If the electrode is not properly immobilized, the result is a change in the CMAP amplitude which may lead to misinterpretation. So the recording electrodes should be secured well with tape, the stimulator secured with a Velcro strap and the entire hand with pad or board. The goal is to minimize the movement of the limb. Impulse transmission: Submaximal stimulation can give artifactual decrement or increment in the CMAP amplitude. So always check to ensure that the stimulus is supramaximal before beginning of<unk> . A peripheral nerve is electrically stimulated, and the amplitude of the CMAP is recorded at rest and after a short voluntary activation. The stimulation frequency is 3 Hz, the number of stimuli 10. The result is reported as the difference in amplitude of the CMAP between stimulation one and four (in %). The area value changes typically in parallel, but is not reported. If there is a major difference between amplitude and area decrement, technical factors should be considered.
Repetitive nerve stimulation
Electrical muscle stimulation
Transcutaneous electrical nerve stimulation
Cortical stimulation mapping
Electromyography
Electroneuronography
Nerve block
Percutaneous tibial nerve stimulation