Myoelectric Signal
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Neuromuscular control strategies of the trunk antagonist muscles during the Biering-Sorensen test in individuals with recurrent low back pain and healthy subjects
Abstract OBJECTIVES To compare the activation pattern of the trunk antagonistic muscles and also the myoelectric manifestations of muscle fatigue between subjects with and without recurrent non-specific low back pain, during the fatigue provocation of the erector spinae. METHODS The study involved 19 subjects with recurrent low back pain with a non-specifi
Motriz: rev. educ. fis.. Publicado em: 2016-12
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2. A novel method for EMG decomposition based on matched filters
Introduction Decomposition of electromyography (EMG) signals into the constituent motor unit action potentials (MUAPs) can allow for deeper insights into the underlying processes associated with the neuromuscular system. The vast majority of the methods for EMG decomposition found in the literature depend on complex algorithms and specific instrumentation.
Res. Biomed. Eng.. Publicado em: 2015-03
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3. Advances and perspectives of mechanomyography
INTRODUCTION: The evaluation of muscular tissue condition can be accomplished with mechanomyography (MMG), a technique that registers intramuscular mechanical waves produced during a fiber's contraction and stretching that are sensed or interfaced on the skin surface. OBJECTIVE: Considering the scope of MMG measurements and recent advances involving the tech
Rev. Bras. Eng. Bioméd.. Publicado em: 2014-12
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4. Development of an anthropomorphic prosthesis prototype for superior members / Desenvolvimento do protótipo de uma prótese antropomórfica para membros superiores
The purpose of this assignment is to develop a multifunctional and anthropomorphic upper limb prosthesis prototype for amputated patients. Its objective is to substitute the natural lost hand, in a way to improve the performance of regular activities. This prosthesis will have anthropomorphic characteristics, like appearance and movement, similar to the ones
Publicado em: 2008
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5. Electromyographic analysis of the masticatory muscles in patients with temporomandibular disorder during chewing / Analise da atividade eletromiografica de musculos mastigatorios em portadores de disfunção temporomandibular durante a mastigação
Temporomandibular disorders (TMD) are characterized by changes in masticatory musculature, temporomandibular joints and associated structures. The aim of this study was to evaluate masticatory function in TMD patients by means of surface electromyographic (EMG) exam, relating the TMD signs and symptoms to the lateral preference masticatory. Subjects were sel
Publicado em: 2005
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6. Desenvolvimento de um protótipo de aquisitor portátil de sinal mioelétrico / Development of a prototype of data logger to myoelectric signal
Electromyography is the study of the muscular function by the acquisition of the electric sign that the muscles produce. Most of the equipments for reception of the sEMG is bench models, in other words, they have a size that disables that the patient can carry it during the period of acquisition of the sign and it is also necessary that a connected computer
Publicado em: 2005
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7. Study and evaluation of techniques for myoelectric signal processing to control rehabilitation systems. / Estudo e avaliação de técnicas de processamento do sinal mioelétrico para o controle de sistemas de reabilitação.
Este trabalho tem a finalidade de analisar algumas técnicas de processamento do sinal mioelétrico, de forma a possibilitar uma posterior implementação de um circuito, que reconheça este sinal e apresente como saída um sinal de controle a ser utilizado em sistemas de reabilitação. Foram simuladas e avaliadas três técnicas de filtragem para o sinal m
Publicado em: 2002
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8. Estudo eletromiografico do padrão de co-ativação do musculo esternocleidomastoideo em diferentes movimentos mandibulares
Although cervical muscles co-activation during jaw movements has been studied, this verification is stilllittle described in literature when are compared healthy subjects and patients with muscular dysfunction. The aim of this study was to verify by surface electromyography the bilateral co-activation of the sternocleidomastoid (SCM) muscle regarding to chew
Publicado em: 2002
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9. Biological signal analysis by wavelets. / Análise de sinais biológicos utilizando wavelets.
The analysis of myoelectric signals from the gastro-intestinal tube of laboratory animals (mice), recorded by chronically implanted electrodes, is a key stone in understanding the disorders associated to the digestive system. This analysis meets considerable difficulties when done by classical methods, specially those based in the Fourier transform. The many
Publicado em: 2001