![]() Most neuropathies are, in fact, caused by damage to the nerve’s axon rather than damage to the myelin sheath surrounding the nerve. Whereas the amplitude (i.e., how “strong” is the signal) gives clues on how many functioning axons are still present in that nerve damaged nerves have lower amplitude than healthy nerves when axons, rather than myelin, are damaged. The speed of nerve conduction (i.e., nerve conduction velocity) is influenced by the myelin sheath-the insulating coating that surrounds the nerve. It is often followed by an electromyography (EMG) test, to exclude or detect muscle disorders.Ī healthy nerve conducts signals with greater speed and strength than a damaged nerve. About Peripheral Neuropathy Menu ToggleĪ nerve conduction study measures how electrical impulses move along a nerve the two main parameters your physician will look at are velocity and amplitude of nerve signals: these will better characterize your disease and give clues to the causes. ![]() EBike Tour Across The U.S.: News and Updates.Plan a Fundraiser / Support a Fundraiser.Peripheral Neuropathy Research Registry – Researchers.Peripheral Neuropathy Patient Education. ![]()
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