Bibliografías temáticas / High density surface electromyographic signals

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Literatura académica sobre el tema "High density surface electromyographic signals"

Autor: Grafiati
Publicado: 25 de mayo de 2024

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Artículos de revistas sobre el tema "High density surface electromyographic signals"

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Marateb, Hamid R., Monica Rojas-Martínez, Marjan Mansourian, Roberto Merletti, and Miguel A. Mañanas Villanueva. "Outlier detection in high-density surface electromyographic signals." Medical & Biological Engineering & Computing 50, no. 1 (2011): 79–89. http://dx.doi.org/10.1007/s11517-011-0790-7.

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Chen, Chen, Shihan Ma, Xinjun Sheng, Dario Farina, and Xiangyang Zhu. "Adaptive Real-Time Identification of Motor Unit Discharges From Non-Stationary High-Density Surface Electromyographic Signals." IEEE Transactions on Biomedical Engineering 67, no. 12 (2020): 3501–9. http://dx.doi.org/10.1109/tbme.2020.2989311.

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Song, Rui, Xu Zhang, Xi Chen, et al. "Decoding silent speech from high-density surface electromyographic data using transformer." Biomedical Signal Processing and Control 80 (February 2023): 104298. http://dx.doi.org/10.1016/j.bspc.2022.104298.

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Li, Yuchang, Hongqing Pan, and Quanjun Song. "ADS1299-Based Array Surface Electromyography Signal Acquisition System." Journal of Physics: Conference Series 2383, no. 1 (2022): 012054. http://dx.doi.org/10.1088/1742-6596/2383/1/012054.

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A multi-channel sEMG signal acquisition system based on the analog front-end chip ADS1299 is designed. The whole acquisition system consists of a 2×9 high-density electrode array, ADS1299 multi-channel high-precision A/D conversion chip; A MCU named STM32F103C8, an upper computer, and PC. We carried out electrode array design, The introduction of the function of the ADS1299 chip, and the circuit design of the analog signal acquisition part. The test results show that the acquisition system designed in this paper can ideally collect the sEMG signal of 8 channels on the back of the hand, which p
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Sleutjes, B. T. H. M., M. De Vos, J. H. Blok, et al. "Motor Unit Tracking Using High Density Surface Electromyography (HDsEMG)." Methods of Information in Medicine 54, no. 03 (2015): 221–26. http://dx.doi.org/10.3414/me13-02-0049.

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SummaryIntroduction: This article is part of the Focus Theme of Methods of Information in Medicine on “Biosignal Interpretation: Advanced Methods for Neural Signals and Images”.Objectives: The study discusses a technique to automatically correct for effects of electrode grid displacement across serial surface EMG measurements with high-density electrode arrays (HDsEMG). The goal is to match motor unit signatures from subsequent measurements and by this, achieve automated motor unit tracking.Methods: Test recordings of voluntary muscle contractions using HDsEMG were performed on three healthy i
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Ibrahim, Ayad Assad, Ikhlas Mahmoud Farhan, and Mohammed Ehasn Safi. "A nonlinearities inverse distance weighting spatial interpolation approach applied to the surface electromyography signal." International Journal of Electrical and Computer Engineering (IJECE) 12, no. 2 (2022): 1530. http://dx.doi.org/10.11591/ijece.v12i2.pp1530-1539.

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Spatial interpolation of a surface electromyography (sEMG) signal from a set of signals recorded from a multi-electrode array is a challenge in biomedical signal processing. Consequently, it could be useful to increase the electrodes' density in detecting the skeletal muscles' motor units under detection's vacancy. This paper used two types of spatial interpolation methods for estimation: Inverse distance weighted (IDW) and Kriging. Furthermore, a new technique is proposed using a modified nonlinearity formula based on IDW. A set of EMG signals recorded from the noninvasive multi-electrode gri
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Xue, Suqi, Farong Gao, Xudong Wu, Qun Xu, Xuecheng Weng, and Qizhong Zhang. "MUNIX repeatability evaluation method based on FastICA demixing." Mathematical Biosciences and Engineering 20, no. 9 (2023): 16362–82. http://dx.doi.org/10.3934/mbe.2023730.

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<abstract> <p>To enhance the reproducibility of motor unit number index (MUNIX) for evaluating neurological disease progression, this paper proposes a negative entropy-based fast independent component analysis (FastICA) demixing method to assess MUNIX reproducibility in the presence of inter-channel mixing of electromyography (EMG) signals acquired by high-density electrodes. First, composite surface EMG (sEMG) signals were obtained using high-density surface electrodes. Second, the FastICA algorithm based on negative entropy was employed to determine the orthogonal projection matr
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Martinez-Valdes, Eduardo, Francesco Negro, Deborah Falla, Alessandro Marco De Nunzio, and Dario Farina. "Surface electromyographic amplitude does not identify differences in neural drive to synergistic muscles." Journal of Applied Physiology 124, no. 4 (2018): 1071–79. http://dx.doi.org/10.1152/japplphysiol.01115.2017.

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Surface electromyographic (EMG) signal amplitude is typically used to compare the neural drive to muscles. We experimentally investigated this association by studying the motor unit (MU) behavior and action potentials in the vastus medialis (VM) and vastus lateralis (VL) muscles. Eighteen participants performed isometric knee extensions at four target torques [10, 30, 50, and 70% of the maximum torque (MVC)] while high-density EMG signals were recorded from the VM and VL. The absolute EMG amplitude was greater for VM than VL ( P < 0.001), whereas the EMG amplitude normalized with respect to
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Gamucci, Fiorenza, Marcello Pallante, Sybille Molle, Enrico Merlo, and Andrea Bertuglia. "A Preliminary Study on the Use of HD-sEMG for the Functional Imaging of Equine Superficial Muscle Activation during Dynamic Mobilization Exercises." Animals 12, no. 6 (2022): 785. http://dx.doi.org/10.3390/ani12060785.

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Superficial skeletal muscle activation is associated with an electric activity. Bidimensional High-Density Surface Electromyography (HD-sEMG) is a non-invasive technique that uses a grid of equally spaced electrodes applied on the skin surface to detect and portray superficial skeletal muscle activation. The goal of the study was to evaluate the feasibility of HD-sEMG to detect electrical activation of skeletal muscle and its application during rehabilitation exercises in horses. To fulfil this aim, activation of the superficial descending pectoral and external abdominal oblique core muscles w
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Hossen, A., G. Deuschl, S. Groppa, U. Heute, and M. Muthuraman. "Discrimination of physiological tremor from pathological tremor using accelerometer and surface EMG signals." Technology and Health Care 28, no. 5 (2020): 461–76. http://dx.doi.org/10.3233/thc-191947.

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BACKGROUND AND OBJECTIVE: Although careful clinical examination and medical history are the most important steps towards a diagnostic separation between different tremors, the electro-physiological analysis of the tremor using accelerometry and electromyography (EMG) of the affected limbs are promising tools. METHODS: A soft-decision wavelet-based decomposition technique is applied with 8 decomposition stages to estimate the power spectral density of accelerometer and surface EMG signals (sEMG) sampled at 800 Hz. A discrimination factor between physiological tremor (PH) and pathological tremor
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Tesis sobre el tema "High density surface electromyographic signals"

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Imrani, Sallak Loubna. "Evaluation of muscle aging using high density surface electromyography." Thesis, Compiègne, 2021. http://www.theses.fr/2021COMP2647.

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Avec le vieillissement de la population, préserver la fonction musculaire est important pour éviter la perte de mobilité et d'autonomie. De nos jours, la prévention de la maladie musculaire, la sarcopénie, est une préoccupation majeure et des facteurs de risque importants tels que l'âge avancé ainsi que des facteurs modifiables, notamment une faible activité physique et une alimentation déséquilibrée ont été identifiés. Compte tenu de la croissance des populations plus âgées et de la diminution de l'activité physique, qui touche également les jeunes citoyens, la sensibilisation à la qualité mu
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Magbonde, Abilé. "Séparation de signaux électromyographiques de surface à haute densité pour la réduction de la diaphonie." Electronic Thesis or Diss., Université Grenoble Alpes, 2024. http://www.theses.fr/2024GRALT008.

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L’utilisation du signal électrique musculaire de surface (EMG) dans une perspective biomécanique, thérapeutique ou pour la commande nécessite une forte sélectivité spatiale des signaux. Pour des muscles contigus, cette contrainte est rarement observée rendant l’utilisation du signal EMG difficile. La diaphonie, ou contamination croisée des signaux, inhérentes aux enregistrements doit alors être supprimée.Cette thèse a pour but de proposer des méthodes pour séparer la diaphonie lorsque les muscles extenseurs de l'index et du petit doigt sont en contraction simultanée. Notre travail consiste alo
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Berro, Soumaya. "Identification of muscle activation schemes by inverse methods applied on HD-sEMG signals." Electronic Thesis or Diss., Compiègne, 2022. http://www.theses.fr/2022COMP2708.

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L'identification rapide ou en temps réel de l'activation spatio-temporelle des unités motrices (UM) qui représentent les unités fonctionnelles du système neuromusculaire est fondamentale dans les applications de contrôle des prothèses et en réhabilitation fonctionnelle. Cependant, cette procédure demande un temps de calcul énorme. Par conséquent, le travail de cette thèse a été consacré à fournir un algorithme permettant l'identification en temps réel des stratégies d'activation spatiale et temporelle des UMs en appliquant des méthodes inverses sur les signaux HD-sEMG (électromyogramme de surf
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Capítulos de libros sobre el tema "High density surface electromyographic signals"

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Oliveira, I. S., M. A. Favretto, S. Cossul, and J. L. B. Marques. "Development of a Matlab-Based Graphical User Interface for Analysis of High-Density Surface Electromyography Signals." In XXVII Brazilian Congress on Biomedical Engineering. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-70601-2_267.

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Okada, Yoshio. "Physiological Bases of Magnetoencephalography and Electroencephalography." In Fifty Years of Magnetoencephalography. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780190935689.003.0004.

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Understanding the physiological bases of magnetoencephalography (MEG) and electroencephalography (EEG) provides the foundation for developing these techniques as tools for studying human brain functions because this information can serve as a guide for planning experimental studies and for interpreting the data. During the past 50 years, the concept of electrophysiology of neurons has been profoundly modified as new types of active conductance have been discovered in the dendrites and soma. The biophysical models of individual neurons and neuronal networks developed within the framework of modern electrophysiology have provided quantitatively accurate accounts of evoked magnetic fields, extracellular potentials, and intracellular potentials in principal neurons in the tissues within a single theoretical framework. These results are consistent with the conclusion that intracellular currents in active tissues produce both MEG and EEG signals in the cerebellum, hippocampus, and cerebral cortex. We now know that the calcium and potassium currents are the major currents shaping the waveforms of MEG and EEG and that the sodium and potassium currents generate the spikes and high-frequency signals detectable outside the brain. The current dipole moment density, defined as current dipole moment per unit surface area of the active cortex, is governed by the intracellular volume fraction and basic kinetics of the active conductances. This quantity, which is conserved across the evolutionary scale ranging from reptiles to humans, may serve as a useful physiological constraint in interpreting MEG and EEG signals. It is hoped that this foundation will help advance the research on human brain functions.
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Boudriki Semlali, Badr-Eddine, Carlos Molina, Mireia Carvajal Librado, Hyuk Park, and Adriano Camps. "Potential Earthquake Proxies from Remote Sensing Data." In New Insights on Disaster Risk Reduction [Working Title]. IntechOpen, 2024. http://dx.doi.org/10.5772/intechopen.1005382.

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At present, there is no clear scientific evidence of reliable earthquake precursors that can be used as an early warning system. However, many studies have also reported the existence of faint signatures that appear to be coupled to the occurrence of earthquakes. These anomalies have traditionally been detected using data from in-situ sensors near high-seismicity regions. On the other hand, remote sensors offer the potential of large spatial coverage and frequent revisit time, allowing the observation of remote areas such as deserts, mountains, polar caps, or the ocean. This chapter revises the state-of-the-art of the understanding of lithosphere–atmosphere–ionosphere coupling. It also presents recent studies by the authors’ ongoing investigation on short-to-midterm earthquake precursors. The Earth observation variables discussed are (1) surface temperature anomalies from thermal infrared or microwave radiometer measurements, (2) atmospheric signatures, (3) ionospheric total electron density fluctuations or scintillation measured from GNSS signals, and (4) other geophysical variables, including geomagnetic field fluctuations, changes in the Schumann resonance frequency, or low-frequency electromagnetic radiation. However, despite the seismic hazard risk models that exist and the results shown by these studies, it is still very difficult to predict the occurrence of earthquakes.
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Actas de conferencias sobre el tema "High density surface electromyographic signals"

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Marateb, H. R., M. Rojas-Martinez, M. A. Mananas Villanueva, and R. Merletti. "Robust outlier detection in high-density surface electromyographic signals." In 2010 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2010). IEEE, 2010. http://dx.doi.org/10.1109/iembs.2010.5627280.

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Ilg, Julian, Lukas Hinderer, Konstantin Struebig, and Tim C. Lueth. "A Sensor-Integrated Textile for the Acquisition of Upper Extremity Electromyographic Signals." In ASME 2023 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/imece2023-112239.

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Abstract This paper presents a novel sensor-integrated wearable textile for the acquisition of upper extremity (UE) electromyographic (EMG) signals. The device utilizes dry high-density electrodes that are non-invasive, comfortable to wear, and do not require exact positioning over the respective muscles due to the high number and density of electrodes. The wearable EMG-textile was designed for ease of use and can be easily donned and doffed by the user. The authors tested the device on a group of 10 participants to recognize hand gestures via the acquired EMG signals. To enable gesture recogn
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Montazerin, Mansooreh, Soheil Zabihi, Elahe Rahimian, Arash Mohammadi, and Farnoosh Naderkhani. "ViT-HGR: Vision Transformer-based Hand Gesture Recognition from High Density Surface EMG Signals." In 2022 44th Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC). IEEE, 2022. http://dx.doi.org/10.1109/embc48229.2022.9871489.

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Vo-Dinh, T., and D. L. Stokes. "SERODS: A New Principle for High-Density Optical Data Storage." In Optical Data Storage. Optica Publishing Group, 1994. http://dx.doi.org/10.1364/ods.1994.tud1.

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SERODS is a new technology for high-density optical disk storage based on the surface-enhanced Raman effect.(1) The SERODS technology is based on the principle that the enhanced light-emitting properties of certain molecules embedded in an optical medium can be altered at the molecular level to store information. When they are close to a rough metal surface, certain molecules emit a strongly enhanced light called surface-enhance Raman light which is characteristic of their vibrations. Normal Raman signals are generally very weak and cannot be easily detected. The enhanced emission is due to th
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Gibson, Alison E., Mark R. Ison, and Panagiotis Artemiadis. "User-Independent Hand Motion Classification With Electromyography." In ASME 2013 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/dscc2013-3832.

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Electromyographic (EMG) processing is an important research area with direct applications to prosthetics, exoskeletons and human-machine interaction. Current state of the art decoding methods require intensive training on a single user before it can be utilized, and have been unable to achieve both user-independence and real-time performance. This paper presents a real-time EMG classification method which generalizes across users without requiring an additional training phase. An EMG-embedded sleeve quickly positions and records from EMG surface electrodes on six forearm muscles. An optimized
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Ogawa, Kuniyasu, Yasuo Yokouchi, Tomoyuki Haishi, and Kohei Ito. "Measurement of Current-Density in PEFC With NMR Sensors." In ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajtec2011-44370.

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In order to improve the power generation performance of polymer electrolyte fuel cells (PEFC), it is necessary to maintain high current density over the whole area of the membrane electrode assembly (MEA) that includes the additional Pt-carbon particles loaded on the Polymer Electrolyte Membrane (PEM) as an electrocatalyst layer. However, the current density generated at the MEA is distributed unevenly due to a lack of hydrogen, flooding, and so on. Therefore, achieving a higher current density in a PEFC requires monitoring the local current density. The local current density in a PEFC can be
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Caslaru, R., Y. B. Guo, and X. T. Wei. "Fabrication and Tribological Functions of Micro Dent Arrays on Ti-6Al-4V Surface by Laser Shock Peening." In ASME 2014 International Manufacturing Science and Engineering Conference collocated with the JSME 2014 International Conference on Materials and Processing and the 42nd North American Manufacturing Research Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/msec2014-4067.

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Surface patterning has become a valuable technique for fabricating micro dents which may act as lubricant reservoirs to reduce friction and wear in sliding and rolling contact applications. In this paper, the use of laser shock peening (LSP) along with an automatic X-Y table proves to be an attractive and reliable method for producing micro dent arrays with enhanced surface integrity. Surface topography and profiles of the fabricated micro dent arrays on polished Ti-6Al-4V have been characterized. The effect of dent arrays with different density on friction reduction at low and high viscosity
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Du, Fenglei, Greg Bridges, D. J. Thomson, Rama R. Goruganthu, Shawn McBride, and Mike Santana. "Enhancements of Non-contact Measurements of Electrical Waveforms on the Proximity of a Signal Surface Using Groups of Pulses." In ISTFA 2002. ASM International, 2002. http://dx.doi.org/10.31399/asm.cp.istfa2002p0483.

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Abstract With the ever-increasing density and performance of integrated circuits, non-invasive, accurate, and high spatial and temporal resolution electric signal measurement instruments hold the key to performing successful diagnostics and failure analysis. Sampled electrostatic force microscopy (EFM) has the potential for such applications. It provides a noninvasive approach to measuring high frequency internal integrated circuit signals. Previous EFMs operate using a repetitive single-pulse sampling approach and are inherently subject to the signal-to-noise ratio (SNR) problems when test pa
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Clapham, Lynann, and Vijay Babbar. "Effects of Detector Dynamics on Magnetic Flux Leakage Signals From Dents and Gouges." In 2012 9th International Pipeline Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/ipc2012-90551.

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The current study was designed to model the dynamic effects of detector ride and magnet liftoff on Magnetic Flux Leakage (MFL) signals from dents as well as gouges that have significant denting. The MFL tools have long been used for the detection and sizing of corrosion defects. This is comparatively straightforward for a number of reasons, one of which is that the MFL detector assembly can ride relatively smoothly along the inner pipe wall surface. This is not the case when significant denting is present, since the dent presents a perturbation in the pipe wall that can cause liftoff of the de
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Pahuja, Rishi, and M. Ramulu. "In-Situ Monitoring in Abrasive Water Jet Machining of Stacked Titanium (Ti6Al4V)-CFRP Through Time and Frequency Analysis of Acoustic Emission Signals." In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-73396.

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Abstract Hybrid metal-composite structures are widely used in aerospace industry but the machining challenges, especially at high cutting speeds, limit their employability due to higher production costs and tool wear. Abrasive Water jet (AWJ) is a viable high speed alternative, to conventional milling but the process is limited by the kerf roughness and striations, burrs and delamination. Due to difference in machining behavior of ductile metal and brittle composite, the resulting surface quality is sensitive to the use of non-optimal process parameters, and in-process faults and defects. This
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