EMG (electromyography) Machine is a medical device used to measure the electrical activity of muscles.

This test involves inserting a needle electrode into a muscle to detect and record the electrical signals produced by the muscle fibers.

The EMG machine converts these signals into patterns that can be analyzed by a healthcare provider to diagnose various conditions such as muscle disorders, nerve damage, and neuromuscular diseases.

EMG machines are also used in research to study muscle function and activity.