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Total 332 results found since Jan 2013.

Sensors, Vol. 19, Pages 3950: Preliminary Clinical Application of Textile Insole Sensor for Hemiparetic Gait Pattern Analysis
This study developed a 10-channeled textile capacitive pressure sensing insole (TCPSI) with a real-time monitoring system and tested its performance through hemiparetic gait pattern analysis. Thirty-five subjects (18 hemiparetic, 17 healthy) walked down a 40-m long corridor at a comfortable speed while wearing TCPSI inside the shoe. For gait analysis, the percentage of the plantar pressure difference (PPD), the step count, the stride time, the coefficient of variation, and the phase coordination index (PCI) were used. The results of the stroke patients showed a threefold higher PPD, a higher step count (41.61 &plus...
Source: Sensors - September 11, 2019 Category: Biotechnology Authors: Wang Kim Shin Min Tags: Article Source Type: research

Sensors, Vol. 19, Pages 3486: Logarithmic Strain Model for Nonlinear Load Cell
Lee General load cells have typically constant sensitivity throughout the measurement range, which is acceptable for common force measurement systems. However, it is not adequate for high-performance control and high-stroke applications such as robotic systems. It is required to have a higher sensitivity in a small force range than that in a large force range. In contrast, for large loading force, it is more important to increase the measurement range than the sensitivity. To cope with these characteristics, the strain curve versus the force measurement should be derived as a logarithmic graph. To implement this nonlin...
Source: Sensors - August 8, 2019 Category: Biotechnology Authors: Young-Dae Hong Bumjoo Lee Tags: Communication Source Type: research

Sensors, Vol. 19, Pages 3482: 3D Simulations of Intracerebral Hemorrhage Detection Using Broadband Microwave Technology
Persson Early, preferably prehospital, detection of intracranial bleeding after trauma or stroke would dramatically improve the acute care of these large patient groups. In this paper, we use simulated microwave transmission data to investigate the performance of a machine learning classification algorithm based on subspace distances for the detection of intracranial bleeding. A computational model, consisting of realistic human head models of patients with bleeding, as well as healthy subjects, was inserted in an antenna array model. The Finite-Difference Time-Domain (FDTD) method was then used to generate simulated t...
Source: Sensors - August 8, 2019 Category: Biotechnology Authors: Andreas Fhager Stefan Candefjord Mikael Elam Mikael Persson 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. 19, Pages 3238: IoT-Based Home Monitoring: Supporting Practitioners ’ Assessment by Behavioral Analysis
Sensors, Vol. 19, Pages 3238: IoT-Based Home Monitoring: Supporting Practitioners’ Assessment by Behavioral Analysis Sensors doi: 10.3390/s19143238 Authors: Niccolò Mora Ferdinando Grossi Dario Russo Paolo Barsocchi Rui Hu Thomas Brunschwiler Bruno Michel Francesca Cocchi Enrico Montanari Stefano Nunziata Guido Matrella Paolo Ciampolini This paper introduces technical solutions devised to support the Deployment Site - Regione Emilia Romagna (DS-RER) of the ACTIVAGE project. The ACTIVAGE project aims at promoting IoT (Internet of Things)-based solutions for Active and Healthy ageing. DS-RER ...
Source: Sensors - July 22, 2019 Category: Biotechnology Authors: Niccol ò Mora Ferdinando Grossi Dario Russo Paolo Barsocchi Rui Hu Thomas Brunschwiler Bruno Michel Francesca Cocchi Enrico Montanari Stefano Nunziata Guido Matrella Paolo Ciampolini Tags: Article Source Type: research

Sensors, Vol. 19, Pages 3172: Real-Time Classification of Diesel Marine Engine Loads Using Machine Learning
Kwon An engine control system is responsible for controlling the combustion parameters of an internal combustion engine to increase the efficiency of the engine. An optimized parameter setting of an engine control system is highly influenced by the engine load. Therefore, with a change in engine load, the parameter settings need to be updated for higher engine efficiency. Hence, to optimize parameter settings during operation, engine load information is necessary. In this paper, we propose a real-time engine load classification from sensed signals. For the classification, an artificial neural network is used and train...
Source: Sensors - July 17, 2019 Category: Biotechnology Authors: Syed Maaz Shahid Sunghoon Ko Sungoh Kwon Tags: Article Source Type: research

Sensors, Vol. 19, Pages 3137: Development of an Embedded Myokinetic Prosthetic Hand Controller
ipriani The quest for an intuitive and physiologically appropriate human machine interface for the control of dexterous prostheses is far from being completed. In the last decade, much effort has been dedicated to explore innovative control strategies based on the electrical signals generated by the muscles during contraction. In contrast, a novel approach, dubbed myokinetic interface, derives the control signals from the localization of multiple magnetic markers (MMs) directly implanted into the residual muscles of the amputee. Building on this idea, here we present an embedded system based on 32 magnetic field sensor...
Source: Sensors - July 16, 2019 Category: Biotechnology Authors: Francesco Clemente Valerio Ianniciello Marta Gherardini Christian Cipriani Tags: Article Source Type: research

Sensors, Vol. 19, Pages 2922: Unobtrusive Estimation of Cardiovascular Parameters with Limb Ballistocardiography
This study investigates the potential of the limb ballistocardiogram (BCG) for unobtrusive estimation of cardiovascular (CV) parameters. In conjunction with the reference CV parameters (including diastolic, pulse, and systolic pressures, stroke volume, cardiac output, and total peripheral resistance), an upper-limb BCG based on an accelerometer embedded in a wearable armband and a lower-limb BCG based on a strain gauge embedded in a weighing scale were instrumented simultaneously with a finger photoplethysmogram (PPG). To standardize the analysis, the more convenient yet unconventional armband BCG was transformed into the ...
Source: Sensors - June 30, 2019 Category: Biotechnology Authors: Yang Yao Sungtae Shin Azin Mousavi Chang-Sei Kim Lisheng Xu Ramakrishna Mukkamala Jin-Oh Hahn Tags: Article Source Type: research

Sensors, Vol. 19, Pages 2573: Cerebral Small Vessel Disease Biomarkers Detection on MRI-Sensor-Based Image and Deep Learning
-Chun Hsieh Magnetic resonance imaging (MRI) offers the most detailed brain structure image available today; it can identify tiny lesions or cerebral cortical abnormalities. The primary purpose of the procedure is to confirm whether there is structural variation that causes epilepsy, such as hippocampal sclerotherapy, local cerebral cortical dysplasia, and cavernous hemangioma. Cerebrovascular disease, the second most common factor of death in the world, is also the fourth leading cause of death in Taiwan, with cerebrovascular disease having the highest rate of stroke. Among the most common are large vascular atheroscl...
Source: Sensors - June 5, 2019 Category: Biotechnology Authors: Yi-Zeng Hsieh Yu-Cin Luo Chen Pan Mu-Chun Su Chi-Jen Chen Kevin Li-Chun Hsieh Tags: Article Source Type: research

Sensors, Vol. 19, Pages 2533: Point-of-Care Surface Plasmon Resonance Biosensor for Stroke Biomarkers NT-proBNP and S100 β Using a Functionalized Gold Chip with Specific Antibody
In this study, a functionalized specific SPR chip was designed and used in a novel point-of-care SPR module (PhotonicSys SPR H5) for the detection of the stroke biomarkers NT-proBNP and S100β. These biomarkers have proven to be good for stroke diagnosis, with sensitivity and specificity of >85%. Specific detection was done by binding a biomolecular-recognizing antibody onto the Au SPR-chip. Detection was tested in water and plasma samples. NT-proBNP and S100β were detected in a range of concentrations for stroke, from 0.1 ng/mL to 10 ng/mL. The RI of the blank plasma samples was 1.36241...
Source: Sensors - June 2, 2019 Category: Biotechnology Authors: Dorin Harpaz Brescia Koh Robert S. Marks Raymond C.S. Seet Ibrahim Abdulhalim Alfred I.Y. Tok 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 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 1272: A Multi-Module Electrodynamic Exciter with a Variable Pole-Arc Ratio Disk Halbach Array for a High-Bandwidth Dynamic Torsional Stiffness Test
g Xin Luo In this paper, a multi-module electrodynamic exciter based on moving-magnet disk voice coil motor is presented to meet the demands of high torque and high bandwidth in a dynamic torsional stiffness test. A variable pole-arc ratio disk Halbach array (VPAR-DHA) is proposed, so that both high torque density and low rotor inertia can be obtained through enhancing the magnetic field in the working range. The analytical quasi-3-D model of VPAR-DHA was set up by using the harmonic function method, with the consideration of end-effects by a correction function. Electromagnetic structure optimization was carried out...
Source: Sensors - March 12, 2019 Category: Biotechnology Authors: Fang Yuan Lizhan Zeng Xuedong Chen Chengyuan Liang Xiaojun Ding Xin Luo Tags: Article Source Type: research

Sensors, Vol. 19, Pages 1224: Low-Cost Tracking Systems Allow Fine Biomechanical Evaluation of Upper-Limb Daily-Life Gestures in Healthy People and Post-Stroke Patients
satti Since the release of the first Kinect in 2011, low-cost technologies for upper-limb evaluation has been employed frequently for rehabilitation purposes. However, a limited number of studies have assessed the potential of the Kinect V2 for motor evaluations. In this paper, a simple biomechanical protocol has been developed, in order to assess the performances of healthy people and patients, during daily-life reaching movements, with focus on some of the patients’ common compensatory strategies. The assessment considers shoulder range of motion, elbow range of motion, trunk compensatory strategies, an...
Source: Sensors - March 10, 2019 Category: Biotechnology Authors: Alessandro Scano Franco Molteni Lorenzo Molinari Tosatti Tags: Article Source Type: research

Sensors, Vol. 19, Pages 657: The Use of Wearable Sensors for the Movement Assessment on Muscle Contraction Sequences in Post-Stroke Patients during Sit-to-Stand
n-Nien Chou Electromyography (EMG) sensors have been used to study the sequence of muscle contractions during sit-to-stand (STS) in post-stroke patients. However, the majority of the studies used wired sensors with a limited number of placements. Using the latest improved wearable technology with 16 sensors, the current study was a thorough investigation to evaluate the contraction sequences of eight key muscles on the trunk and bilateral limbs during STS in post-stroke patients, as it became feasible. Multiple wearable sensors for the detection of muscle contraction sequences showed that the post-stroke patients perfo...
Source: Sensors - February 6, 2019 Category: Biotechnology Authors: Wei-Chun Hsu Chao-Chin Chang Yi-Jia Lin Fu-Chi Yang Li-Fong Lin Kuan-Nien Chou Tags: Article Source Type: research