Myoelectric Signals
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. 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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2. 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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3. A spectral analysis of the myoelectric activity of the left colon in patients with schistosomiasis mansoni
The objective of the present study was to perform a spectral analysis of the electrical activity of the left colon of patients with hepatosplenic schistosomiasis. Thirty patients were studied, divided into 2 groups: group A was composed of 14 patients (9 males and 5 females) with hepatosplenic schistosomiasis and group B was composed of 16 female patients wi
Brazilian Journal of Medical and Biological Research. Publicado em: 2005-05
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4. 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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5. 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
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6. Control scheme governing concurrently active human motor units during voluntary contractions
1. The electrical activity of up to eight concurrently active motor units has been recorded from the human deltoid and first dorsal interosseous muscles. The resulting composite myoelectric signals have been decomposed into their constituent motor-unit action potential trains using a recently developed technique.
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7. Behaviour of human motor units in different muscles during linearly varying contractions
1. The electrical activity of up to eight concurrently active motor units has been recorded from the human deltoid and first dorsal interosseous (f.d.i.) muscles. The detected myoelectric signals have been decomposed into their constituent motor-unit action potential trains using a recently developed technique.