Muscle sensors are devices that detect and measure electrical signals generated by muscles during contraction and relaxation. These sensors can be used in various applications, including rehabilitation, sports training, and research, to monitor muscle activity and performance. They help in understanding how muscles function and can assist in diagnosing muscle-related conditions. Typically, muscle sensors work by using electrodes placed on the skin's surface to capture electrical impulses. This data can then be analyzed to provide insights into muscle strength, endurance, and coordination. Advances in technology have led to the development of more sophisticated sensors, enhancing their accuracy and usability in fields like biomechanics and physical therapy.