Electromyography Of Muscles

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Electromyography is a procedure that assesses the muscles and the motor neurons that control them. The motor neurons that control the muscles transmit electrical signals that cause the muscles to contract. A thin needle with an electrode on the end will be place through the skin into the muscle. The electrode picks up the electrical signal from the muscle. The patient will be asked to use the muscle by contracting a muscle or by bending the arm. EMG measures the electrical activity of muscle during rest, minor contraction and forceful contraction. An EMG will translate this signal into graphs, sounds, or numerical values to be interpreted. The test will determine if your muscles are healthy. The test is done to better understand if there is …show more content…
Francesco Redi was the first to recognize the connection between muscles and the generation of electricity. In 1666 there is documentation to show that an electric ray fish used a highly specialized muscle. In 1773 Walsh was able to demonstrate that the fish’s muscle could generate electricity. Alessandro Volta created a device that produced electricity to stimulate muscles. Luigi Galvani who is said to be the father of neurology, showed that electrical stimulation of the muscles produce contractions. In 1849, Emil du Bois-Reymond discovered that a person could record electrical activity during a voluntary muscle contraction. In 1890, the first recording of this activity was made by Etienne-Jules Marey. Marey also created the term electromyography. In 1922, Gasser and Erlanger used an oscilloscope to show the electrical signals from muscles. The capability of detecting electromyographic signals improved steadily from the 1930s through the 1950s, and researchers began to use improved electrodes more widely for the study of muscles (History of Electromyography).

A research area for EMG is the study the study of muscular function and co-ordination. This area of research is usually called kinesiological EMG. The purpose of kinesiological EMG is to investigate the functions of muscles in different movements and postures. Kinesiological EMG is observed while looking at healthy and disabled subjects, who can perform skilled actions and during training. It is done in humans and animals, in and out the laboratory setting. The feedback should allow for the optimization of movement, of sports materials, of training possibilities and, and sports performance (Result

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