Low-cost haptic glove for grasp precision improvement in Virtual Reality-Based Post-Stroke Hand Rehabilitation

2021 ◽  
Author(s):  
Mostefa Masmoudi ◽  
Nadia Zenati ◽  
Samir Benbelkacem ◽  
Zineb Hadjadj ◽  
Oualid Djekoune ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Low Cost ◽  
Hand Rehabilitation ◽  
Post Stroke

Combined tendon vibration and virtual reality for post-stroke hand rehabilitation

2013 ◽  
Author(s):  
M. D. Rinderknecht ◽  
Yeongmi Kim ◽  
L. Santos-Carreras ◽  
H. Bleuler ◽  
R. Gassert
Keyword(s):  
Virtual Reality ◽  
Tendon Vibration ◽  
Hand Rehabilitation ◽  
Post Stroke

A Virtual Reality—Based Exercise System for Hand Rehabilitation Post-Stroke

2005 ◽  
Vol 14 (2) ◽  
pp. 161-174 ◽  
Author(s):  
Sergei V. Adamovich ◽  
Alma S. Merians ◽  
Rares Boian ◽  
Jeffrey A. Lewis ◽  
Marilyn Tremaine ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Hand Function ◽  
Neurological Impairment ◽  
Lesion Size ◽  
Task Completion ◽  
Hand Rehabilitation ◽  
Oracle Database ◽  
Post Stroke ◽  
Real Objects ◽  
Movement Parameters

This paper presents preliminary results from a virtual reality (VR)-based system for hand rehabilitation that uses a CyberGlove and a Rutgers Master II-ND haptic glove. This computerized system trains finger range of motion, finger flexion speed, independence of finger motion, and finger strength using specific VR simulation exercises. A remote Web-based monitoring station was developed to allow telerehabilitation interventions. The remote therapist observes simplified versions of the patient exercises that are updated in real time. Patient data is stored transparently in an Oracle database, which is also Web accessible through a portal GUI. Thus the remote therapist or attending physician can graph exercise outcomes and thus evaluate patient outcomes at a distance. Data from the VR simulations is complemented by clinical measurements of hand function and strength. Eight chronic post-stroke subjects participated in a pilot study of the above system. In keeping with variability in both their lesion size and site and in their initial upper extremity function, each subject showed improvement on a unique combination of movement parameters in VR training. Importantly, these improvements transferred to gains on clinical tests, as well as to significant reductions in task-completion times for the prehension of real objects. These results are indicative of the potential feasibility of this exercise system for rehabilitation in patients with hand dysfunction resulting from neurological impairment.

scholarly journals Psychological and Psychophysiological Responses to Challenge Variations for Virtual Hand Training in Game-based Smart Rehabilitation System

2021 ◽  
pp. 1-21
Author(s):  
Amin Asgharzadeh Alvar ◽  
◽  
Ali Esteki ◽  
Iraj Abdollahi ◽  
◽  
...  
Keyword(s):  
Virtual Reality ◽  
Low Cost ◽  
Cost Benefit ◽  
Underlying Mechanism ◽  
Mental States ◽  
Psychological State ◽  
Leap Motion ◽  
Hand Rehabilitation ◽  
Psychophysiological Responses ◽  
Rehabilitation System

Background: Maintaining motivation is one of the most important characteristics of rehabilitation strategies for successful treatment. Understanding the underlying mechanism of mental state is helpful for developing new therapeutic methods based on virtual reality and serious game technologies. Objective: The present study aims to develop a cost-benefit game-based hand rehabilitation system and assess the influence on the psychological state of subjects when they interact with a virtual reality environment in different task difficulty levels. Methods: First, we introduced a low-cost smart hand rehabilitation system based on the Leap Motion tracker; then, the experimental study was performed with 20 healthy participants. Their mental states were evoked using interaction with two separate games in four different difficulty levels. Three measures from the SAM self-reported test described as a psychological response to this condition, and also four features were extracted from Photoplethysmogram signal in order to quantify psychophysiological responses of Autonomic Nervous System. Results: Comparison of the different difficulty levels revealed significant changes in arousal and dominance correspond to under challenging and over the challenging condition, respectively. The results of psychophysiological feature analysis showed significant differences only for the standard deviation of intervals between consecutive heartbeats. Conclusion: The developed system is a low-cost smart solution that can be useful for upper limb neurological rehabilitation. Regulating difficulty parameters of the implemented game can be used to influence the motivation of users through rehabilitation procedures. It seems Photoplethysmogram is an appropriate psychophysiological indicator of mental states, but further studies are required.

scholarly journals Effect of Post-Stroke Motor Training on EEG Movement-Related Cortical Potentials

2020 ◽  
Author(s):  
Maryam Butt ◽  
Golshah Naghdy ◽  
Fazel Naghdy ◽  
Geoffrey Murray ◽  
Haiping Du
Keyword(s):  
Low Cost ◽  
Motor Training ◽  
Clinical Test ◽  
Kinematic Parameters ◽  
Eeg Signals ◽  
Hand Rehabilitation ◽  
Stroke Patients ◽  
Post Stroke ◽  
Group A ◽  
Group B

Abstract BackgroundRehabilitation of post-stroke patients with motor impairments promotes re-learning of lost motor functions through the brain neuroplasticity. Monitoring of electroencephalogram (EEG) signals has the potential to show neuroplasticity changes that take place during motor training.MethodsIn this study, an EEG-derived time-domain pattern namely movement-related cortical potential (MRCP) was deployed to assess the effect of motor training in seven post-stroke patients. Patients were divided into two groups; group A comprising four subjects with supratentorial lesions and group B consisting of three subjects with infratentorial lesions. Both groups participated in motor training with an AMADEO hand rehabilitation device. During pre and post-training periods, EEG signals at eight selected electrodes were recorded. In addition, hand-kinematic parameters, and clinical tests were measured at the beginning and the end of all training sessions.ResultsThe negative peak of the MRCP signals decreased at all electrodes and reached significance in seven of eight electrodes for group A after 12 training sessions, while it was decreased at all electrodes and reached significance in two of eight electrodes for group B after 24 sessions according to paired t-test (p < 0.05). Moreover, these MRCP changes correlated with improvements in kinematic parameters and clinical test results for both groups.ConclusionsThis study shows that robot-assisted training that improves clinical outcomes is associated with MRCP pattern changes. Subjects with infratentorial strokes improved slower clinically compared to subjects with supratentorial strokes. This was consistent with the longer rehabilitation required for this group of patients to produce significant changes in MRCP. The reduction of negative peaks of the MRCP signal indicates that neurological pathways are established and less cortical resources are needed for motor tasks. This study demonstrates the significance of EEG as a practical and low-cost tool in detecting patterns associated with brain neuroplasticity in the course of motor re-learning. Ethics ApprovalThe procedures performed in this study were approved by the University of Wollongong Ethics Committee (Ethics application number: 2014/400) on 03/07/2017.

A Virtual Reality Exergame with a Low-cost 3D Motion Tracking for At-Home Post-Stroke Rehabilitation

2021 ◽  
Author(s):  
Julia Tannus de Souza ◽  
Caroline Valentini ◽  
Eduardo Lazaro Martins Naves ◽  
Edgard Afonso Lamounier Jr.
Keyword(s):  
Virtual Reality ◽  
Stroke Rehabilitation ◽  
Motion Tracking ◽  
Low Cost ◽  
3D Motion ◽  
Post Stroke ◽  
At Home

Method of virtual reality for early comprehensive rehabilitation of patients with acute stroke

2020 ◽  
pp. 39-45
Author(s):  
N. Nozdryukhina ◽  
E. Kabayeva ◽  
E. Kirilyuk ◽  
K. Tushova ◽  
A. Karimov
Keyword(s):  
Virtual Reality ◽  
Literature Review ◽  
Acute Stroke ◽  
Functional Outcome ◽  
Recovery Process ◽  
Stroke Patients ◽  
Post Stroke ◽  
Stroke Disability ◽  
Comprehensive Rehabilitation ◽  
High Level

Despite significant advances in the treatment and rehabilitation of stroke, level of post-stroke disability remains at a fairly high level. Recent innovative developments in the rehabilitation of these patients provide good results in terms of functional outcome. One of such developments is method of virtual reality (VR), which affects not only the speed and volume of regaining movement, as well as coordination, but also normalizes the psycho-emotional background, increasing the motivation of patients to improve the recovery process. This article provides a literature review of the use of the VR method in the rehabilitation of post-stroke patients, neurophysiological aspects of recovery of lost functions using this method are considered.

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