Howtosignalprocessing
EMG signals are recorded by placing electrodes close to the muscle groups. When the muscle is activated, the length of the muscle decreases and the muscle, skin and electrodes move with respect to one another. At that time, the electrodes will show some movement artifacts.
- What does surface EMG show?
- What are the differences between surface and intramuscular EMG?
- What is the principle of electromyography?
What does surface EMG show?
Surface EMGs often convey information regarding muscle activation as, for example, the intensity of muscle contraction, the myoelectric manifestation of muscle fatigue and the recruitment of motor units.
What are the differences between surface and intramuscular EMG?
Surface electromyography is increasingly used for recording from superficial muscles in clinical or kinesiological protocols, where intramuscular electrodes are used for investigating deep muscles or localized muscle activity. There are many applications for the use of EMG.
What is the principle of electromyography?
Electromyography (EMG) measures muscle response or electrical activity in response to a nerve's stimulation of the muscle. The test is used to help detect neuromuscular abnormalities.
