Electromyography (EMG) is a diagnostic procedure that measures the electrical activity of muscles in response to nerve stimulation. It is used to assess the health of muscles and the nerve cells (motor neurons) that control them. Motor neurons transmit electrical signals that cause muscles to contract, and EMG translates these signals into data that can be interpreted by a healthcare provider.
HOW DOES SURFACE EMG (sEMG) WORK?
Simply, electrodes are placed on the skin over the muscle being tested. These electrodes detect electrical signals generated by the muscle during contraction.
WHAT IS EMG USED TO DIAGNOSE OR DETECT?
WHY USE CUSTOM ELECTRODES FOR EMG APPLICATIONS?
Using custom electrodes for Electromyography (EMG) is important for improving accuracy, comfort, and reliability of data. Custom electrodes are tailored for specific applications and can be designed to meet unique research or clinical needs. Here are the key reasons why custom electrodes are beneficial:
Enhanced Signal Quality
Custom electrodes can be optimized for signal detection, ensuring cleaner and more accurate recordings by reducing noise and interference. This is especially important for capturing low-amplitude signals from small or deep muscles.
Optimized Fit and Comfort
Custom electrodes are designed to fit the specific anatomy of the patient or subject, which improves comfort during the procedure. This is crucial for long-duration recordings or sensitive areas where standard electrodes may cause discomfort.
Application-Specific Design
Different research and clinical environments require unique electrode designs. These custom designs cater to these specific needs, improving the versatility of EMG applications.
Reduced Cross-Talk and Noise
Crosstalk occurs when signals from nearby muscles interfere with the target muscle’s recording. Custom electrodes can be shaped and placed precisely to minimize interference, leading to clearer data.
Improved Durability and Reusability
Custom electrodes can be made from higher-quality materials for repeated use in research settings. This can reduce the overall cost and waste compared to disposable electrodes.
Targeted Data Collection
For specialized studies (e.g., facial muscles, small hand muscles), custom electrodes can be designed to capture signals from very small or difficult-to-reach muscle groups. This is valuable for clinical diagnoses, prosthetics research, or robotic control using bio-signals.