Filtered By:
Source: IEE Transactions on Neural Systems and Rehabilitation Engineering
This page shows you your search results in order of relevance. This is page number 7.
Order by Relevance | Date
Total 279 results found since Jan 2013.
Technology-Assisted Ankle Rehabilitation Improves Balance and Gait Performance in Stroke Survivors: A Randomized Controlled Study With 1-Month Follow-Up
Many stroke survivors have limited ankle range of motion (ROM) caused by weak dorsiflexors and stiff plantarflexors. Passive ankle stretching exercises with physical therapists or a stretching board are usually recommended, but these treatments have some limitations (e.g., cost and availability of physical therapists). In this paper, we assessed the results of ankle stretching exercises delivered by a robotic ankle stretching system called motorized ankle stretcher (MAS) that we developed or by a stretching board on ankle ROM, balance control, and gait performance. The 16 stroke survivors were randomly assigned to an inter...
Source: IEE Transactions on Neural Systems and Rehabilitation Engineering - December 1, 2018 Category: Neuroscience Source Type: research
“Remind-to-Move” for Promoting Upper Extremity Recovery Using Wearable Devices in Subacute Stroke: A Multi-Center Randomized Controlled Study
This paper examined the effects of “Remind-to-Move” (RTM) via vibration cueing using wearable devices to increase the use of the affected upper limb and integrate upper limb activities undertaken at home in patients with subacute stroke after inpatient discharge. In a multi-centered randomized controlled trial, 84 eligible patients from four general hospitals, who had a first stroke in the last six months, were randomly allocated to either an experimental, sham, or control group, stratified by arm function levels. Patients in the experimental group were treated by RTM, using wearable devices for three consecu...
Source: IEE Transactions on Neural Systems and Rehabilitation Engineering - January 1, 2019 Category: Neuroscience Source Type: research
Improved Kinematics and Motor Control in a Longitudinal Study of a Complex Therapy Movement in Chronic Stroke
Impaired motor control post-stroke is typically measured using clinical assessments employing categorical and subjective scoring. We investigated quantitative kinematic parameters of a complex movement with therapy in chronic stroke. Tri-axial accelerometry of the more-affected arm of 24 patients was recorded during early- (day 2–3) and late- (days 12–14) therapy, and for 13 patients at 6-month follow-up. Clinical assessments included the classification of motor-function as low, moderate, or high. Kinematic parameters were measured during Wii-baseball swings to assess the effect of time and the level of motor...
Source: IEE Transactions on Neural Systems and Rehabilitation Engineering - March 31, 2019 Category: Neuroscience Source Type: research
Biomechanical Evaluation of Three-Dimensional Printed Dynamic Hand Device for Patients With Chronic Stroke
Provision of adequate task-oriented training can be difficult for stroke survivors with limited hand movement. The current passive devices are mainly intended for gross grasp and release training. Additional assistive devices are required to improve functional opposition. This paper investigated the functional recovery of chronic stroke patients after using a three-dimensional (3D) printed dynamic hand device (3D-DHD) as an adjunct to conducting a task-oriented approach (TOA). Ten participants were randomly assigned to either the 3D-DHD group (n = 5) or the control group (n = 5). The TOA was used for the 3D-D...
Source: IEE Transactions on Neural Systems and Rehabilitation Engineering - May 31, 2019 Category: Neuroscience Source Type: research
An Assessment System for Post-Stroke Manual Dexterity Using Principal Component Analysis and Logistic Regression
Hand function assessment is crucial for patients with stroke, who must perform regular repetitive tasks during rehabilitation. However, the conventional evaluation method is subjective and not uniform among physicians. A novel method is proposed in this paper to analyze raw data from a data glove equipped with 16 six-axis inertial measurement units. The proposed method can provide accurate assistance to physicians and objectively assess patients’ hand function. Three tasks (the thumb task, the grip task, and the card-turning task) were conducted to evaluate participants’ hand function. Representative paramete...
Source: IEE Transactions on Neural Systems and Rehabilitation Engineering - July 31, 2019 Category: Neuroscience Source Type: research
Cellphone-Based Automated Fugl-Meyer Assessment to Evaluate Upper Extremity Motor Function After Stroke
The Fugl-Meyer Assessment (FMA) is a widely used evaluation tool for assessing upper extremity motor function during stroke rehabilitation. However, the FMA is a repetitive, time-consuming task that currently must be performed by therapists in a hospital or clinic. We thus propose an alternative automated approach in which patients perform FMA movements while holding a cellphone at the hand and receive automated FMA scores. In the proposed system, features are extracted from cellphone movement data and decision trees are used to automatically score FMA test items. Ten stroke patients with upper extremity dysfunction partic...
Source: IEE Transactions on Neural Systems and Rehabilitation Engineering - September 30, 2019 Category: Neuroscience Source Type: research
The Reorganization of Resting-State Brain Networks Associated With Motor Imagery Training in Chronic Stroke Patients
A number of studies have suggested that motor imagery training (MIT) has a positive influence on the upper extremity motor recovery in stroke patients, but little is known about its neural basis. To investigate the cortical motor network plasticity after MIT, 34 chronic hemiplegic subjects with subcortical stroke were recruited and randomly allocated to either the conventional rehabilitation therapy (CRT) or the CRT + MIT. The patients were assessed with the upper limb section of Fugl–Meyer assessment Scale (FM-UL) and resting-state fMRI before and after the 4 weeks of treatment. Seed-based functional connect...
Source: IEE Transactions on Neural Systems and Rehabilitation Engineering - September 30, 2019 Category: Neuroscience Source Type: research
Use of Pelvic Corrective Force With Visual Feedback Improves Paretic Leg Muscle Activities and Gait Performance After Stroke
The purpose of this study was to examine the effects of combined pelvic corrective force and visual feedback during treadmill walking on paretic leg muscle activity and gait characteristics in individuals with post-stroke hemiparesis. Fifteen chronic stroke participants completed visual feedback only and combined pelvic corrective force and visual feedback conditions during treadmill walking. Each condition included: 1-minute baseline, 7-minute training with visual feedback only or additional pelvic corrective force, 1-minute post training, 1-minute standing break, and another 5-minute training. EMGs from the paretic leg m...
Source: IEE Transactions on Neural Systems and Rehabilitation Engineering - November 30, 2019 Category: Neuroscience Source Type: research
A Novel Soft Robotic Supernumerary Hand for Severely Affected Stroke Patients
Upper limb functions are severely affected in 23% of the chronic stroke patients, compromising their life quality. To re-enable hand use, providing a degree of functionality and motivating against learned non-use, we propose a robotic supernumerary limb, the SoftHand X (SHX), consisting of a robotic hand, a gravity support system, and different sensors to detect the patient’s intent for controlling the robotic hand. In this paper, this novel compensational approach is introduced and experimentally evaluated in stroke patients, assessing its efficacy, usability and safety. Ten patients were asked to perform ta...
Source: IEE Transactions on Neural Systems and Rehabilitation Engineering - April 30, 2020 Category: Neuroscience Source Type: research
Model-Based Sensitivity Analysis of EMG Clustering Index With Respect to Motor Unit Properties: Investigating Post-Stroke FDI Muscle
The objective of this study is to explore the diagnostic decision and sensitivity of the surface electromyogram (EMG) clustering index (CI) with respect to post-stroke motor unit (MU) alterations through a simulation approach by the existing motor neuron pool model and surface EMG model. In the simulation analysis, three patterns of diagnostic decisions were presented in 24 groups representing eight types in three degrees of MU alterations. Specifically, the CI decision exhibited an abnormally increased pattern for five types, an abnormally decreased pattern for two types, and an invariant pattern for one type. Furthermore...
Source: IEE Transactions on Neural Systems and Rehabilitation Engineering - July 31, 2020 Category: Neuroscience Source Type: research
Gait Adaptation Using a Cable-Driven Active Leg Exoskeleton (C-ALEX) With Post-Stroke Participants
In this study, we assessed the ability of C-ALEX to induce a change in the walking patterns of ten post-stroke participants using a single-session training protocol. The ability of C-ALEX to accurately provide forces and torques in the desired directions was also evaluated to compare its design performance to traditional rigid-link designs. Participants were able to reach 91% ± 12% of their target step length and 89% ± 13% of their target step height. The achieved step parameters differed significantly from participant baselines ( ${p} < {0.05}$ ). To quantify the performance, t...
Source: IEE Transactions on Neural Systems and Rehabilitation Engineering - August 31, 2020 Category: Neuroscience Source Type: research
Targeted Pelvic Constraint Force Induces Enhanced Use of the Paretic Leg During Walking in Persons Post-Stroke
The purpose of this study was to determine whether activation of muscles in the paretic leg, particularly contributing to propulsion, and gait symmetry can be improved by applying a targeted resistance force to the pelvis in the backward direction during stance phase while walking in individuals post-stroke. Thirteen individuals post-stroke participated in two experimental sessions, which consisted of treadmill walking, with either targeted or constant resistances, together with overground walking. For the targeted condition, a resistance force was applied to the pelvis during the stance phase of the paretic leg. For the c...
Source: IEE Transactions on Neural Systems and Rehabilitation Engineering - October 1, 2020 Category: Neuroscience Source Type: research
User-Driven Functional Movement Training With a Wearable Hand Robot After Stroke
We present the clinical outcomes of a pilot study designed as a feasibility test for these hypotheses. 11 chronic stroke (>2 years) patients with moderate muscle tone (Modified Ashworth Scale $leq 2$ in upper extremity) engaged in a month-long training protocol using the orthosis. Individuals were evaluated using standardized outcome measures, both with and without orthosis assistance. Fugl-Meyer post intervention scores without robotic assistance showed improvement focused specifically at the distal joints of the upper limb, suggesting the use of the orthosis as a rehabilitative device for the hand. Action Research...
Source: IEE Transactions on Neural Systems and Rehabilitation Engineering - October 1, 2020 Category: Neuroscience Source Type: research
Development and Preliminary Validation of a Pneumatic Focal Vibration System to the Mitigation of Post-Stroke Spasticity
This study will not only provide a potential tool to relieve post-stroke spasticity, but also contribute to improving the sensory and motor function of patients with other neurological diseases, e.g. spinal cord injury, multiple sclerosis, Parkinson and dystonia, etc.
Source: IEE Transactions on Neural Systems and Rehabilitation Engineering - March 5, 2021 Category: Neuroscience Source Type: research
Quantification of Motor Function Post-Stroke Using Novel Combination of Wearable Inertial and Mechanomyographic Sensors
Subjective clinical rating scales represent the gold-standard for diagnosis of motor function following stroke. In practice however, they suffer from well-recognized limitations including assessor variance, low inter-rater reliability and low resolution. Automated systems have been proposed for empirical quantification but have not significantly impacted clinical practice. We address translational challenges in this arena through: (1) implementation of a novel sensor suite combining inertial measurement and mechanomyography (MMG) to quantify hand and wrist motor function; and (2) introduction of a new range of signal featu...
Source: IEE Transactions on Neural Systems and Rehabilitation Engineering - June 25, 2021 Category: Neuroscience Source Type: research
