Готові списки джерел за темами / Electromyographie de surface (sEMG) / Дисертації
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Дисертації з теми "Electromyographie de surface (sEMG)"

Автор: Grafiati
Опубліковано: 13 квітня 2024

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1

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

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Анотація:
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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2

Douania, Inès. "Multi-scales, multi-physics personalized HD-sEMG model for the evaluation of skeletal muscle aging." Electronic Thesis or Diss., Compiègne, 2022. http://www.theses.fr/2022COMP2679.

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Анотація:
Le vieillissement musculaire, en tant qu'entité pathologique, est connu sous le nom de sarcopénie. Il est défini comme une réduction de la force musculaire accompagnée d'une perte de masse musculaire et d'un déclin des fonctions physiques. Les méthodologies actuellement utilisées en pratique clinique pour évaluer cette maladie liée au vieillissement sont plutôt limitées pour saisir les caractéristiques de ce déclin à l'échelle macroscopique: mesure de la force et de la masse musculaire. Cependant, diagnostiquer la sarcopénie en mesurant uniquement ces deux paramètres n'est pas assez précis et
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3

Zanghieri, Marcello. "sEMG-based hand gesture recognition with deep learning." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/18112/.

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Анотація:
Hand gesture recognition based on surface electromyographic (sEMG) signals is a promising approach for the development of Human-Machine Interfaces (HMIs) with a natural control, such as intuitive robot interfaces or poly-articulated prostheses. However, real-world applications are limited by reliability problems due to motion artifacts, postural and temporal variability, and sensor re-positioning. This master thesis is the first application of deep learning on the Unibo-INAIL dataset, the first public sEMG dataset exploring the variability between subjects, sessions and arm postures, by colle
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4

AFSHARIPOUR, BABAK. "Estimation of load sharing among muscles acting on the same joint and Applications of surface electromyography." Doctoral thesis, Politecnico di Torino, 2014. http://hdl.handle.net/11583/2535698.

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Анотація:
The force produced by a specific muscle cannot be measured and what is measured is the total force provided by all the active muscles acting on a joint, including agonists and antagonists. The first part of this work (chapter 3) addresses the issue of load sharing by proposing two possible approaches and testing them. The second part (chapter 4 and 5) addresses two applications of surface EMG focusing on the study of a) muscle relaxation associated to Yoga sessions and b) the activation of muscle of the back and shoulder of musicians playing string instruments (violin, viola and cello). In bot
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5

BEGNONI, GIACOMO. "ELECTROMYOGRAPHIC EVALUATION OF THE EFFICACY OF MYOFUNCTIONAL THERAPY IN PATIENTS WITH ATYPICAL SWALLOWING." Doctoral thesis, Università degli Studi di Milano, 2018. http://hdl.handle.net/2434/618978.

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Анотація:
ABSTRACT Objectives: Swallowing is a complex physiologic function developing mostly in the first years of life. After 6 years old, if a complete maturation is not achieved, swallowing persists as “atypical swallowing” (AS). The therapy provided to re-educate this dysfunction is based on the myofunctional treatment (MFT). The aim of this study was to detect functional (electromyographical) and clinical (orofacial muscular evaluation with score (OMEs) protocol) effects of MFT in a group of patients with AS so to highlight any differences in the muscular activation pattern and muscular orofa
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6

Zhao, Yuchen. "Human skill capturing and modelling using wearable devices." Thesis, Loughborough University, 2017. https://dspace.lboro.ac.uk/2134/27613.

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Анотація:
Industrial robots are delivering more and more manipulation services in manufacturing. However, when the task is complex, it is difficult to programme a robot to fulfil all the requirements because even a relatively simple task such as a peg-in-hole insertion contains many uncertainties, e.g. clearance, initial grasping position and insertion path. Humans, on the other hand, can deal with these variations using their vision and haptic feedback. Although humans can adapt to uncertainties easily, most of the time, the skilled based performances that relate to their tacit knowledge cannot be easi
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7

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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Анотація:
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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8

Naik, Ganesh Ramachandra, and ganesh naik@rmit edu au. "Iterative issues of ICA, quality of separation and number of sources: a study for biosignal applications." RMIT University. Electrical and Computer Engineering, 2009. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20090320.115103.

Повний текст джерела
Анотація:
This thesis has evaluated the use of Independent Component Analysis (ICA) on Surface Electromyography (sEMG), focusing on the biosignal applications. This research has identified and addressed the following four issues related to the use of ICA for biosignals: • The iterative nature of ICA • The order and magnitude ambiguity problems of ICA • Estimation of number of sources based on dependency and independency nature of the signals • Source separation for non-quadratic ICA (undercomplete and overcomplete) This research first establishes the applicability of ICA for sEMG and als
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9

Lienhard, Karin. "Effet de l'exercice physique par vibration du corps entier sur l'activité musculaire des membres inférieurs : approche méthodologique et applications pratiques." Thesis, Nice, 2014. http://www.theses.fr/2014NICE4080/document.

Повний текст джерела
Анотація:
L’objectif de cette thèse a été d’analyser l’effet de l’exercice physique réalisé sur plateforme vibrante (whole-body vibration, WBV) sur l’activité musculaire des membres inférieurs, de développer des outils d’analyse méthodologiques et de proposer des recommandations pratiques d’utilisation. Deux études méthodologiques ont été menées pour identifier la méthode optimale permettant de traiter les signaux d'électromyographie de surface (sEMG) recueillis pendant la vibration et d'analyser l'influence de la méthode de normalisation de l'activité sEMG. Une troisième étude visait à mieux comprendre
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10

LION, BREUIL VALERIE. "Apport de l'etude de l'activite electrique musculaire de surface a l'aide d'un materiel portable au cours de tests d'effort chez le sportif." Amiens, 1991. http://www.theses.fr/1991AMIEM116.

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11

Clayton, Zane. "Hamstring activation in variants of the Romanian Deadlift: A functional Mri and surface EMG study." Thesis, Queensland University of Technology, 2021. https://eprints.qut.edu.au/208155/1/Zane_Clayton_Thesis.pdf.

Повний текст джерела
Анотація:
Hamstring strain injuries continue to be expensive and time consuming for running based sports. Of the hamstring group, the biceps femoris long head is the most often injured. To date, hamstring injury rehabilitation and prevention methods have focussed predominantly on knee flexion exercises, despite the fact that hip extension exercises better activate this muscle. The aim of this thesis was to compare hamstring activation during variants of the hip extension based Romanian deadlift, to explore the patterns of hamstring and other hip extensor muscle activation. Data from this thesis can be u
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12

Tognella, Frederic. "Interet de l'analyse spectrale du signal myoelectrique de surface chez l'homme : application a un test dynamique d'aptitude physique." Amiens, 1990. http://www.theses.fr/1990AMIEM122.

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13

Robert, Céline. "Etude de la locomotion du cheval au trot par electromyographie de surface et cinematique." Paris 11, 2000. http://www.theses.fr/2000PA112329.

Повний текст джерела
Анотація:
L'objectif de cette these est de decrire la locomotion du cheval au trot grace a l'utilisation conjointe de l'electromyographie de surface, de l'accelerometrie et de la cinematique. L'introduction propose une revue des differentes methodes d'etude de la locomotion employees chez le cheval. La deuxieme partie demontre que l'electromyographie de surface peut etre utilisee sans difficultes majeures chez cet animal. Son association avec la cinematique articulaire permet de determiner le plan d'activation et la fonction de la plupart des plus volumineux muscles superficiels du tronc et des membres.
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14

Cao, H. "Modélisation et évaluation expérimentale de la relation entre le signal EMG de surface et la force musculaire." Phd thesis, Université de Technologie de Compiègne, 2010. http://tel.archives-ouvertes.fr/tel-00460446.

Повний текст джерела
Анотація:
L'estimation de la force générée par un muscle est importante dans les études biomécaniques et pour les applications cliniques. Puisque cette force ne peut pas être mesurée directement, le signal électromyographique de surface (SEMG), reflétant le niveau d'activation musculaire, est utilisé pour quantifier la force développée. Cependant, tous les facteurs, contrôlant une contraction isométrique, n'influencent pas la force et le SEMG simultanément. Le but de ce travail de thèse est donc de développer un modèle de simulation conjointe du SEMG et de la force, afin d'étudier la relation EMG-force.
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15

Aresu, Federica. "Comparison of high density and bipolar surface EMG for ankle joint kinetics using machine learning." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-294473.

Повний текст джерела
Анотація:
The relationship between sEMG signals and muscle force, and associated joint torque, is an object of study for clinical applications such as rehabilitation robotics and commercial applications as wearable motion control devices. The information type and quality obtained by sEMG can impact the classification and prediction accuracy of ankle joint torque. In this thesis project, HD-sEMG based data was collected together with ankle joint torque measurements from 5 subjects during MVIC of plantarflexors and dorsiflexors. Machine learning approaches ideally suited for nonlinear regression tasks, su
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16

Al, Harrach Mariam. "Modeling of the sEMG / Force relationship by data analysis of high resolution sensor network." Thesis, Compiègne, 2016. http://www.theses.fr/2016COMP2298/document.

Повний текст джерела
Анотація:
Les systèmes neuromusculaires et musculo-squelettique sont considérés comme un système de systèmes complexe. En effet, le mouvement du corps humain est contrôlé par le système nerveux central par l'activation des cellules musculaires squelettiques. L'activation du muscle produit deux phénomènes différents : mécanique et électrique. Ces deux activités possèdent des propriétés différentes, mais l'activité mécanique ne peut avoir lieu sans l'activité électrique et réciproquement. L'activité mécanique de la contraction du muscle squelettique est responsable du mouvement. Le mouvement étant primord
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17

Moreira, Cristina. "Activação electromiográfica da porção descendente do trapézio superior na elevação do ombro no plano da escápula." Bachelor's thesis, [s.n.], 2014. http://hdl.handle.net/10284/4333.

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Анотація:
Projeto de Graduação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Licenciada em Fisioterapia<br>O estudo realizado tem como objectivo descrever possíveis diferenças existentes na ativação muscular entre gêneros no músculo trapézio superior, porção descendente, com base em diferenças morfológicas e histológicas, através de EMG de superfície, no movimento de elevação no plano da escápula tendo como referência o deltoide anterior. Dezoito indivíduos, onze do sexo feminino e sete do sexo masculino, com idades compreendidas entre os 18 e 30 (26.06 
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18

SOEDIRDJO, SUBARYANI DAMBAWATI HARJAYA. "Analysis of sEMG on biceps brachii and brachioradialis in static conditions: Effect of joint angle and contraction level." Doctoral thesis, Politecnico di Torino, 2016. http://hdl.handle.net/11583/2676390.

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Анотація:
Despite several previous investigations, the direct correlation between the elbow joint angle and the activities of related muscles is still an unresolved topic. The sEMG signals were recorded from biceps brachii (6x8 electrodes, 10mm IED, d=3mm) and brachioradialis (1x8 electrodes, 5mm IED, d=3mm) of ten subjects. The subjects were asked to perform isometric elbow flexion at five joint angles with four contraction levels with respect to the maximum contraction (MVC) at that joint angle. The RMS values of biceps brachii (BB) and brachioradialis (BR) are computed within 500ms epoch and averaged
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19

Souza, Gustavo Souto de Sá e. "Arranjo linear de dez eletrodos ativos sem fio para eletromiografia de superfície." Universidade Federal de Goiás, 2013. http://repositorio.bc.ufg.br/tede/handle/tede/3895.

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Анотація:
Submitted by Erika Demachki (erikademachki@gmail.com) on 2015-01-16T17:10:19Z No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Dissertação - Gustavo Souto de Sá e Souza - 2013.pdf: 6684567 bytes, checksum: fefcf131a81d9d993c2ef7f8bf77fa9e (MD5)<br>Approved for entry into archive by Erika Demachki (erikademachki@gmail.com) on 2015-01-16T17:36:13Z (GMT) No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Dissertação - Gustavo Souto de Sá e Souza - 2013.pdf: 6684567 bytes, checksum: fefcf131a81d9d993c2ef7f8
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20

Cao, Hua. "Modélisation et évaluation expérimentale de la relation entre le signal EMG de surface et la force musculaire." Compiègne, 2010. http://www.theses.fr/2010COMP1856.

Повний текст джерела
Анотація:
L’estimation de la force générée par un muscle est importante dans les études biomécaniques et pour les applications cliniques. Puisque cette force ne peut pas être mesurée directement, le signal électromyographique de surface (SEMG), reflétant le niveau d’activation musculaire, est utilisé pour quantifier la force développée. Cependant, tous les facteurs, contrôlant une contraction isométrique, n’influencent pas la force et le SEMG simultanément. Le but de ce travail de thèse est donc de développer un modèle de simulation conjointe du SEMG et de la force, afin d’étudier la relation EMG-force.
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21

KHALIL, ULLAH XXX. "Extraction of Muscle Anatomical and Physiological Information from Multi-Channel Surface EMG Signals: Applications in Obstetrics." Doctoral thesis, Politecnico di Torino, 2016. http://hdl.handle.net/11583/2642318.

Повний текст джерела
Анотація:
Motor Unit (MU) innervation zones (IZs) localization is an important step in several clinical and non-clinical applications including 1) Acquisition of sEMG signal for accurate estimation of its amplitude and other parameters by avoiding placing the electrodes on IZs, 2) Accurate estimation of the EMG-Force relationship, 3) Effective injection of Botulinum Toxin in Post-stroke Spasticity near the IZs, and 4) Guiding the obstetricians to perform episiotomy during child delivery by avoiding cutting near the IZs of External Anal Sphincter (EAS) muscle. The minimal invasive way to identify the loc
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22

Avrillon, Simon. "Coordination des muscles ischio-jambiers : de la performance à la blessure." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS081/document.

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Анотація:
En raison de leur implication potentielle dans la performance et la blessure, la compréhension des coordinations musculaires des ischio-jambiers représente aujourd’hui un enjeu en sciences du mouvement. Cependant, les méthodes actuelles basées sur la mesure de l’activation musculaire ou la modélisation musculo-squelettique ne permettent pas d’identifier les facteurs influençant les coordinations pour chaque individu. Explorer ces facteurs permettrait de mieux comprendre comment le système nerveux central explore et exploite l’ensemble des coordinations musculaires possibles afin d’adopter une
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23

Dias, Catarina Rocha Melo. "Estudo eletromiográfico dos músculos escapulares em diferentes variações da box position e da prancha." Bachelor's thesis, [s.n.], 2017. http://hdl.handle.net/10284/6286.

Повний текст джерела
Анотація:
Projeto de Graduação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Licenciada em Fisioterapia<br>Resumo: Objetivo: Analisar a atividade eletromiográfica dos músculos serrátil anterior, trapézio superior e inferior ao longo do exercício de box position e prancha com diferentes variações e superfícies. Metodologia: Foi realizada a análise da atividade electromiográfica dos músculos acima referidos em quinze participantes (média de idades 22.00±2.00 anos; IMC 23.41±3.83 kg/m2) nas diferentes variações dos exercícios box position e prancha, send
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24

Santos, Ari dos. "Análise eletromiográfica do exercício de press-up com variações e diferentes níveis de estabilidade." Bachelor's thesis, [s.n.], 2016. http://hdl.handle.net/10284/5679.

Повний текст джерела
Анотація:
Projeto de Graduação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Licenciado em Fisioterapia<br>Objetivo: O presente estudo tem como objetivo avaliar a atividade neuromuscular dos músculos peitoral, serrátil anterior, infra-espinhoso e grande dorsal durante o exercício de press up box, com diferentes variações. Metodologia: A atividade electromiográfica dos músculos selecionados de doze participantes do sexo masculino (Média de idades 25,08±4,26 anos; IMC 22,66±1,85 Kg/m2) foi analisada durante diferentes variações do exercício press up box
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25

Dogadov, Anton. "Séparation des signaux de deux extenseurs des doigts à partir d'électromyogrammes de surface haute densité et modélisation biomécanique du mécanisme extenseur." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAS034/document.

Повний текст джерела
Анотація:
Les signaux électromyographiques de surface (sEMG) correspondent aux signaux électriques composés par les potentiels d’action produits par les unités motrices d’un muscle actif et enregistrés par des électrodes de surface. Les signaux sEMG sont largement utilisés dans la médicine, le contrôle des prothèses et plus généralement dans les études biomécaniques portant sur l’analyse du mouvement humain. Les signaux sEMG sont très souvent utilisés comme un indicateur d’activation musculaire.Bien que présentant un intérêt évident, l’utilisation de ces signaux reste difficile compte tenu qu’ils sont s
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26

Ollivier, Karen. "Effet d'un entrainement aérobie sur des patients atteints d'une myopathie métabolique : la maladie de McArdle." Paris 6, 2005. http://www.theses.fr/2005PA066066.

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27

Carriou, Vincent. "Multiscale, multiphysic modeling of the skeletal muscle during isometric contraction." Thesis, Compiègne, 2017. http://www.theses.fr/2017COMP2376/document.

Повний текст джерела
Анотація:
Les systèmes neuromusculaire et musculosquelettique sont des systèmes de systèmes complexes qui interagissent parfaitement entre eux afin de produire le mouvement. En y regardant de plus près, ce mouvement est la résultante d'une force musculaire créée à partir d'une activation du muscle par le système nerveux central. En parallèle de cette activité mécanique, le muscle produit aussi une activité électrique elle aussi contrôlée par la même activation. Cette activité électrique peut être mesurée à la surface de la peau à l'aide d'électrode, ce signal enregistré par l'électrode se nomme le signa
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28

Barrue-Belou, Simon. "Contrôle nerveux de la contraction volontaire excentrique chez l'homme : approche neurophysiologique et plasticité à l'entraînement." Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30201/document.

Повний текст джерела
Анотація:
L'objectif de ce travail de thèse est d'étudier d'une part les spécificités de la commande nerveuse lors de la contraction excentrique en explorant les mécanismes impliqués au niveau spinal et d'autre part d'examiner les mécanismes nerveux responsables de la plasticité du système neuromusculaire après un entraînement de force excentrique sous-maximal. A travers ce travail de thèse, nous mettons en évidence la contribution de l'inhibition récurrente à la réduction de l'activation musculaire classiquement observée lors de la contraction excentrique. Par ailleurs, nous montrons que l'inhibition r
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29

KO, MEI-JU, and 柯美如. "surface electromyography(sEMG) during swallowing from stroke patients with Dysphagia." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/29511219439007728916.

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Анотація:
碩士<br>國立高雄師範大學<br>聽力學與語言治療研究所<br>101<br>surface electromyography(sEMG) during swallowing from stroke patients with Dysphagia Abstract Dysphagia is a common complication in stroke patient. It not only impedes the quality of life but also increases the risk of pulmonary complications and even mortality. The videofluoroscopic swallowing study are take as the golden standard methods to assess dysphagia. However, it can’t be performed in the bedside. Our purpose is to investigate whether there is a difference of the sEMG during swallowing between norm
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30

Lim, Chin Guan, and 林進源. "MuscleSense: Sensing Workloads While Strength Training using Wearable Surface Electromyography (sEMG)." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/b85622.

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Анотація:
碩士<br>國立臺灣大學<br>資訊工程學研究所<br>107<br>Strength training improves overall health, well-being, physical appearance, and sports performance.There are four major factors that affect training efficacy in a training session: exercise type, number of repetitions, movement velocity, and workload. Prior research has used wearable sensors to detect exercise type, number of repetitions, and movement velocity while training. However, detecting workload still requires instrumentation of exercise equipment such as exercise machines, or free weights. This paper presents MuscleSense, an approach that detects tra
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31

Zhang, Zhe. "Activity Intent Recognition of the Torso Based on Surface Electromyography and Inertial Measurement Units." 2013. https://scholarworks.umass.edu/theses/1098.

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This thesis presents an activity mode intent recognition approach for safe, robust and reliable control of powered backbone exoskeleton. The thesis presents the background and a concept for a powered backbone exoskeleton that would work in parallel with a user. The necessary prerequisites for the thesis are presented, including the collection and processing of surface electromyography signals and inertial sensor data to recognize the user’s activity. The development of activity mode intent recognizer was described based on decision tree classification in order to leverage its computational eff
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32

Mountjoy, KATHERINE. "Use of a Hill-Based Muscle Model in the Fast Orthogonal Search Method to Estimate Wrist Force and Upper Arm Physiological Parameters." Thesis, 2008. http://hdl.handle.net/1974/1570.

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Modelling of human motion is used in a wide range of applications. An important aspect of accurate representation of human movement is the ability to customize models to account for individual differences. The following work proposes a methodology using Hill-based candidate functions in the Fast Orthogonal Search (FOS) method to predict translational force at the wrist from flexion and extension torque at the elbow. Within this force estimation framework, it is possible to implicitly estimate subject-specific physiological parameters of Hill-based models of upper arm muscles. Surface EMG data
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33

Láncz, Lukáš. "Strategie stabilizace postury při stoji na labilní ploše a při aplikaci válce s vodou." Master's thesis, 2020. http://www.nusl.cz/ntk/nusl-414864.

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Title: Strategy of postural stabilisation using unstable surface and water barrel. Objectives: The aim of this study is to investigate the level of muscle actiavtion of choosen muscles during lunge on unstable surface or with using water barrel. Investigation of the postural strategy used during lunge orn unstable surface or with the water barrel and creation of methodology for measurment and data analysis. Methods: Into this pilot study, there were picked 5 people (athletes). Data for outcomes where used from 3 athletes. The measurement of level of muscle activation were done by surface elect
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34

Láncz, Lukáš. "Strategie stabilizace postury při stoji na labilní ploše a při aplikaci válce s vodou." Master's thesis, 2021. http://www.nusl.cz/ntk/nusl-446887.

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Анотація:
Title: Strategy of postural stabilisation using unstable surface and water barrel. Objectives: The aim of this study is to investigate the level of muscle actiavtion of choosen muscles during lunge on unstable surface or with using water barrel. Investigation of the postural strategy used during lunge orn unstable surface or with the water barrel and creation of methodology for measurment and data analysis. Methods: Into this pilot study, there were picked 5 people (athletes). Data for outcomes where used from 3 athletes. The measurement of level of muscle activation were done by surface elect
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35

Zajíčková, Jana. "Sledování aktivity trupového svalstva při vyšetření posturální stability dle testů DNS pomocí povrchové lektromyografie u osob s bolestmi zad." Master's thesis, 2015. http://www.nusl.cz/ntk/nusl-350189.

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The Master's thesis is focused on monitoring of the core muscles and m. biceps femoris activity in postural stability examination by Dynamic Neuromuscular Stabilization tests using surface electromyography in patients with LBP. Trunk extension test, trunk flexion test and squat test were chosen. The aim of this study was comparing muscle activity timing, symmetry of muscle activation and average activation between healthy subjects and patients with LBP. The changes of muscle activation pattern were observed and average activation was determined. In theoretical part the principles of DNS, surfa
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36

Mishra, Ram Kinker. "Muscle Fatigue Analysis During Dyanamic Conraction." Thesis, 2012. https://etd.iisc.ac.in/handle/2005/2556.

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In the field of ergonomics, biomechanics, sports and rehabilitation muscle fatigue is regarded as an important aspect since muscle fatigue is considered to be one of the main reasons for musculoskeletal disorders. Classical signal processing techniques used to understand muscle behavior are mainly based on spectral based parameters estimation, and mostly applied during static contraction and the signal must be stationary within the analysis window; otherwise, the resulting spectrum will make little physical sense. Furthermore, the shape and size of the analysis window also directly affect the
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37

Mishra, Ram Kinker. "Muscle Fatigue Analysis During Dyanamic Conraction." Thesis, 2012. http://etd.iisc.ernet.in/handle/2005/2556.

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Анотація:
In the field of ergonomics, biomechanics, sports and rehabilitation muscle fatigue is regarded as an important aspect since muscle fatigue is considered to be one of the main reasons for musculoskeletal disorders. Classical signal processing techniques used to understand muscle behavior are mainly based on spectral based parameters estimation, and mostly applied during static contraction and the signal must be stationary within the analysis window; otherwise, the resulting spectrum will make little physical sense. Furthermore, the shape and size of the analysis window also directly affect the
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38

Joubert, Michelle. "A finite element model for the investigation of surface EMG signals during dynamic contraction." Diss., 2008. http://hdl.handle.net/2263/27722.

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A finite element (FE) model for the generation of single fiber action potentials (SFAPs) in a muscle undergoing various degrees of fiber shortening has been developed. The muscle is assumed to be fusiform with muscle fibers following a curvilinear path described by a Gaussian function. Different degrees of fiber shortening are simulated by changing the parameters of the fiber path and maintaining the volume of the muscle constant. The conductivity tensor is adapted to the muscle fiber orientation. At each point of the volume conductor, the conductivity of the muscle tissue in the direction of
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