keyword
MENU ▼
Read by QxMD icon Read
search

gait analysis stroke

keyword
https://www.readbyqxmd.com/read/28291737/advantages-of-eeg-phase-patterns-for-the-detection-of-gait-intention-in-healthy-and-stroke-subjects
#1
Andreea Ioana Sburlea, Luis Montesano, Javier Minguez
OBJECTIVE: One use of EEG-based brain-computer interfaces (BCIs) in rehabilitation is the detection of movement intention. In this paper we investigate for the first time the instantaneous phase of movement related cortical potential (MRCP) and its application to the detection of gait intention. APPROACH: We demonstrate the utility of MRCP phase in two independent datasets, in which 10 healthy subjects and 9 chronic stroke patients executed a self-initiated gait task in three sessions...
March 14, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28284572/an-articulated-ankle-foot-orthosis-with-adjustable-plantarflexion-resistance-dorsiflexion-resistance-and-alignment-a-pilot-study-on-mechanical-properties-and-effects-on-stroke-hemiparetic-gait
#2
Toshiki Kobayashi, Michael S Orendurff, Grace Hunt, Lucas S Lincoln, Fan Gao, Nicholas LeCursi, K Bo Foreman
Mechanical properties of an articulated ankle-foot orthosis (AFO) are closely related to gait performance in individuals post-stroke. This paper presents a pilot study on the mechanical properties of a novel articulated AFO with adjustable plantarflexion resistance, dorsiflexion resistance and alignment, and its effect on ankle and knee joint kinematics and kinetics in an individual post-stroke during gait. The mechanical properties of the AFO were quantified. Gait analysis was performed using a 3D motion capture system with a split-belt instrumented treadmill under 12 different settings of the mechanical properties of the AFO [i...
March 8, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28271220/constraints-on-perception-of-information-from-obstacles-during-foot-clearance-in-people-with-chronic-stroke
#3
Mohsen Shafizadeh, Jonathan Wheat, Keith Davids, Noureddin Nakhostin Ansari, Ali Ali, Samira Garmabi
The aim of this study was to examine effects of different types of task constraints on coupling of perception and action in people with chronic stroke when crossing obstacles during a walking task. Ten participants with hemiplegic chronic stroke volunteered to walk over a static obstacle under two distinct task constraints: simple and dual tasks. Under simple task constraints, without specific instructions, participants walked at their preferred speed and crossed over an obstacle. Under dual task constraints, the same individuals were required to subtract numbers whilst walking...
March 7, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28271039/deep-multi-scale-location-aware-3d-convolutional-neural-networks-for-automated-detection-of-lacunes-of-presumed-vascular-origin
#4
Mohsen Ghafoorian, Nico Karssemeijer, Tom Heskes, Mayra Bergkamp, Joost Wissink, Jiri Obels, Karlijn Keizer, Frank-Erik de Leeuw, Bram van Ginneken, Elena Marchiori, Bram Platel
Lacunes of presumed vascular origin (lacunes) are associated with an increased risk of stroke, gait impairment, and dementia and are a primary imaging feature of the small vessel disease. Quantification of lacunes may be of great importance to elucidate the mechanisms behind neuro-degenerative disorders and is recommended as part of study standards for small vessel disease research. However, due to the different appearance of lacunes in various brain regions and the existence of other similar-looking structures, such as perivascular spaces, manual annotation is a difficult, elaborative and subjective task, which can potentially be greatly improved by reliable and consistent computer-aided detection (CAD) routines...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28268625/detecting-voluntary-gait-intention-of-chronic-stroke-patients-towards-top-down-gait-rehabilitation-using-eeg
#5
Junhyuk Choi, Hyolim Kang, Sang Hun Chung, Yeonghun Kim, Ung Hee Lee, Jong Min Lee, Seung-Jong Kim, Min Ho Chun, Hyungmin Kim
One of the recent trends in gait rehabilitation is to incorporate bio-signals, such as electromyography (EMG) or electroencephalography (EEG), for facilitating neuroplasticity, i.e. top-down approach. In this study, we investigated decoding stroke patients' gait intention through a wireless EEG system. To overcome patient-specific EEG patterns due to impaired cerebral cortices, common spatial patterns (CSP) was employed. We demonstrated that CSP filter can be used to maximize the EEG signal variance-ratio of gait and standing conditions...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28267989/responses-to-gait-perturbations-in-stroke-survivors-who-prospectively-experienced-falls-or-no-falls
#6
Michiel Punt, Sjoerd M Bruijn, Sanne Roeles, Ingrid G van de Port, Harriet Wittink, Jaap H van Dieën
BACKGROUND: Steady-state gait characteristics appear promising as predictors of falls in stroke survivors. However, assessing how stroke survivors respond to actual gait perturbations may result in better fall predictions. We hypothesize that stroke survivors who fall have a diminished ability to adequately adjust gait characteristics after gait is perturbed. This study explored whether gait characteristics of perturbed gait differ between fallers and non fallers. METHOD: Chronic stroke survivors were recruited by clinical therapy practices...
February 21, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28254515/hereditary-cerebral-small-vessel-disease-and-stroke
#7
REVIEW
Christian Baastrup Søndergaard, Jørgen Erik Nielsen, Christine Krarup Hansen, Hanne Christensen
Cerebral small vessel disease is considered hereditary in about 5% of patients and is characterized by lacunar infarcts and white matter hyperintensities on MRI. Several monogenic hereditary diseases causing cerebral small vessel disease and stroke have been identified. The purpose of this systematic review is to provide a guide for determining when to consider molecular genetic testing in patients presenting with small vessel disease and stroke. CADASIL, CARASIL, collagen type IV mutations (including PADMAL), retinal vasculopathy with cerebral leukodystrophy, Fabry disease, hereditary cerebral hemorrhage with amyloidosis, and forkhead box C1 mutations are described in terms of genetics, pathology, clinical manifestation, imaging, and diagnosis...
February 22, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28243195/part-2-adaptation-of-gait-kinematics-in-unilateral-cerebral-palsy-demonstrates-preserved-independent-neural-control-of-each-limb
#8
Thomas C Bulea, Christopher J Stanley, Diane L Damiano
Motor adaptation, or alteration of neural control in response to a perturbation, is a potential mechanism to facilitate motor learning for rehabilitation. Central nervous system deficits are known to affect locomotor adaptation; yet we demonstrated that similar to adults following stroke, children with unilateral brain injuries can adapt step length in response to unilateral leg weighting. Here, we extend our analysis to explore kinematic strategies underlying step length adaptation and utilize dynamical systems approaches to elucidate how neural control may differ in those with hemiplegic CP across legs and compared to typically developing controls...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28228578/proof-of-concept-randomized-trial-of-the-monoclonal-antibody-gsk249320-versus-placebo-in-stroke-patients
#9
Steven C Cramer, Lori A Enney, Colleen K Russell, Monica Simeoni, Thomas R Thompson
BACKGROUND AND PURPOSE: One class of poststroke restorative therapy focuses on promoting axon outgrowth by blocking myelin-based inhibitory proteins such as myelin-associated glycoprotein. The purpose of the current study was to extend preclinical and clinical findings of GSK249320, a humanized monoclonal antibody to myelin-associated glycoprotein with disabled Fc region, to explore effects on motor outcomes poststroke. METHODS: In this phase IIb double-blind, randomized, placebo-controlled study, patients at 30 centers with ischemic stroke 24 to 72 hours prior and gait deficits were randomized to 2 IV infusions of GSK249320 or placebo...
March 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28226805/detecting-voluntary-gait-intention-of-chronic-stroke-patients-towards-top-down-gait-rehabilitation-using-eeg
#10
Junhyuk Choi, Hyolim Kang, Sang Hun Chung, Yeonghun Kim, Ung Hee Lee, Jong Min Lee, Seung-Jong Kim, Min Ho Chun, Hyungmin Kim, Junhyuk Choi, Hyolim Kang, Sang Hun Chung, Yeonghun Kim, Ung Hee Lee, Jong Min Lee, Seung-Jong Kim, Min Ho Chun, Hyungmin Kim, Seung-Jong Kim, Yeonghun Kim, Jong Min Lee, Hyungmin Kim, Junhyuk Choi, Sang Hun Chung, Hyolim Kang, Min Ho Chun, Ung Hee Lee
One of the recent trends in gait rehabilitation is to incorporate bio-signals, such as electromyography (EMG) or electroencephalography (EEG), for facilitating neuroplasticity, i.e. top-down approach. In this study, we investigated decoding stroke patients' gait intention through a wireless EEG system. To overcome patient-specific EEG patterns due to impaired cerebral cortices, common spatial patterns (CSP) was employed. We demonstrated that CSP filter can be used to maximize the EEG signal variance-ratio of gait and standing conditions...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28220261/does-a-foot-drop-implant-improve-kinetic-and-kinematic-parameters-in-the-foot-and-ankle
#11
Kiriakos Daniilidis, Eike Jakubowitz, Anna Thomann, Sarah Ettinger, Christina Stukenborg-Colsman, Daiwei Yao
INTRODUCTION: Unlike the drop foot therapy with ortheses, the therapeutic effect of an implantable peroneus nerve stimulator (iPNS) is not well described. IPNS is a dynamic therapy option which is placed directly to the motoric part of the peroneal nerve and evokes a dorsiflexion of the paralysed foot. This retrospective study evaluates the kinematics and kinetics in drop foot patients who were treated with an iPNS. MATERIALS AND METHODS: 18 subjects (mean age 51...
February 20, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28218021/a-systematic-review-of-mechanisms-of-gait-speed-change-post-stroke-part-2-exercise-capacity-muscle-activation-kinetics-and-kinematics
#12
Elizabeth C Wonsetler, Mark G Bowden
BACKGROUND: Regaining locomotor ability is a primary goal in stroke rehabilitation and is most commonly measured using changes in self-selected walking speed. However, walking speed cannot identify the mechanisms by which an individual recovers. Laboratory-based mechanistic measures such as exercise capacity, muscle activation, force production, and movement analysis variables may better explain neurologic recovery. OBJECTIVES: The objectives of this systematic review are to examine changes in mechanistic gait outcomes and describe motor recovery as quantified by changes in laboratory-based mechanistic variables in rehabilitation trials...
February 20, 2017: Topics in Stroke Rehabilitation
https://www.readbyqxmd.com/read/28196453/near-infrared-spectroscopy-in-gait-disorders
#13
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/28187305/improvement-of-upper-trunk-posture-during-walking-in-hemiplegic-patients-after-injections-of-botulinum-toxin-into-the-arm
#14
Harald Hefter, Dietmar Rosenthal
BACKGROUND: It has been hypothesized that altered trunk movements during gait in post-stroke patients or children with cerebral palsy are compensatory to lower limb impairment. Improvement of trunk movements and posture after injections of botulinum toxin into the affected arm would be at variance with this hypothesis and hint towards a multifactorial trunk control deficit. PATIENTS AND METHODS: Clinical gait analysis was performed in 11 consecutively recruited hemiplegic patients immediately before and 4weeks after a botulinum toxin type A-injection into the affected arm...
January 26, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28166324/effect-of-intensive-blood-pressure-control-on-gait-speed-and-mobility-limitation-in-adults-75-years-or-older-a-randomized-clinical-trial
#15
Michelle C Odden, Carmen A Peralta, Dan R Berlowitz, Karen C Johnson, Jeffrey Whittle, Dalane W Kitzman, Srinivasan Beddhu, John W Nord, Vasilios Papademetriou, Jeff D Williamson, Nicholas M Pajewski
Importance: Intensive blood pressure (BP) control confers a benefit on cardiovascular morbidity and mortality; whether it affects physical function outcomes is unknown. Objective: To examine the effect of intensive BP control on changes in gait speed and mobility status. Design, Setting, and Participants: This randomized, clinical trial included 2636 individuals 75 years or older with hypertension and no history of type 2 diabetes or stroke who participated in the Systolic Blood Pressure Intervention Trial (SPRINT)...
February 6, 2017: JAMA Internal Medicine
https://www.readbyqxmd.com/read/28113331/alignment-free-self-calibrating-elbow-angles-measurement-using-inertial-sensors
#16
Philipp Muller, Marc-Andre Begin, Thomas Schauer, Thomas Seel
Due to their relative ease of handling and low cost, inertial measurement unit (IMU)-based joint angle measurements are used for a widespread range of applications. These include sports performance, gait analysis and rehabilitation (e.g. Parkinson's disease monitoring or post-stroke assessment). However, a major downside of current algorithms, recomposing human kinematics from IMU data, is that they require calibration motions and/or the careful alignment of the IMUs with respect to the body segments. In this article, we propose a new method, which is alignment-free and self-calibrating using arbitrary movements of the user and an initial zero reference arm pose...
December 14, 2016: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28103638/music-interventions-for-acquired-brain-injury
#17
REVIEW
Wendy L Magee, Imogen Clark, Jeanette Tamplin, Joke Bradt
BACKGROUND: Acquired brain injury (ABI) can result in impairments in motor function, language, cognition, and sensory processing, and in emotional disturbances, which can severely reduce a survivor's quality of life. Music interventions have been used in rehabilitation to stimulate brain functions involved in movement, cognition, speech, emotions, and sensory perceptions. An update of the systematic review published in 2010 was needed to gauge the efficacy of music interventions in rehabilitation for people with ABI...
January 20, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28079633/criterion-referenced-values-of-grip-strength-and-usual-gait-speed-using-instrumental-activities-of-daily-living-disability-as-the-criterion
#18
Meng-Chih Lee, Chih-Cheng Hsu, Yi-Fen Tsai, Ching-Yu Chen, Cheng-Chieh Lin, Ching-Yi Wang
BACKGROUND AND PURPOSE: Current evidence suggests that grip strength and usual gait speed (UGS) are important predictors of instrumental activities of daily living (IADL) disability. Knowing the optimum cut points of these tests for discriminating people with and without IADL disability could help clinicians or researchers to better interpret the test results and make medical decisions. The purpose of this study was to determine the cutoff values of grip strength and UGS for best discriminating community-dwelling older adults with and without IADL disability, separately for men and women, and to investigate their association with IADL disability...
January 10, 2017: Journal of Geriatric Physical Therapy
https://www.readbyqxmd.com/read/28074998/-prognostic-factors-of-functional-recovery-from-a-stroke-at-one-year
#19
J A Moreno-Palacios, I Moreno-Martinez, A Bartolome-Nogues, E Lopez-Blanco, R Juarez-Fernandez, I Garcia-Delgado
INTRODUCTION: Recovery of the ability to walk and independence is fundamental for any patient who suffers a stroke, and it can be influenced by a number of factors. AIM: To determine what variables are more important to achieve a good functional recovery at one year after the stroke. PATIENTS AND METHODS: An observational, longitudinal prospective study was conducted with 231 patients diagnosed with a stroke in the year 2013. An analysis was performed of the clinical characteristics, socio-demographic data, neurological situation at the time of hospitalisation -National Institute of Health Stroke Scale (NIHSS)-, functional situation (Rankin Scale and Barthel Index) and ability to walk, both on hospitalisation and on discharge from rehabilitation and at one year...
January 16, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28064358/incipient-progressive-supranuclear-palsy-is-more-common-than-expected-and-may-comprise-clinicopathological-subtypes-a-forensic-autopsy-series
#20
Koji Yoshida, Yukiko Hata, Koshi Kinoshita, Shutaro Takashima, Kortaro Tanaka, Naoki Nishida
We investigated 998 serial Japanese forensic autopsy cases (0-101 years old, mean age 61.7 ± 21.9), with no case selection, using immunohistochemistry to detect cases with progressive supranuclear palsy (PSP). Twenty-nine cases (mean age 82.3 ± 7.2 years, 11 males, 18 females) fulfilled the National Institute of Neuronal Disorders and Stroke (NINDS)-PSP pathological criteria (2.9% of all cases, 4.6% of cases over 60). All had neuronal and glial inclusions in the basal ganglia and brainstem. However, 13 cases had low tau pathology and were categorized as atypical PSP...
January 7, 2017: Acta Neuropathologica
keyword
keyword
102969
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"