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Total 601 results found since Jan 2013.

Sensors, Vol. 23, Pages 1712: Immersive Virtual Reality in Post-Stroke Rehabilitation: A Systematic Review
This study aims to investigate the efficacy of FIVR in stroke rehabilitation. PubMed, Web of Science and Scopus were screened up to November 2022 to identify eligible randomized controlled trials (RCTs). Out of 4623, we included 12 RCTs involving post-acute and chronic stroke survivors, with a total of 350 patients (234 men and 115 women; mean age 58.36 years). High heterogeneity of the outcomes considered, the results showed that FIVR provides additional benefits, in comparison with standard rehabilitation. In particular, results showed an improvement in upper limb dexterity, gait performance and dynamic balance, influenc...
Source: Sensors - February 3, 2023 Category: Biotechnology Authors: Andrea Demeco Laura Zola Antonio Frizziero Chiara Martini Arrigo Palumbo Ruben Foresti Giovanni Buccino Cosimo Costantino Tags: Review Source Type: research

Sensors, Vol. 23, Pages 3889: EEG Signal Complexity Measurements to Enhance BCI-Based Stroke Patients & rsquo; Rehabilitation
This study used the proposed motor imagery (MI) framework to analyze the electroencephalogram (EEG) dataset from eight subjects in order to enhance the MI-based BCI systems for stroke patients. The preprocessing portion of the framework comprises the use of conventional filters and the independent component analysis (ICA) denoising approach. Fractal dimension (FD) and Hurst exponent (Hur) were then calculated as complexity features, and Tsallis entropy (TsEn) and dispersion entropy (DispEn) were assessed as irregularity parameters. The MI-based BCI features were then statistically retrieved from each participant using two-...
Source: Sensors - April 11, 2023 Category: Biotechnology Authors: Noor Kamal Al-Qazzaz Alaa A. Aldoori Sawal Hamid Bin Mohd Ali Siti Anom Ahmad Ahmed Kazem Mohammed Mustafa Ibrahim Mohyee Tags: Article Source Type: research

Sensors, Vol. 23, Pages 7320: Surface-Electromyography-Based Co-Contraction Index for Monitoring Upper Limb Improvements in Post-Stroke Rehabilitation: A Pilot Randomized Controlled Trial Secondary Analysis
Tiziana Lencioni Persons post-stroke experience excessive muscle co-contraction, and consequently the arm functions are compromised during the activities of daily living. Therefore, identifying instrumental outcome measures able to detect the motor strategy adopted after a stroke is a primary clinical goal. Accordingly, this study aims at verifying whether the surface electromyography (sEMG)-based co-contraction index (CCI) could be a new clinically feasible approach for assessing and monitoring patients’ motor performance. Thirty-four persons post-stroke underwent clinical assessment and upper extremity...
Source: Sensors - August 22, 2023 Category: Biotechnology Authors: Virginia Bandini Ilaria Carpinella Alberto Marzegan Johanna Jonsdottir Carlo Albino Frigo Laura Avanzino Elisa Pelosin Maurizio Ferrarin Tiziana Lencioni Tags: Article Source Type: research

Molecular dynamics simulation for the reversed power stroke motion of a myosin subfragment-1.
Abstract Myosins are typical molecular motor proteins that convert the chemical energy from the ATP hydrolysis into mechanical work. The fundamental mechanism of this energy conversion is still unknown. To explain the experimental results already obtained, Masuda has proposed a hypothesis called the "Driven by Detachment" theory for the working principle of the myosins. This theory insists that the energy used during the power stroke of the myosins does not directly originate from the chemical energy of ATP, but is converted from the elastic energy within the molecule at the joint between the head and neck domains...
Source: Biosystems - April 9, 2015 Category: Biotechnology Authors: Masuda T Tags: Biosystems Source Type: research

Hydrogels for brain repair after stroke: an emerging treatment option.
Abstract Stroke disability is the only major disease without an effective treatment. The substantial clinical burden of stroke in disabled survivors and the lack of a medical therapy that promotes recovery provide an opportunity to explore the use of biomaterials to promote brain repair after stroke. Hydrogels can be injected as a liquid and solidify in situ to form a gelatinous solid with similar mechanical properties to the brain. These biomaterials have been recently explored to generate pro-repair environments within the damaged organ. This review highlights the clinical problem of stroke treatment and discuss...
Source: Current Opinion in Biotechnology - May 5, 2016 Category: Biotechnology Authors: Nih LR, Carmichael ST, Segura T Tags: Curr Opin Biotechnol Source Type: research

Characterization of biomarkers in stroke based on ego-networks and pathways.
CONCLUSIONS: Seven ego-networks were constructed using EgoNet and two significant enriched by pathways were identified. These may provide new insights into the potential biomarkers for the development of stroke. PMID: 28875412 [PubMed - as supplied by publisher]
Source: Biotechnology Letters - September 5, 2017 Category: Biotechnology Authors: Li H, Guo Q Tags: Biotechnol Lett Source Type: research

Sensors, Vol. 18, Pages 17: Design and Development of a Wearable Device for Heat Stroke Detection
Yen Hsu Heat stroke can be potentially damaging for people while exercising in hot environments. To prevent this dangerous situation, we designed a wearable heat-stroke-detection device (WHDD) with early notification ability. First, we used several physical sensors, such as galvanic skin response (GSR), heart beat, and body temperature, to acquire medical data from exercising people. In addition, we designed risk evaluation functional components that were based on fuzzy theory to detect the features of heat stroke for users. If a dangerous situation is detected, then the device will activate the alert function to remin...
Source: Sensors - December 22, 2017 Category: Biotechnology Authors: Sheng-Tao Chen Shin-Sung Lin Chein-Wu Lan Hao-Yen Hsu Tags: Article Source Type: research

Sensors, Vol. 18, Pages 2167: The Accuracy of the Detection of Body Postures and Movements Using a Physical Activity Monitor in People after a Stroke
Conclusions: The Activ8 is sufficiently accurate in detecting different classes of body postures and movements of people after a stroke during basic activities and daily-life activities in a laboratory and/or at home.
Source: Sensors - July 5, 2018 Category: Biotechnology Authors: Malou H. J. Fanchamps Herwin L. D. Horemans Gerard M. Ribbers Henk J. Stam Johannes B. J. Bussmann Tags: Article Source Type: research

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

Effects of Repetitive Peripheral Magnetic Stimulation on Shoulder Subluxations Caused by Stroke: A Preliminary Study
ConclusionsRepetitive peripheral magnetic stimulation effectively reduced shoulder subluxations and shoulder pain caused by stroke and improved voluntary upper ‐limb movements in stroke patients.
Source: Neuromodulation: Technology at the Neural Interface - November 4, 2019 Category: Biotechnology Authors: Kenta Fujimura, Hitoshi Kagaya, Chiharu Endou, Akihito Ishihara, Kozue Nishigaya, Kana Muroguchi, Hiroki Tanikawa, Masayuki Yamada, Yoshikiyo Kanada, Eiichi Saitoh Tags: Clinical Research 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