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https://www.readbyqxmd.com/read/29778064/is-the-limit-cycle-attractor-an-almost-invariable-characteristic-in-human-walking
#1
Kim-Charline Broscheid, Christian Dettmers, Manfred Vieten
BACKGROUND: Common methods of gait analyses measure step length/width, gait velocity and gait variability to name just a few. Those parameters tend to be changing with fitness and skill of the subjects. But, do stable subject characteristic parameters in walking exist? Does the Limit-Cycle-Attractor qualify as such a parameter?. RESEARCH QUESTION: The attractor method is a new approach focusing on the dynamics of human motion. It classifies the fundamental walking pattern by calculating the Limit-Cycle-Attractor and its variability from acceleration data of the feet...
May 16, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29778029/late-onset-childhood-neuronal-ceroid-lipofuscinosis-early-clinical-and-electroencephalographic-markers
#2
Lucas Beltrán, Gabriela Reyes Valenzuela, Mariana Loos, Rodrigo Vargas, Rafael Lizama, Pablo Spinsanti, Roberto Caraballo
PURPOSE: The objective of the study was to describe the initial clinical and electroencephalographic findings in children with late-infantile neuronal ceroid lipofuscinosis (LINCL). METHOD: The clinical charts of 35 patients seen between 1990 and 2016 were reviewed. The patients were divided into two groups: Group 1 (G1) consisting of 12 patients with NCL type 2 (CLN2) disease confirmed by enzymatic activity in dried blood spots on filter paper and/or genetic studies, and Group 2 (G2) consisting of 23 patients with a diagnosis of LINCL based on pathology studies by muscle biopsy...
May 15, 2018: Epilepsy Research
https://www.readbyqxmd.com/read/29777722/ca-2-signaling-and-spinocerebellar-ataxia
#3
REVIEW
Chihiro Hisatsune, Kozo Hamada, Katsuhiko Mikoshiba
Spinocerebellar ataxia (SCA) is a neural disorder, which is caused by degenerative changes in the cerebellum. SCA is primarily characterized by gait ataxia, and additional clinical features include nystagmus, dysarthria, tremors and cerebellar atrophy. Forty-four hereditary SCAs have been identified to date, along with >35 SCA-associated genes. Despite the great diversity and distinct functionalities of the SCA-related genes, accumulating evidence supports the occurrence of a common pathophysiological event among several hereditary SCAs...
May 16, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29776864/putaminal-dopamine-depletion-in-de-novo-parkinson-s-disease-predicts-future-development-of-wearing-off
#4
Su Jin Chung, Yoonju Lee, Jungsu S Oh, Jae Seung Kim, Phil Hyu Lee, Young H Sohn
INTRODUCTION: The present study aimed to investigate whether the level of presynaptic dopamine neuronal loss predicts future development of wearing-off in de novo Parkinson's disease. METHODS: This retrospective cohort study included a total of 342 non-demented patients with de novo Parkinson's disease who underwent dopamine transporter positron emission tomography scans at their initial evaluation and received dopaminergic medications for 24 months or longer. Onset of wearing-off was determined based on patients' medical records at their outpatient clinic visits every 3-6 months...
May 10, 2018: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29774001/cognitive-motor-interference-in-an-ecologically-valid-street-crossing-scenario
#5
Christin Janouch, Uwe Drescher, Konstantin Wechsler, Mathias Haeger, Otmar Bock, Claudia Voelcker-Rehage
Laboratory-based research revealed that gait involves higher cognitive processes, leading to performance impairments when executed with a concurrent loading task. Deficits are especially pronounced in older adults. Theoretical approaches like the multiple resource model highlight the role of task similarity and associated attention distribution problems. It has been shown that in cases where these distribution problems are perceived relevant to participant's risk of falls, older adults prioritize gait and posture over the concurrent loading task...
2018: Frontiers in Psychology
https://www.readbyqxmd.com/read/29773683/adaptive-control-of-dynamic-balance-in-human-gait-on-a-split-belt-treadmill
#6
Tom J W Buurke, Claudine J C Lamoth, Danique Vervoort, Lucas H V van der Woude, Rob den Otter
Human bipedal gait is inherently unstable and staying upright requires adaptive control of dynamic balance. Little is known about adaptive control of dynamic balance in reaction to long-term, continuous perturbations. We examined how dynamic balance control adapts to a continuous perturbation in gait, by letting people walk faster with one leg than the other on a treadmill with two belts (i.e. split-belt walking). In addition, we assessed whether changes in mediolateral dynamic balance control coincide with changes in energy use during split-belt adaptation...
May 17, 2018: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29765872/effect-of-caregiver-driven-robot-assisted-in-ward-training-in-subacute-stroke-patients-a-case-series
#7
Sang Beom Kim, Kyeong Woo Lee, Jong Hwa Lee, Sook Joung Lee, Jin Gee Park, Joo Won Park
Objective: To evaluate the effect of caregiver driven robot-assisted in-ward training in subacute stroke patients. Methods: A retrospective evaluation was performed for patients treated with caregiver driven robot-assisted in-ward training to retain gait function from June 2014 and December 2016. All patients received more than 2 weeks of caregiver driven robot-assisted in-ward training after undergoing conventional programs. The robot was used as a sitting device, a standing frame, or a high-walker depending on functional status of the patient...
April 2018: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/29761054/is-high-intensity-interval-cycling-feasible-and-more-beneficial-than-continuous-cycling-for-knee-osteoarthritic-patients-results-of-a-randomised-control-feasibility-trial
#8
Justin W Keogh, Josephine Grigg, Christopher J Vertullo
Background: Knee osteoarthritis (OA) patients often suffer joint pain and stiffness, which contributes to negative changes in body composition, strength, physical performance (function), physical activity and health-related quality of life. To reduce these symptoms and side effects of knee OA, moderate-intensity continuous training (MICT) cycling is often recommended. While resistance training is considered the optimal form of training to improve sarcopenic outcomes, it imposes higher joint loads and requires supervision, either initially or continuously by trained exercise professionals...
2018: PeerJ
https://www.readbyqxmd.com/read/29755513/motor-imagery-during-action-observation-of-locomotor-tasks-improves-rehabilitation-outcome-in-older-adults-after-total-hip-arthroplasty
#9
Uros Marusic, Sidney Grosprêtre, Armin Paravlic, Simon Kovač, Rado Pišot, Wolfgang Taube
This study aimed at determining whether the combination of action observation and motor imagery (AO + MI) of locomotor tasks could positively affect rehabilitation outcome after hip replacement surgery. Of initially 405 screened participants, 21 were randomly split into intervention group ( N = 10; mean age = 64 y; AO + MI of locomotor tasks: 30 min/day in the hospital, then 3×/week in their homes for two months) and control group ( N = 11, mean age = 63 y, active controls). The functional outcomes (Timed Up and Go, TUG; Four Step Square Test, FSST; and single- and dual-task gait and postural control) were measured before (PRE) and 2 months after surgery (POST)...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29752826/post-polio-syndrome-and-the-late-effects-of-poliomyelitis-part-2-treatment-management-and-prognosis
#10
REVIEW
Julian K Lo, Lawrence R Robinson
Post-Polio Syndrome (PPS) is characterized by new muscle weakness and/or muscle fatigability that occurs many years following the initial poliomyelitis illness. An individualized approach to rehabilitation management is critical. Interventions may include rehabilitation management strategies, adaptive equipment, orthotic equipment, gait/mobility aids and a variety of therapeutic exercises. The progression of muscle weakness in PPS is typically slow and gradual; however, there is also variability in both the natural history of weakness and functional prognosis...
May 12, 2018: Muscle & Nerve
https://www.readbyqxmd.com/read/29752608/author-correction-reliability-and-feasibility-of-gait-initiation-centre-of-pressure-excursions-using-a-wii-%C3%A2-balance-board-in-older-adults-at-risk-of-falling
#11
James Lee, Graham Webb, Adam P Shortland, Rebecca Edwards, Charlotte Wilce, Gareth D Jones
In the original publication, the article title was incorrectly published as 'Reliability and feasibility of gait initiation centre-of-pressure excursions using a Wii® Balance Board in older adults at risk of failing'. The correct title should read as 'Reliability and feasibility of gait initiation centre-of-pressure excursions using a Wii® Balance Board in older adults at risk of falling'.
May 12, 2018: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/29740058/model-based-and-model-free-machine-learning-techniques-for-diagnostic-prediction-and-classification-of-clinical-outcomes-in-parkinson-s-disease
#12
Chao Gao, Hanbo Sun, Tuo Wang, Ming Tang, Nicolaas I Bohnen, Martijn L T M Müller, Talia Herman, Nir Giladi, Alexandr Kalinin, Cathie Spino, William Dauer, Jeffrey M Hausdorff, Ivo D Dinov
In this study, we apply a multidisciplinary approach to investigate falls in PD patients using clinical, demographic and neuroimaging data from two independent initiatives (University of Michigan and Tel Aviv Sourasky Medical Center). Using machine learning techniques, we construct predictive models to discriminate fallers and non-fallers. Through controlled feature selection, we identified the most salient predictors of patient falls including gait speed, Hoehn and Yahr stage, postural instability and gait difficulty-related measurements...
May 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29737626/identification-of-spatiotemporal-gait-parameters-and-pressure-related-characteristics-in-children-with-angelman-syndrome-a-pilot-study
#13
Joseph C Grieco, Arnaud Gouelle, Edwin J Weeber
BACKGROUND: Angelman syndrome (AS) leads to clinical manifestations that include intellectual impairments, developmental delay and poor motor function. Initiatives to develop therapeutics implie an urgent need to identify methods that accurately measure the motor abilities. METHODS: Six children with AS (6 to 9 years old) walked on an instrumented walkway to get spatiotemporal parameters (STPs) and center of pressure (CoP). These outcomes were compared to typically developing children (TD): 44 TD 6 to 9 years old and 20 TD 4 to 5 years old...
May 8, 2018: Journal of Applied Research in Intellectual Disabilities: JARID
https://www.readbyqxmd.com/read/29736421/exquisite-response-to-intravenous-immunoglobulin-in-susac-syndrome-during-pregnancy
#14
Enrique Gomez-Figueroa, Sofia Garcia-Trejo, Raul Anwar Garcia-Santos, Gerardo Quiñones-Pesqueira, Juan Manuel Calleja-Castillo
Introduction: From its initial report on two female patients in 1979 by J.O. Susac, Susac syndrome (SuS) or SICRET (small infarctions of cochlear, retinal and encephalic tissue) has persisted as an elusive entity. To date the available evidence for its treatment is based on case reports and case series. The largest systematic review described only 304 reported cases since the 1970s. Here we presented the first reported case to our knowledge in Mexican population and the unusual presentation in a pregnant patient...
March 2018: ENeurologicalSci
https://www.readbyqxmd.com/read/29736264/clinical-management-of-friedreich-s-ataxia-a-report-of-two-cases
#15
Yannis Dionyssiotis, Athina Kapsokoulou, Anna Danopoulou, Maria Kokolaki, Athina Vadalouka
Introduction: Friedreich's ataxia (FDRA) is the most common autosomal recessive, early-onset ataxia. FDRA is a progressive neurodegenerative disease that mainly affects the posterior (dorsal) columns of the spinal cord resulting in sensory ataxia. It manifests in initial symptoms of poor coordination and gait disturbance. Case presentation: We present two cases, a brother (54 years old) and sister (56 years old), with FDRA that are chronically institutionalized for incomplete quadriplegia without spasticity...
2018: Spinal Cord Series and Cases
https://www.readbyqxmd.com/read/29734943/low-mood-visual-hallucinations-and-falls-heralding-the-onset-of-rapidly-progressive-probable-sporadic-creutzfeldt-jakob-disease-in-a-73-year-old-a-case-report
#16
Daniel Martin Klotz, Rose Sarah Penfold
BACKGROUND: Creutzfeldt-Jakob disease is a rare and rapidly fatal neurodegenerative disease. Since clinicians may see only very few cases during their professional career, it is important to be familiar with the clinical presentation and progression, to perform appropriate investigations, and allow for quick diagnosis. CASE PRESENTATION: A 73-year-old British Caucasian woman presented with acute confusion of 2 weeks' duration on a background of low mood following a recent bereavement...
May 8, 2018: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29734501/using-multidimensional-topological-data-analysis-to-identify-traits-of-hip-osteoarthritis
#17
Jasmine Rossi-deVries, Valentina Pedoia, Michael A Samaan, Adam R Ferguson, Richard B Souza, Sharmila Majumdar
BACKGROUND: Osteoarthritis (OA) is a multifaceted disease with many variables affecting diagnosis and progression. Topological data analysis (TDA) is a state-of-the-art big data analytics tool that can combine all variables into multidimensional space. TDA is used to simultaneously analyze imaging and gait analysis techniques. PURPOSE: To identify biochemical and biomechanical biomarkers able to classify different disease progression phenotypes in subjects with and without radiographic signs of hip OA...
May 7, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29730490/increased-double-limb-support-times-during-walking-in-right-limb-dominant-healthy-older-adults-with-low-bone-density
#18
Paul S Sung
BACKGROUND: Older adults with low bone mineral density (BMD) may exhibit early markers for physical frailty; however, there is a lack of understanding of the dominant limb support patterns during walking. RESEARCH QUESTION: The purpose of this study was to investigate limb support times during walking in healthy older adults with low BMD. METHODS: Seventy-seven right limb dominant older adults (48 female subjects, 29 male subjects) participated in the study...
April 25, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29729332/does-the-intensity-of-daily-walking-matter-for-protecting-against-the-development-of-a-slow-gait-speed-in-people-with-or-at-high-risk-of-knee-osteoarthritis-an-observational-study
#19
Sally Am Fenton, Tuhina Neogi, Dorothy Dunlop, Michael Nevitt, Michael Doherty, Joan L Duda, Rainer Klocke, Abhishek Abhishek, Alison Rushton, Weiya Zhang, Cora E Lewis, James Torner, George Kitas, Daniel K White
OBJECTIVE: Knee osteoarthritis (OA) is a risk factor for a decline in gait speed. Daily walking reduces the risk of developing slow gait speed and future persistent functional limitation. However, the protective role of walking intensity is unclear. We investigated the association of substituting time spent not walking, with walking at light and moderate-to-vigorous intensities for incident slow gait over two-years, among people with or at high risk of knee osteoarthritis (OA). METHOD: We used baseline and two-year follow-up data from the Multicenter Osteoarthritis (MOST) study (n=1731) and the Osteoarthritis Initiative (OAI, n=1925)...
May 2, 2018: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29727776/knee-adduction-moment-peak-and-impulse-do-not-change-during-the-first-six-months-of-walking-with-a-prosthesis
#20
Rebecca L Krupenevich, Ross H Miller, Brad D Hendershot, Barri L Schnall, Alison L Pruziner
BACKGROUND: Individuals with unilateral lower limb loss are at increased risk for developing knee osteoarthritis in their contralateral limb. The mechanisms underlying this phenomenon are unknown, but large or unusual loads on the limb are thought to contribute to osteoarthritis development. Yet, to our knowledge, there have been no longitudinal assessments of knee joint kinetics to assist with identifying the origin or progression of such loads. RESEARCH QUESTION: This study aimed to examine knee joint kinetics of individuals with lower limb loss as a function of time from independent ambulation...
April 26, 2018: Gait & Posture
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