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gait analysis stroke

Mario Munoz-Organero, Jack Parker, Lauren Powell, Susan Mawson
Insole pressure sensors capture the different forces exercised over the different parts of the sole when performing tasks standing up such as walking. Using data analysis and machine learning techniques, common patterns and strategies from different users to achieve different tasks can be automatically extracted. In this paper, we present the results obtained for the automatic detection of different strategies used by stroke survivors when walking as integrated into an Information Communication Technology (ICT) enhanced Personalised Self-Management Rehabilitation System (PSMrS) for stroke rehabilitation...
October 1, 2016: Sensors
Simona Ferrante, Noelia Chia Bejarano, Emilia Ambrosini, Antonio Nardone, Anna M Turcato, Marco Monticone, Giancarlo Ferrigno, Alessandra Pedrocchi
It has been largely suggested in neuroscience literature that to generate a vast variety of movements, the Central Nervous System (CNS) recruits a reduced set of coordinated patterns of muscle activities, defined as muscle synergies. Recent neurophysiological studies have recommended the analysis of muscle synergies to finely assess the patient's impairment, to design personalized interventions based on the specific nature of the impairment, and to evaluate the treatment outcomes. In this scope, the aim of this study was to design a personalized multi-channel functional electrical stimulation (FES) controller for gait training, integrating three novel aspects: (1) the FES strategy was based on healthy muscle synergies in order to mimic the neural solutions adopted by the CNS to generate locomotion; (2) the FES strategy was personalized according to an initial locomotion assessment of the patient and was designed to specifically activate the impaired biomechanical functions; (3) the FES strategy was mapped accurately on the altered gait kinematics providing a maximal synchronization between patient's volitional gait and stimulation patterns...
2016: Frontiers in Neuroscience
Erika Pedreira da Fonseca, Nildo Manoel Ribeiro da Silva, Elen Beatriz Pinto
OBJECTIVES: The study aimed to check the therapeutic effect of virtual reality associated with conventional physiotherapy on gait balance and the occurrence of falls after a stroke. METHODS: This was a randomized, blinded clinical trial conducted with post-stroke patients, randomized into two groups-treatment group and control group-and subjected to balance assessments by the Dynamic Gait Index and investigation of falls before and after 20 intervention sessions...
September 29, 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
Woo-Sub Kim, Min Joo Kim
OBJECTIVE: Patients with post-stroke hemiplegia have difficulty with body weight support during walking. However, it is unclear which intra-limb strategy for body weight support tends to predominate, and how the intra-limb strategy is related to gait function. Support moment and individual joint contribution to support moment are the parameters that reflect intra-limb strategy for body weight supporting. The aim of this study was to test whether support moment and individual joint contributions differed between post-stroke subjects with different gait function...
August 12, 2016: Topics in Stroke Rehabilitation
David Chaparro, Justine Lacroix, Benoit Borel, Jean-Yves Salle, Benjamin Kammoun, Jean-Christophe Daviet, Stéphane Mandigout
OBJECTIVE: Physical activity (PA) and exercise are two successful approaches to reduce sedentary behavior and risk managing in stroke patients. The aims of the study are to evaluate PA and physical inactivity levels in post-stroke patients and to correlate PA parameters with gait performance, fatigue, anxiety, and anthropometry parameters in subacute phase of stroke recovery. MATERIAL/PATIENTS AND METHODS: Preliminary analysis of 24 patients in PA incitation program (mean age: 61...
September 2016: Annals of Physical and Rehabilitation Medicine
Jeanne Montastruc, David Amarantini, Valérie Lambert, Evelyne Castel-Lacanal, Philippe Marque, David Gasq
OBJECTIVE: Weight-bearing asymmetry (WBA) at the expense of the paretic side concerns 60% of stroke patients. WBA is associated with poor functional prognosis especially in terms of gait performance [1,2]. The primary objective was to assess the determinants of WBA in stroke patients from clinical and instrumental data. MATERIAL/PATIENTS AND METHODS: The sensitivity (EmNSA), motricity (Fugl-Meyer motor), spatial neglect and visual perception of verticality (VPV) were evaluated in 20 stroke patients (age: 53...
September 2016: Annals of Physical and Rehabilitation Medicine
Fumihiro Matsuda, Masahiko Mukaino, Kei Ohtsuka, Hiroki Tanikawa, Kazuhiro Tsuchiyama, Toshio Teranishi, Yoshikiyo Kanada, Hitoshi Kagaya, Eiichi Saitoh
BACKGROUND: The toe clearance of a paretic limb in the swing phase of gait is related to tripping, which is considered a major cause of falls. The biomechanical factors for obtaining toe clearance are more complicated in hemiparetic gait than that in normal gait because of the compensatory movements during swing phase. Understanding the biomechanical factors should help in targeting the point for rehabilitative interventions. OBJECTIVE: To clarify the biomechanical factors behind toe clearance during swing phase in hemiparetic gait...
September 27, 2016: Topics in Stroke Rehabilitation
M Attias, A Bonnefoy-Mazure, G De Coulon, L Cheze, S Armand
Contracture is a permanent shortening of the muscle-tendon-ligament complex that limits joint mobility. Contracture is involved in many diseases (cerebral palsy, stroke, etc.) and can impair walking and other activities of daily living. The purpose of this study was to quantify the reliability of an exoskeleton designed to emulate lower limb muscle contractures unilaterally and bilaterally during walking. An exoskeleton was built according to the following design criteria: adjustable to different morphologies; respect of the principal lines of muscular actions; placement of reflective markers on anatomical landmarks; and the ability to replicate the contractures of eight muscles of the lower limb unilaterally and bilaterally (psoas, rectus femoris, hamstring, hip adductors, gastrocnemius, soleus, tibialis posterior, and peroneus)...
September 19, 2016: Gait & Posture
Rodolfo Savica, Alexandra M V Wennberg, Clinton Hagen, Kelly Edwards, Rosebud O Roberts, John H Hollman, David S Knopman, Bradley F Boeve, Mary M Machulda, Ronald C Petersen, Michelle M Mielke
BACKGROUND: Previous studies reported that slower gait speed might predict cognitive impairment and dementing illnesses, supporting the role of gait speed as a possible subclinical marker of cognitive impairment. However, the predictive value of other gait parameters for cognitive decline is unclear. OBJECTIVE: To investigate and compare the association with, and prediction of, specific gait parameters for cognition in a population-based sample. METHODS: The analysis included 3,426 cognitively normal participants enrolled in the Mayo Clinic Study of Aging...
September 23, 2016: Journal of Alzheimer's Disease: JAD
Hanneke J R van Duijnhoven, Anita Heeren, Marlijn A M Peters, Janne M Veerbeek, Gert Kwakkel, Alexander C H Geurts, Vivian Weerdesteyn
BACKGROUND AND PURPOSE: The purpose of this systematic review and meta-analysis was to investigate the effects of exercise training on balance capacity in people in the chronic phase after stroke. Furthermore, we aimed to identify which training regimen was most effective. METHODS: Electronic databases were searched for randomized controlled trials evaluating the effects of exercise therapy on balance capacity in the chronic phase after stroke. Studies were included if they were of moderate or high methodological quality (PEDro score ≥4)...
October 2016: Stroke; a Journal of Cerebral Circulation
Abigail L Leddy, Mark Connolly, Carey L Holleran, Patrick W Hennessy, Jane Woodward, Ross A Arena, Elliot J Roth, T George Hornby
BACKGROUND AND PURPOSE: Impairments in metabolic capacity and economy (O2cost) are hallmark characteristics of locomotor dysfunction following stroke. High-intensity (aerobic) training has been shown to improve peak oxygen consumption in this population, with fewer reports of changes in O2cost. However, particularly in persons with subacute stroke, inconsistent gains in walking function are observed with minimal associations with gains in metabolic parameters. The purpose of this study was to evaluate changes in aerobic exercise performance in participants with subacute stroke following high-intensity variable stepping training as compared with conventional therapy...
October 2016: Journal of Neurologic Physical Therapy: JNPT
Chang Sik Park, Seung Heon An
[Purpose] This study aimed to examine the inter- and intra-rater reliability and validity of the modified functional ambulation category (mFAC) scale. [Subjects and Methods] The participants were 66 stroke patients with hemiparalysis. The inter- and intra-rater validity of the mFAC was calculated using the Spearman correlation coefficient. A score comparison of the stable or maximum gait speed with regard to mFAC and modified Rivermead Mobility Index (mRMI) performances was performed as a univariate linear regression analysis to determine how the Kruskal-Wallis test affects the mRMI and stable/maximum gait speed with regard to mFAC...
August 2016: Journal of Physical Therapy Science
Richard Baker, Alberto Esquenazi, Maria G Benedetti, Kaat Desloovere
Gait analysis is a well-established tool for the quantitative assessment of gait disturbances providing functional diagnosis, assessment for treatment planning, and monitoring of disease progress. There is a large volume of literature on the research use of gait analysis, but evidence on its clinical routine use supports a favorable cost-benefit ratio in a limited number of conditions. Initially gait analysis was introduced to clinical practice to improve the management of children with cerebral palsy. However, there is good evidence to extend its use to patients with various upper motor neuron diseases, and to lower limb amputation...
August 2016: European Journal of Physical and Rehabilitation Medicine
O Wiezel, Y Or
This work studies the motion of Purcell's three-link microswimmer in viscous flow, by using perturbation expansion of its dynamics under small-amplitude strokes. Explicit leading-order expressions and next-order correction terms for the displacement of the swimmer are obtained for the cases of a square or circular gait in the plane of joint angles. The correction terms demonstrate the reversal in movement direction for large stroke amplitudes, which has previously only been shown numerically. In addition, asymptotic expressions for Lighthill's energetic efficiency are obtained for both gaits...
August 2016: Proceedings. Mathematical, Physical, and Engineering Sciences
M Schwarze, J Block, M Alimusaj, N Beckmann, M Schiltenwolf
Expert medical opinions are necessary in pretrial cases and other legal matters. They act as means of evidence for administrative bodies and courts. It may be necessary to adapt the method of evaluation depending upon the issue or subject matter to be evaluated. We report on a social court case, which needed to answer the question of the medical necessity of a functional electrical stimulation orthosis prescribed to improve the function of a drop foot accompanied by an atactic gait disorder. The claimant suffered from a stroke, which had occurred several years before...
September 9, 2016: Zeitschrift Für Orthopädie und Unfallchirurgie
D Yao, E Jakubowitz, K Tecante, M Lahner, S Ettinger, L Claassen, C Plaass, C Stukenborg-Colsman, K Daniilidis
OBJECTIVE: The objective was to obtain first insights into the kinematic and kinetic walking patterns resulting from an implanted functional electrical stimulation system in subjects with a drop foot caused by stroke. METHODS: Four subjects who experienced a stroke were chosen due to a comparatively long/short time after surgery and young/old at the stroke event were examined retrospectively with gait analysis. Kinematics and kinetics of normal walking were assessed in comparison with and without activated drop foot stimulation...
September 1, 2016: Musculoskeletal Surgery
Daniele Munari, Anna Pedrinolla, Nicola Smania, Alessandro Picelli, Marialuisa Gandolfi, Leopold Saltuari, Federico Schena
BACKGROUND: Stroke is a major cause of death and long-term disability across the globe. Previous studies have demonstrated the trainability of stroke survivors and documented beneficial effects of aerobic exercises on cardiovascular fitness and gait ability. AIM: The main aim of this study was to compare the effects of a high-intensity treadmill training (HITT) against low-intensity treadmill training (LITT) on gait ability, quality of life, cardiorespiratory fitness and cost of walking in chronic stroke subjects...
August 30, 2016: European Journal of Physical and Rehabilitation Medicine
Erica Tilley, James McLoughlin, Simon A Koblar, Sebastian H Doeltgen, Cindy Stern, Sarahlouise White, Micah D J Peters
BACKGROUND: Progressive supranuclear palsy (PSP) is an adult onset neurodegenerative condition associated with mobility, balance, speech, swallowing, vision and cognitive changes. The condition is diagnosed using the National Institute for Neurological Disorders and Stroke (NINDS) and the Society of Progressive Supranuclear Palsy (SPSP) criteria. Therapeutic interventions for PSP are important, and a healthcare team should include a physiotherapist, occupational therapist and speech therapist...
June 2016: JBI Database of Systematic Reviews and Implementation Reports
Jennifer L Hunnicutt, Stacey E Aaron, Aaron E Embry, Brian Cence, Patrick Morgan, Mark G Bowden, Chris M Gregory
Background. Approximately 35,000 strokes occur annually in adults below the age of 40, and there is disappointingly little data describing their responses to rehabilitation. The purpose of this analysis was to determine the effects of Poststroke Optimization of Walking using Explosive Resistance (POWER) training in young (<40 years) and older (>60 years) adults and to describe relationships between training-induced improvements in muscular and locomotor function. Methods. Data was analyzed from 16 individuals with chronic stroke who participated in 24 sessions of POWER training...
2016: Stroke Research and Treatment
Stephanie Marrocco, Lucas D Crosby, Ian C Jones, Rebecca F Moyer, Trevor B Birmingham, Kara K Patterson
BACKGROUND: Post-stoke gait disorders could cause secondary musculoskeletal complications associated with excessive repetitive loading. The study objectives were to 1) determine the feasibility of measuring common proxies for dynamic medial knee joint loading during gait post-stroke with external knee adduction (KAM) and flexion moments (KFM) and 2) characterize knee loading and typical load-reducing compensations post-stroke. METHODS: Participants with stroke (n=9) and healthy individuals (n=17) underwent 3D gait analysis...
September 2016: Gait & Posture
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