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https://www.readbyqxmd.com/read/28093714/neuroplasticity-based-technologies-and-interventions-for-restoring-motor-functions-in-multiple-sclerosis
#1
Sofia Straudi, Nino Basaglia
Motor impairments are very common in multiple sclerosis (MS), leading to a reduced Quality of Life and active participation. In the past decades, new insights into the functional reorganization processes that occur after a brain injury have been introduced. Specifically, the motor practice seems to be determinant to induce neuroplastic changes and motor recovery. More recently, these findings have been extended to multiple sclerosis, in particular, it has been hypothesized that disease progression, functional reorganization and disability are mutually related...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28093370/a-comparison-of-locomotor-therapy-interventions-partial-body-weight-supported-treadmill-lokomat%C3%A2-and-g-eo%C3%A2-training-in-persons-with-traumatic-brain-injury
#2
Alberto Esquenazi, Stella Lee, Amanda Wikoff, Andrew Packel, Theresa Toczylowski, John Feeley
BACKGROUND: Literature in the application of gait training techniques in persons with traumatic brain injury is limited. Current techniques require of multiple staff and are physically demanding. The use of a robotic locomotor training may provide improved training capacity for this population. OBJECTIVE: To examine the impact of three different modes of locomotor therapy on gait velocity and spatiotemporal symmetry using: an end effector robot (G-EO™); a robotic exoskeleton (Lokomat®) and manual assisted partial-body weight supported treadmill training (PBWSTT) in participants with traumatic brain injury...
January 13, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28068293/a-hybrid-bmi-based-exoskeleton-for-paresis-emg-control-for-assisting-arm-movements
#3
Toshihiro Kawase, Takeshi Sakurada, Yasuharu Koike, Kenji Kansaku
OBJECTIVE: Brain-machine interface (BMI) technologies have succeeded in controlling robotic exoskeletons, enabling some paralyzed people to control their own arms and hands. We have developed an exoskeleton asynchronously controlled by EEG signals. In this study, to enable real-time control of the exoskeleton for paresis, we developed a hybrid system with EEG and EMG signals, and the EMG signals were used to estimate its joint angles. APPROACH: Eleven able-bodied subjects and two patients with upper cervical spinal cord injuries (SCIs) performed hand and arm movements, and the angles of the metacarpophalangeal (MP) joint of the index finger, wrist, and elbow were estimated from EMG signals using a formula that we derived to calculate joint angles from EMG signals, based on a musculoskeletal model...
January 9, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28056127/applications-of-robotic-testing-systems-in-orthopaedics
#4
Richard E Debski, Satoshi Yamakawa, Volker Musahl, Hiromichi Fujie
Diarthrodial joint function is mediated by a complex interaction between bones, ligaments, capsules, articular cartilage, and muscles. To gain a better understanding of injury mechanisms and to improve surgical procedures, more scientific knowledge on the biomechanics of diarthrodial joints needs to be obtained. Robotic testing systems have been developed to measure kinematics and in situ forces in ligaments and their reconstructions using cadaveric diarthrodial joints. These 6 degree-of-freedom (DOF) robotic testing systems can be controlled in either position or force modes to simulate physiological loading conditions or clinical exams...
January 5, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/28049003/cognitive-motor-interference-on-upper-extremity-motor-performance-in-a-robot-assisted-planar-reaching-task-among-patients-with-stroke
#5
Joon-Ho Shin, Gyulee Park, Duk Youn Cho
OBJECTIVE: To explore motor performance on two different cognitive tasks during robotic rehabilitation in which motor performance was longitudinally assessed. DESIGN: Prospective study SETTING: Rehabilitation hospital PARTICIPANTS: Patients with chronic stroke and upper extremity impairment (N=22) INTERVENTION: A total of 640 repetitions of robot-assisted planar reaching, five times a week for 4 weeks MAIN OUTCOME MEASURES: Longitudinal robotic evaluations regarding motor performance included smoothness, mean velocity, path error, and reach error by the type of cognitive task...
December 31, 2016: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28035841/rehabilitation-robotics-for-the-upper-extremity-review-with-new-directions-for-orthopaedic-disorders
#6
Renée M Hakim, Brandon G Tunis, Michael D Ross
The focus of research using technological innovations such as robotic devices has been on interventions to improve upper extremity function in neurologic populations, particularly patients with stroke. There is a growing body of evidence describing rehabilitation programs using various types of supportive/assistive and/or resistive robotic and virtual reality-enhanced devices to improve outcomes for patients with neurologic disorders. The most promising approaches are task-oriented, based on current concepts of motor control/learning and practice-induced neuroplasticity...
December 30, 2016: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/28018979/increasing-access-to-cost-effective-home-based-rehabilitation-for-rural-veteran-stroke-survivors
#7
S N Housley, A R Garlow, K Ducote, A Howard, T Thomas, D Wu, K Richards, A J Butler
INTRODUCTION: An estimated 750,000 Americans experience a stroke annually. Most stroke survivors require rehabilitation. Limited access to rehabilitation facilities has a pronounced burden on functional outcomes and quality of life. Robotic devices deliver reproducible therapy without the need for real-time human oversight. This study examined the efficacy of using home-based, telerobotic-assisted devices (Hand and Foot Mentor: HM and FM) to improve functional ability and reduce depression symptoms, while improving access and cost savings associated with rehabilitation...
August 25, 2016: Austin Journal of Cerebrovascular Disease & Stroke
https://www.readbyqxmd.com/read/28008364/interfacial-pressure-and-shear-sensor-system-for-fingertip-contact-applications
#8
Maria Valero, Nick Hale, Jing Tang, Liudi Jiang, Mike McGrath, Jianliang Gao, Piotr Laszczak, David Moser
This Letter presents a capacitive-based sensor system for fingertip contact applications. It is capable of simultaneously measuring normal (pressure) and tangential (shear) stresses at the interface between a fingertip and external objects. This could be potentially exploitable for applications in the fields of upper limb prosthetics, robotics, hand rehabilitation and so on. The system was calibrated and its performance was tested using a test machine. To do so, specific test protocols reproducing typical stress profiles in fingertip contact interactions were designed...
December 2016: Healthcare Technology Letters
https://www.readbyqxmd.com/read/27999522/effect-of-comorbidities-on-outcomes-of-neurorehabilitation-interventions-in-multiple-sclerosis-a-scoping-review
#9
Afolasade Fakolade, Etienne J Bisson, Julie Pétrin, Julie Lamarre, Marcia Finlayson
Background: Interest in comorbidities has increased in the past few years, but the effect of comorbidities on outcomes of multiple sclerosis (MS) neurorehabilitation interventions is unclear. The aim of this review was to identify and summarize the existing evidence regarding the effect of comorbidities on outcomes of neurorehabilitation interventions targeting people with MS. Methods: Five databases (Embase, MEDLINE through Ovid, PubMed Central, Cumulative Index to Nursing and Allied Health Literature, and Web of Science) were searched using index terms and keywords relating to MS and a wide range of rehabilitation interventions...
November 2016: International Journal of MS Care
https://www.readbyqxmd.com/read/27990245/feedback-error-learning-controller-for-functional-electrical-stimulation-assistance-in-a-hybrid-robotic-system-for-reaching-rehabilitation
#10
Francisco Resquín, Jose Gonzalez-Vargas, Jaime Ibáñez, Fernando Brunetti, José Luis Pons
Hybrid robotic systems represent a novel research field, where functional electrical stimulation (FES) is combined with a robotic device for rehabilitation of motor impairment. Under this approach, the design of robust FES controllers still remains an open challenge. In this work, we aimed at developing a learning FES controller to assist in the performance of reaching movements in a simple hybrid robotic system setting. We implemented a Feedback Error Learning (FEL) control strategy consisting of a feedback PID controller and a feedforward controller based on a neural network...
June 13, 2016: European Journal of Translational Myology
https://www.readbyqxmd.com/read/27983626/design-and-optimization-of-a-hybrid-driven-waist-rehabilitation-robot
#11
Bin Zi, Guangcai Yin, Dan Zhang
In this paper a waist rehabilitation robot driven by cables and pneumatic artificial muscles (PAMs) has been conceptualized and designed. In the process of mechanism design, the human body structure, the waist movement characteristics, and the actuators' driving characteristics are the main considerable factors to make the hybrid-driven waist rehabilitation robot (HWRR) cost-effective, safe, flexible, and well-adapted. A variety of sensors are chosen to measure the position and orientation of the recovery patient to ensure patient safety at the same time as the structure design...
December 14, 2016: Sensors
https://www.readbyqxmd.com/read/27981912/probing-the-human-spinal-locomotor-circuits-by-phasic-step-induced-feedback-and-by-tonic-electrical-and-pharmacological-neuromodulation
#12
Ursula S Hofstoetter, Maria Knikou, Pierre A Guertin, Karen Minassian
The mammalian lumbar spinal cord experimentally isolated from supraspinal and afferent feedback input remains capable of expressing some basic locomotor function when appropriately stimulated. This ability has been attributed to spinal neural circuits referred to as central pattern generators (CPGs). In individuals with a severe spinal cord injury, rhythmic activity in paralyzed leg muscles can be generated by phasic proprioceptive feedback during therapist- or robotic-assisted stepping on a motorized treadmill...
December 14, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27965067/physiological-and-behavioral-effects-of-%C3%AE-tacs-on-brain-self-regulation-in-chronic-stroke
#13
Georgios Naros, Alireza Gharabaghi
BACKGROUND: Unlike in healthy controls, sensorimotor β-desynchronization (β-ERD) is compromised in stroke patients, i.e., the more severe the patient's motor impairment, the less β-ERD. This, in turn, provides a target substrate for therapeutic brain self-regulation and neurofeedback. OBJECTIVE: Transcranial alternating current stimulation (tACS) has been shown to modulate brain oscillations during and after stimulation, and may thus facilitate brain self-regulation during neurofeedback interventions...
November 9, 2016: Brain Stimulation
https://www.readbyqxmd.com/read/27959820/a-novel-wearable-apparatus-to-measure-fingertip-forces-in-manipulation-tasks-based-on-mems-barometric-sensors
#14
Pietro Cerveri, Mauro Quinzi, Dario Bovio, Carlo Frigo
Artificial tactile sensing is a challenging research topic in robotics, motor control and rehabilitation engineering encompassing multi-disciplinary skills and different technologies. This paper presents the development of a wearable tactile thimble system using MEMS barometric sensors and flexible printed circuit board. Barometric sensors were carefully processed to make them able to transduce contact forces. Thumb, index and medium fingers were equipped with an array of six sensing elements each, covering the central, lateral and medial aspects of the fingertip...
December 7, 2016: IEEE Transactions on Haptics
https://www.readbyqxmd.com/read/27935557/wearable-tubing-assistive-walking-device-immediately-enhances-gait-parameters-in-subjects-with-stroke-a-randomized-controlled-study
#15
Seung-Mi Lee, Heon-Seock Cynn, Chung-Hwi Yi, Tae-Lim Yoon, Ji-Hyun Lee
BACKGROUND: Stroke patients develop compensatory movements due to limitations of ankle dorsiflexion and knee flexion. To solve the limitations, there are many adjustable walking assistive devices such as robotic devices, ankle-foot orthoses, and functional electric stimulation in rehabilitation session. However, these assistive devices have some disadvantages, including expense and discomforts. Therefore, the development of a new assistive device for stroke patients is needed to assist ankle dorsiflexion and knee flexion...
December 8, 2016: NeuroRehabilitation
https://www.readbyqxmd.com/read/27926617/robotic-approaches-for-the-rehabilitation-of-upper-limb-recovery-after-stroke-a-systematic-review-and-meta-analysis
#16
Chao Zhang, Cecilia W P Li-Tsang, Ricky K C Au
This systematic review with a meta-analysis of studies was carried out to evaluate the effectiveness of robotic training (RT) and conventional training (CT) in improving the motor recovery of paretic upper limbs in stroke patients. Numerous electronic databases were searched from January 2000 to May 2016. Finally, 13 randomized-controlled trials fulfilled the inclusion criteria and were included in the three meta-analyses. The first meta-analysis carried out for those studies using RT for stroke patients indicated a significant improvement in the RT groups...
December 6, 2016: International Journal of Rehabilitation Research. Revue Internationale de Recherches de Réadaptation
https://www.readbyqxmd.com/read/27923391/erratum-to-robot-assisted-and-conventional-therapies-produce-distinct-rehabilitative-trends-in-stroke-survivors
#17
Francisco J Valero-Cuevas, Verena Klamroth-Marganska, Carolee J Winstein, Robert Riener
No abstract text is available yet for this article.
December 6, 2016: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/27914920/can-lowering-the-guidance-force-of-robot-assisted-gait-training-induce-a-sufficient-metabolic-demand-in-subacute-dependent-ambulatory-stroke-patients
#18
So Young Lee, Eun Young Han, Bo Ryun Kim, Min Ho Chun, Yong Ki Lee
OBJECTIVE: To assess the effects of guidance force (GF) and gait speed (GS) on cardiorespiratory responses and energy cost in subacute dependent ambulatory stroke patients. DESIGN: Cross sectional study. SETTING: University rehabilitation hospital. PARTICIPANTS: Ten subacute stroke patients (mean age: 64.50±19.20), who were dependent ambulators (functional ambulation category [FAC] ≤2). INTERVENTIONS: Patients participated in cardiorespiratory tests during robot-assisted gait training...
November 30, 2016: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/27901413/dose-response-outcomes-associated-with-different-forms-of-locomotor-training-in-persons-with-chronic-motor-incomplete-spinal-cord-injury
#19
Evan Blake Sandler, Kathryn E Roach, Edelle C Field-Fote
Outcomes of training are thought to be related to amount of training (training dose). While various approaches to locomotor training have been used to improve walking function in persons with spinal cord injury, little is known about the relationship between dose of locomotor training and walking outcomes. This secondary analysis aimed to identify the relationship between training dose and improvement in walking distance and speed associated with the largest randomized clinical trial to date of locomotor training in participants with chronic motor-incomplete spinal cord injury (MISCI)...
November 30, 2016: Journal of Neurotrauma
https://www.readbyqxmd.com/read/27895574/robot-assisted-rehabilitation-of-ankle-plantar-flexors-spasticity-a-3-month-study-with-proprioceptive-neuromuscular-facilitation
#20
Zhihao Zhou, Yao Sun, Ninghua Wang, Fan Gao, Kunlin Wei, Qining Wang
In this paper, we aim to investigate the effect of proprioceptive neuromuscular facilitation (PNF)-based rehabilitation for ankle plantar flexors spasticity by using a Robotic Ankle-foot Rehabilitation System (RARS). A modified robot-assisted system was proposed, and seven poststroke patients with hemiplegic spastic ankles participated in a 3-month robotic PNF training. Their impaired sides were used as the experimental group, while their unimpaired sides as the control group. A robotic intervention for the experimental group started from a 2-min passive stretching to warming-up or relaxing the soleus and gastrocnemius muscles and also ended with the same one...
2016: Frontiers in Neurorobotics
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