Intramuscular EMG (Electromyography) requires accessing the electrical signals from muscles that lie deeper within the body or are overlaid by other muscles.
To record signals from such muscles accurately, fine wire electrodes are used. These are inserted directly into the muscle tissue using a needle, and once in place, the needle is removed, leaving the wire embedded.
These electrodes provide localized, high-fidelity signals with minimal discomfort and are ideal for dynamic muscle studies, especially in kinesiology and neurophysiology.
Other options like surface or plate-shaped electrodes are not suitable for deeper muscle detection as they only capture signals from superficial muscle layers.