The aim of this study was to derive a normal myoelectrical signal using surface electrodes and administer it, after suitable amplification, as a stimulation wave to the same source muscle, evaluating the mechanical response. We used an electromyograph connected to an amplifier and we positioned the electrodes onto the skin layers above the muscle mass of the left arm biceps in a subject who was asked to carry out a series of voluntary contractions in isometry using the greatest possible exertion. The surface EMG (EMG_S) pattern that produced the greatest increase in peak force was selected, multiplied n times and injected into the source muscle in order to administer a stimulation trace using more “physiological” methods, thus avoiding the use of excessively fatiguing wave packets when carrying out the gesture. The EMG_S wave derived and subsequently administered to the muscle pro...
Normal myoelectric signal and its use in functional electrical stimulation in spinal cord injury patients
PASCOLO, Paolo
2001-01-01
Abstract
The aim of this study was to derive a normal myoelectrical signal using surface electrodes and administer it, after suitable amplification, as a stimulation wave to the same source muscle, evaluating the mechanical response. We used an electromyograph connected to an amplifier and we positioned the electrodes onto the skin layers above the muscle mass of the left arm biceps in a subject who was asked to carry out a series of voluntary contractions in isometry using the greatest possible exertion. The surface EMG (EMG_S) pattern that produced the greatest increase in peak force was selected, multiplied n times and injected into the source muscle in order to administer a stimulation trace using more “physiological” methods, thus avoiding the use of excessively fatiguing wave packets when carrying out the gesture. The EMG_S wave derived and subsequently administered to the muscle pro...I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.