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Source: Sensors

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Total 332 results found since Jan 2013.

Sensors, Vol. 18, Pages 3322: Gait Symmetry Assessment with a Low Back 3D Accelerometer in Post-Stroke Patients
This study proposes a new gait symmetry index (GSI) to quantify gait symmetry with one 3D accelerometer at L3 (GSIL3). GSIL3 was evaluated with 16 post stroke patients and nine healthy controls in the Six-Minute-Walk-Test (6-MWT). Discriminative power was evaluated with Wilcoxon test and the effect size (ES) was computed with Cliff’s Delta. GSIL3 estimated during the entire 6-MWT and during a short segment straight walk (GSIL3straight) have comparable effect size to one another (ES = 0.89, p < 0.001) and to the symmetry indices derived from feet sensors (|ES| = [0.22, 0.89]). Furthermore, while none of the ind...
Source: Sensors - October 3, 2018 Category: Biotechnology Authors: Wei Zhang Matthew Smuck Catherine Legault Ma A. Ith Amir Muaremi Kamiar Aminian Tags: Article Source Type: research

Sensors, Vol. 19, Pages 1737: Gait Analysis for Post-Stroke Hemiparetic Patient by Multi-Features Fusion Method
In this study, the dynamic time warping (DTW) algorithm, sample entropy method and empirical mode decomposition-based stability index were utilized to obtain the three aforementioned types of gait features, respectively. Studies were conducted with 15 healthy control subjects and 15 post-stroke survivors. Experimental results revealed that the proposed features could significantly differentiate hemiparetic patients from healthy control subjects by a Mann–Whitney test (with a p-value of less than 0.05). Finally, four representative classifiers were utilized in order to evaluate the possible capabilities of the...
Source: Sensors - April 10, 2019 Category: Biotechnology Authors: Mengxuan Li Shanshan Tian Linlin Sun Xi Chen Tags: Article Source Type: research

Sensors, Vol. 19, Pages 2497: Validity of the Walked Distance Estimated by Wearable Devices in Stroke Individuals
Conclusion: This study led to a recommendation of a pedometer worn on the unaffected hip or an Actigraph worn on the unaffected ankle to get a valid estimation of the distance walked by stroke individuals.
Source: Sensors - May 30, 2019 Category: Biotechnology Authors: Maxence Compagnat Charles Sebiyo Batcho Romain David Nicolas Vuillerme Jean Yves Salle Jean Christophe Daviet St éphane Mandigout Tags: Article Source Type: research

Sensors, Vol. 19, Pages 3474: Bilateral Tactile Feedback-Enabled Training for Stroke Survivors Using Microsoft KinectTM
Carlo Menon Rehabilitation and mobility training of post-stroke patients is crucial for their functional recovery. While traditional methods can still help patients, new rehabilitation and mobility training methods are necessary to facilitate better recovery at lower costs. In this work, our objective was to design and develop a rehabilitation training system targeting the functional recovery of post-stroke users with high efficiency. To accomplish this goal, we applied a bilateral training method, which proved to be effective in enhancing motor recovery using tactile feedback for the training. One participant with hem...
Source: Sensors - August 7, 2019 Category: Biotechnology Authors: Abbas Orand Eren Erdal Aksoy Hiroyuki Miyasaka Carolyn Weeks Levy Xin Zhang Carlo Menon Tags: Article Source Type: research

Sensors, Vol. 20, Pages 1221: Wireless Sensing of Lower Lip and Thumb-Index Finger ‘Ramp-and-Hold’ Isometric Force Dynamics in a Small Cohort of Unilateral MCA Stroke: Discussion of Preliminary Findings
Discussion of Preliminary Findings Sensors doi: 10.3390/s20041221 Authors: Steven Barlow Rebecca Custead Jaehoon Lee Mohsen Hozan Jacob Greenwood Automated wireless sensing of force dynamics during a visuomotor control task was used to rapidly assess residual motor function during finger pinch (right and left hand) and lower lip compression in a cohort of seven adult males with chronic, unilateral middle cerebral artery (MCA) stroke with infarct confirmed by anatomic magnetic resonance imaging (MRI). A matched cohort of 25 neurotypical adult males served as controls. Dependent variables were extracted from ...
Source: Sensors - February 22, 2020 Category: Biotechnology Authors: Steven Barlow Rebecca Custead Jaehoon Lee Mohsen Hozan Jacob Greenwood Tags: Article Source Type: research

Sensors, Vol. 20, Pages 2607: A Prototype Microwave System for 3D Brain Stroke Imaging
Francesca Vipiana This work focuses on brain stroke imaging via microwave technology. In particular, the open issue of monitoring patients after stroke onset is addressed here in order to provide clinicians with a tool to control the effectiveness of administered therapies during the follow-up period. In this paper, a novel prototype is presented and characterized. The device is based on a low-complexity architecture which makes use of a minimum number of properly positioned and designed antennas placed on a helmet. It exploits a differential imaging approach and provides 3D images of the stroke. Preliminary experim...
Source: Sensors - May 2, 2020 Category: Biotechnology Authors: Jorge A. Tobon Vasquez Rosa Scapaticci Giovanna Turvani Gennaro Bellizzi David O. Rodriguez-Duarte Nadine Joachimowicz Bernard Duch êne Enrico Tedeschi Mario R. Casu Lorenzo Crocco Francesca Vipiana Tags: Article Source Type: research

Sensors, Vol. 21, Pages 1111: Head-Mounted Display-Based Therapies for Adults Post-Stroke: A Systematic Review and Meta-Analysis
gan Immersive virtual reality techniques have been applied to the rehabilitation of patients after stroke, but evidence of its clinical effectiveness is scarce. The present review aims to find studies that evaluate the effects of immersive virtual reality (VR) therapies intended for motor function rehabilitation compared to conventional rehabilitation in people after stroke and make recommendations for future studies. Data from different databases were searched from inception until October 2020. Studies that investigated the effects of immersive VR interventions on post-stroke adult subjects via a head-mounted display ...
Source: Sensors - February 5, 2021 Category: Biotechnology Authors: Guillermo Palacios-Navarro Neville Hogan Tags: Review Source Type: research

Sensors, Vol. 21, Pages 1806: Development of a Low-Cost, Modular Muscle –Computer Interface for At-Home Telerehabilitation for Chronic Stroke
We describe our modular electromyography acquisition, processing, and feedback algorithms to train differentiated muscle control during at-home therapist-guided sessions. Additionally, we evaluated the performance of low-cost sensors for our training task with two healthy individuals. Finally, we present the results of a case study with a stroke survivor who used the system for 40 sessions over 10 weeks of training. In line with our previous research, our results suggest that using low-cost sensors provides similar results to those using research-grade sensors for low forces during an isometric task. Our preliminary case s...
Source: Sensors - March 5, 2021 Category: Biotechnology Authors: Octavio Marin-Pardo Coralie Phanord Miranda Rennie Donnelly Christopher M. Laine Sook-Lei Liew Tags: Article Source Type: research

Sensors, Vol. 21, Pages 3833: A Novel Muscle Synergy Extraction Method Used for Motor Function Evaluation of Stroke Patients: A Pilot Study
In this study, MCR-ALS was employed to extract muscle synergy from electromyography (EMG) data. Its performance was compared with two other matrix factorization algorithms, NMF and self-modeling mixture analysis (SMMA). Simulated data sets were utilized to explore the influences of the sparseness and noise on the extracted synergies. As a result, the synergies estimated by MCR-ALS were the most similar to true synergies as compared with SMMA and NMF. MCR-ALS was used to analyze the muscle synergy characteristics of upper limb movements performed by healthy (n = 11) and stroke (n = 5) subjects. The repeatability and intra-s...
Source: Sensors - June 1, 2021 Category: Biotechnology Authors: Yehao Ma Changcheng Shi Jialin Xu Sijia Ye Huilin Zhou Guokun Zuo Tags: Article Source Type: research

Sensors, Vol. 21, Pages 6739: Reactive Exercises with Interactive Objects: Interim Analysis of a Randomized Trial on Task-Driven NMES Grasp Rehabilitation for Subacute and Early Chronic Stroke Patients
Conclusions: The S2 system, developed according to shared clinical directives, was tested in a clinical proof of concept. Variations of ARAT scores confirm the feasibility of clinical investigation for hand rehabilitation after stroke.
Source: Sensors - October 11, 2021 Category: Biotechnology Authors: Andrea Crema Ivan Furfaro Flavio Raschell à Mauro Rossini Johannes Zajc Constantin Wiesener Walter Baccinelli Davide Proserpio Andreas Augsten Nancy Immick Sebastian Becker Matthias Weber Thomas Schauer Karsten Krakow Giulio Gasperini Franco Molteni Mich Tags: Article Source Type: research

Sensors, Vol. 21, Pages 7217: A Study of Biofeedback Gait Training in Cerebral Stroke Patients in the Early Recovery Phase with Stance Phase as Target Parameter
vanova Walking function disorders are typical for patients after cerebral stroke. Biofeedback technology (BFB) is currently considered effective and promising for training walking function, including in patients after cerebral stroke. Most studies recognize that BFB training is a promising tool for improving walking function; however, the data on the use of highly selective walking parameters for BFB training are very limited. The aim of our study was to investigate the feasibility of using BFB training targeting one of the basic parameters of gait symmetry—stance phase duration—in cerebral stroke patients in the e...
Source: Sensors - October 29, 2021 Category: Biotechnology Authors: Skvortsov Kaurkin Ivanova Tags: Article Source Type: research

Sensors, Vol. 21, Pages 8323: The Effect of Implanted Functional Electrical Stimulation on Gait Performance in Stroke Survivors: A Systematic Review
Stuart Cogan The emerging literature suggests that implantable functional electrical stimulation may improve gait performance in stroke survivors. However, there is no review providing the possible therapeutic effects of implanted functional electrical stimulation on gait performance in stroke survivors. We performed a web-based, systematic paper search using PubMed, the Cochrane Library, and EMBASE. We limited the search results to human subjects and papers published in peer-reviewed journals in English. We did not restrict demographic or clinical characteristics. We included 10 papers in the current systematic revie...
Source: Sensors - December 13, 2021 Category: Biotechnology Authors: Gu Eon Kang Rebecca Frederick Brandon Nunley Lawrence Lavery Yasin Dhaher Bijan Najafi Stuart Cogan Tags: Review Source Type: research

Sensors, Vol. 22, Pages 2693: Biomechanical Assessment of Post-Stroke Patients & rsquo; Upper Limb before and after Rehabilitation Therapy Based on FES and VR
Sensors, Vol. 22, Pages 2693: Biomechanical Assessment of Post-Stroke Patients’ Upper Limb before and after Rehabilitation Therapy Based on FES and VR Sensors doi: 10.3390/s22072693 Authors: Daniela Montoya Patricio Barria Carlos A. Cifuentes Luis F. Aycardi André Morís Rolando Aguilar José M. Azorín Marcela Múnera Stroke is a medical condition characterized by the rapid loss of focal brain function. Post-stroke patients attend rehabilitation training to prevent the degeneration of physical function and improve upper limb movements and functional status after stroke. Promising rehabilit...
Source: Sensors - March 31, 2022 Category: Biotechnology Authors: Daniela Montoya Patricio Barria Carlos A. Cifuentes Luis F. Aycardi Andr é Morís Rolando Aguilar Jos é M. Azorín Marcela M únera Tags: Article Source Type: research

Sensors, Vol. 22, Pages 3308: User Participatory Design of a Wearable Focal Vibration Device for Home-Based Stroke Rehabilitation
hirley A. James Stroke often leads to the significant impairment of upper limb function and is associated with a decreased quality of life. Despite study results from several interventions for muscle activation and motor coordination, wide-scale adoption remains largely elusive due to under-doses and low user compliance and participation. Recent studies have shown that focal vibration has a greater potential to increase and coordinate muscle recruitment and build muscle strength and endurance. This form of treatment could widely benefit stroke survivors and therapists. Thus, this study aimed to design and develop a nov...
Source: Sensors - April 26, 2022 Category: Biotechnology Authors: Hongwu Wang Mustafa Ghazi Raghuveer Chandrashekhar Josiah Rippetoe Grace A. Duginski Louis V. Lepak Lisa R. Milhan Shirley A. James Tags: Article Source Type: research

Sensors, Vol. 22, Pages 4760: A Novel Non-Invasive Thermometer for Continuous Core Body Temperature: Comparison with Tympanic Temperature in an Acute Stroke Clinical Setting
This study aimed to investigate the use of a novel wireless non-invasive heat flux-based thermometer in acute stroke patients admitted to a stroke unit and compare the measurements with the currently used infrared (IR) tympanic temperature readings. The study encompassed 30 acute ischemic stroke patients who underwent continuous measurement (Tcore) with the novel wearable non-invasive CORE device. Paired measurements of Tcore and tympanic temperature (Ttym) by using a standard IR-device were performed 3–5 times/day, yielding a total of 305 measurements. The predicted core temperatures (Tcore) were significant...
Source: Sensors - June 23, 2022 Category: Biotechnology Authors: Milo š Ajčević Alex Buoite Stella Giovanni Furlanis Paola Caruso Marcello Naccarato Agostino Accardo Paolo Manganotti Tags: Article Source Type: research