Electromyography (EMG)
Electromyography (EMG) is a specialized test used to measure the electrical activity produced by skeletal muscles. This test plays a crucial role in detecting abnormalities in the muscles’ response to nerve signals. By placing small electrodes into the muscle tissue, EMG can record electrical activity both when the muscles are at rest and during voluntary contractions. The results help physicians pinpoint the exact location of neuromuscular dysfunction, allowing for the diagnosis of conditions such as muscular dystrophy, myopathies, radiculopathies, and amyotrophic lateral sclerosis (ALS).
EMG is especially useful for identifying issues related to muscle weakness, spasms, and abnormal reflexes. The electrical activity recorded during the test can reveal whether the problem originates in the muscles or the nerves that control them. This detailed information aids in forming precise treatment strategies, whether it involves physical therapy, medication, or surgical intervention.
Nerve Conduction Velocity (NCV)
Nerve Conduction Velocity (NCV) tests are used to measure how quickly electrical signals move through the peripheral nerves. The speed and strength of these signals can indicate the presence of nerve damage or compression. NCV tests are particularly effective in diagnosing conditions such as carpal tunnel syndrome, peripheral neuropathy, Guillain-Barré syndrome, and chronic inflammatory demyelinating polyneuropathy (CIDP). These conditions can lead to numbness, tingling, muscle weakness, and chronic pain, impacting a patient’s day-to-day life.
