilian centers. Results: We studied 13 cases of patients presenting with progressive histories of neurological dysfunction caused by SS-CNS. The most frequent clinical findings in these patients were progressive gait ataxia, hearing loss, hyperreflexia and cognitive dysfunction. The diagnoses of SS-CNS were made seven months to 30 years after the disease onset. Conclusion: SS-CNS is a rare disease that may remain undiagnosed for long periods...
February 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/28222810/does-nordic-walking-restore-the-temporal-organization-of-gait-variability-in-parkinson-s-disease
#4
Thibault Warlop, Christine Detrembleur, Maïté Buxes Lopez, Gaëtan Stoquart, Thierry Lejeune, Anne Jeanjean
BACKGROUND: Gait disorders of Parkinson's disease (PD) are characterized by the breakdown of the temporal organization of stride duration variability that was tightly associated to dynamic instability in PD. Activating the upper body during walking, Nordic Walking (NW) may be used as an external cueing to improve spatiotemporal parameters of gait, such as stride length or gait variability, in PD. The aim of this study was to evaluate the beneficial effects of NW on temporal organization of gait variability and spatiotemporal gait variables in PD...
February 21, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28222369/what-can-gait-tell-us-about-dementia-review-of-epidemiological-and-neuropsychological-evidence
#5
REVIEW
Vyara Valkanova, Klaus P Ebmeier
BACKGROUND: Cognitive impairment and gait disorders in people over the age of 65 represent major public health issues because of their high frequency, their link to poor outcomes and high costs. Research has demonstrated that these two geriatric syndromes are closely related. METHODS AND RESULTS: We aim to review the evidence supporting the relationship between gait and cognitive impairment, particularly focusing on epidemiological and neuropsychological studies in patients with Mild cognitive impairment, Alzheimer's disease and Vascular dementia...
February 9, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28221333/idiopathic-bilateral-profound-hypotony-in-an-unknown-progressive-neurodegenerative-disorder
#6
Lorraine M Provencher, Pamela C Carter, Wallace L M Alward
PURPOSE: To present a unique case of idiopathic bilateral hypotony in a patient with progressive, undiagnosed neurological decline, possibly due to mitochondrial disease, and to explore mechanisms of disease and potential treatment options. METHODS: This is a case report. PATIENT: A 17-year-old boy with a history of chronic progressive bilateral vision loss and hypotony in the setting of progressive gait abnormalities, lower extremity spasticity, nystagmus, and urinary retention starting around age 8...
February 17, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28221268/moyamoya-syndrome-associated-with-hereditary-spherocytosis-an-emerging-clinical-entity
#7
Eleanor Gait-Carr, Daniel J A Connolly, David King
Moyamoya syndrome is an unusual cerebrovascular disorder, which has rarely been reported in association with hereditary spherocytosis. We present the case of a 6-year-old boy with hereditary spherocytosis who was diagnosed with Moyamoya syndrome following a stroke. We discuss why these conditions may coexist and briefly outline the management of such children.
February 17, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28220573/a-comparison-of-two-types-of-ankle-supports-in-men-with-haemophilia-and-unilateral-ankle-pain-from-arthropathy
#8
D Oleson, L Fox, T Nguyen, P Sochacki, M McCarthy, E Adams, M Recht
INTRODUCTION: Adults with haemophilia frequently have a painful and disordered gait due to ankle arthropathy. AIM: The aim of this study was to determine if pain and gait parameters were affected by the use of different types of ankle bracing. METHODS: We investigated the gait patterns of 17 men with severe haemophilia without bracing, using a fracture boot (FB) and a carbon fibre floor reaction ankle foot orthosis (CF-AFO). Pain relief was determined in each condition...
February 20, 2017: Haemophilia: the Official Journal of the World Federation of Hemophilia
https://www.readbyqxmd.com/read/28218343/immediate-affective-responses-of-gait-training-in-neurological-rehabilitation-a-randomized-crossover-trial
#9
Martin Niedermeier, Larissa Ledochowski, Andreas Mayr, Leopold Saltuari, Martin Kopp
OBJECTIVE: To examine the immediate effects of physical therapy and robotic-assisted gait training on affective responses of gait training in neurological rehabilitation. DESIGN: Randomized crossover trial with blinded observers. PATIENTS: Sixteen patients with neurological disorders (stroke, traumatic brain injury, spinal cord injury, multiple sclerosis). METHODS: All patients underwent 2 single treatment sessions: physical therapy and robotic-assisted gait training...
February 16, 2017: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28213665/neurologic-manifestations-of-vitamin-b-deficiency-after-bariatric-surgery
#10
Suriya Punchai, Zubaidah Nor Hanipah, Katherine M Meister, Philip R Schauer, Stacy A Brethauer, Ali Aminian
INTRODUCTION: The aim of this study was to assess the incidence, clinical presentation, and outcomes of neurologic disorders secondary to vitamin B deficiencies following bariatric surgery. METHODS: Patients at a single academic institution who underwent bariatric surgery and developed neurologic complications secondary to low levels of vitamins B1, B2, B6, and B12 between the years 2004 and 2015 were studied. RESULTS: In total, 47 (0.7%) bariatric surgical patients (Roux-en-Y gastric bypass n = 36, sleeve gastrectomy n = 9, and duodenal switch n = 2) developed neurologic manifestations secondary to vitamin B deficiencies...
February 17, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28212832/motor-dysfunction-and-alterations-in-glutathione-concentration-cholinesterase-activity-and-bdnf-expression-in-substantia-nigra-pars-compacta-in-rats-with-pedunculopontine-lesion
#11
Lisette Blanco-Lezcano, Javier Jimenez-Martin, Mei-Li Díaz-Hung, Esteban Alberti-Amador, Maylin Wong-Guerra, Ma Elena González-Fraguela, Bárbara Estupiñán-Díaz, Teresa Serrano-Sánchez, Liliana Francis-Turner, Susana Delgado-Ocaña, Yanier Núñez-Figueredo, Yamilé Vega-Hurtado, Isabel Fernández-Jiménez
Pedunculopontine nucleus (PPN) has been considered a critically important region in the regulation of some of the physiological functions that fail during the progression of Parkinson's disease (PD). In this paper, the effects of unilateral neurotoxic lesion of the PPN [through the injection of N-methyl-D-aspartate (NMDA) solution (concentration: 0.1 M; volume: 0.5 µL)] in motor execution and gait disorders and the changes in cellular and molecular indicators in rat nigral tissue were evaluated. The motor execution was assessed using the beam test (BT) and the gait disorders by footprint test...
February 14, 2017: Neuroscience
https://www.readbyqxmd.com/read/28208707/gaitkeeper-a-system-for-measuring-canine-gait
#12
Cassim Ladha, Jack O'Sullivan, Zoe Belshaw, Lucy Asher
It is understood gait has the potential to be used as a window into neurodegenerative disorders, identify markers of subclinical pathology, inform diagnostic algorithms of disease progression and measure the efficacy of interventions. Dogs' gaits are frequently assessed in a veterinary setting to detect signs of lameness. Despite this, a reliable, affordable and objective method to assess lameness in dogs is lacking. Most described canine lameness assessments are subjective, unvalidated and at high risk of bias...
February 8, 2017: Sensors
https://www.readbyqxmd.com/read/28197085/anodal-transcranial-direct-current-stimulation-does-not-facilitate-dynamic-balance-task-learning-in-healthy-old-adults
#13
Elisabeth Kaminski, Maike Hoff, Viola Rjosk, Christopher J Steele, Christopher Gundlach, Bernhard Sehm, Arno Villringer, Patrick Ragert
Older adults frequently experience a decrease in balance control that leads to increased numbers of falls, injuries and hospitalization. Therefore, evaluating older adults' ability to maintain balance and examining new approaches to counteract age-related decline in balance control is of great importance for fall prevention and healthy aging. Non-invasive brain stimulation techniques such as transcranial direct current stimulation (tDCS) have been shown to beneficially influence motor behavior and motor learning...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28196453/near-infrared-spectroscopy-in-gait-disorders
#14
Vera Gramigna, Giovanni Pellegrino, Antonio Cerasa, Simone Cutini, Roberta Vasta, Giuseppe Olivadese, Iolanda Martino, Aldo Quattrone
Walking is a complex motor behavior with a special relevance in clinical neurology. Many neurological diseases, such as Parkinson's disease and stroke, are characterized by gait disorders whose neurofunctional correlates are poorly investigated. Indeed, the analysis of real walking with the standard neuroimaging techniques poses strong challenges, and only a few studies on motor imagery or walking observation have been performed so far. Functional near-infrared spectroscopy (fNIRS) is becoming an important research tool to assess functional activity in neurological populations or for special tasks, such as walking, because it allows investigating brain hemodynamic activity in an ecological setting, without strong immobility constraints...
January 1, 2017: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/28195407/a-pilot-trial-of-square-biphasic-pulse-deep-brain-stimulation-for-dystonia-the-bip-dystonia-study
#15
Leonardo Almeida, Daniel Martinez-Ramirez, Bilal Ahmed, Wissam Deeb, Sol De Jesus, Jared Skinner, Matthew J Terza, Umer Akbar, Robert S Raike, Chris J Hass, Michael S Okun
BACKGROUND: Dystonia often has inconsistent benefits and requires more energy-demanding DBS settings. Studies suggest that squared biphasic pulses could provide significant clinical benefit; however, dystonia patients have not been explored. OBJECTIVES: To assess safety and tolerability of square biphasic DBS in dystonia patients. METHODS: This study included primary generalized or cervical dystonia patients with bilateral GPi DBS. Square biphasic pulses were implemented and patients were assessed at baseline, immediately postwashout, post-30-minute washout, 1 hour post- and 2 hours postinitiation of investigational settings...
February 13, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28187888/a-survey-of-nature-inspired-algorithms-for-feature-selection-to-identify-parkinson-s-disease
#16
Prashant Shrivastava, Anupam Shukla, Praneeth Vepakomma, Neera Bhansali, Kshitij Verma
BACKGROUND AND OBJECTIVES: Parkinson's disease is a chronic neurological disorder that directly affects human gait. It leads to slowness of movement, causes muscle rigidity and tremors. Analyzing human gait serves to be useful in studies aiming at early recognition of the disease. In this paper we perform a comparative analysis of various nature inspired algorithms to select optimal features/variables required for aiding in the classification of affected patients from the rest. METHODS: For the experiments, we use a real life dataset of 166 people containing both healthy controls and affected people...
February 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28184173/reliability-of-inertial-sensors-in-the-assessment-of-patients-with-vestibular-disorders-a-feasibility-study
#17
Sathish K Sankarpandi, Alice J Baldwin, Jaydip Ray, Claudia Mazzà
BACKGROUND: Vestibular disorders affect an individual's stability, balance, and gait and predispose them to falls. Traditional laboratory-based semi-objective vestibular assessments are intrusive and cumbersome provide little information about their functional ability. Commercially available wearable inertial sensors allow us to make this real life assessments objective, with a detailed view of their functional abilities. Timed Up and Go (TUG) and Postural Sway tests are commonly used tests for gait and balance assessments...
2017: BMC Ear, Nose, and Throat Disorders
https://www.readbyqxmd.com/read/28177096/-severe-multifactorial-hyponatremia
#18
Massimo Manes, Elisabetta Radin, Valentina Pellù, Donatella Caputo, Danila Gabrielli, Andrea Molino, Giuseppe Paternoster, Emanuele Parodi, Pier Eugenio Nebiolo
Hyponatremia is the most common electrolyte disorder observed in hospitalized patients. The most severe forms are neurological and potentially fatal emergencies; yet increased morbidity, length of hospital stay and costs associated with less severe forms are aspects of major concern. Nephrologists are frequently consulted regarding the therapeutic management and the key pathophysiological issues of hyponatremia, as this latter aspect represents a true challenge in an emergency setting. We report a case of a woman admitted to the emergency room for gait instability caused by a very severe multifactorial hyponatremia with a favourable clinical outcome...
January 2017: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/28176975/familial-aggregation-of-the-cerebellar-signs-in-familial-essential-tremor
#19
Elan D Louis, Nora Hernandez, Karen P Chen, Kelly V Naranjo, Jemin Park, Lorraine N Clark, Ruth Ottman
BACKGROUND: Although the hallmark feature of essential tremor (ET) is kinetic tremor, patients may exhibit additional motor features (e.g., intention tremor and mild gait ataxia) that are markers of an underlying abnormality of cerebellar function. ET is also a highly familial disorder, but we do not know whether the presence and expression of cerebellar signs are similar across family members. There are simply no published data. The alternative possibility is that these features are not heritable...
2017: Tremor and Other Hyperkinetic Movements
https://www.readbyqxmd.com/read/28168099/gait-disorder-as-a-predictor-of-spatial-learning-and-memory-impairment-in-aged-mice
#20
Xin Wang, Qing M Wang, Zhaoxiang Meng, Zhenglu Yin, Xun Luo, Duonan Yu
OBJECTIVE: To investigate whether gait dysfunction is a predictor of severe spatial learning and memory impairment in aged mice. METHODS: A total of 100 12-month-old male mice that had no obvious abnormal motor ability and whose Morris water maze performances were not significantly different from those of two-month-old male mice were selected for the study. The selected aged mice were then divided into abnormal or normal gait groups according to the results from the quantitative gait assessment...
2017: PeerJ
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