The<unk>  <unk>  is the mechanical signal observable from the surface of a muscle when the muscle is contracted. At the onset of muscle contraction, gross changes in the muscle shape cause a large peak in the<unk> . Subsequent vibrations are due to oscillations of the muscle fibres at the resonance frequency of the muscle. The<unk>  is also known as the phonomyogram, acoustic myogram, sound myogram, vibromyogram or muscle sound.
Mechanomyogram
Electromyography
Electrophysiology
Electroneuronography
Nerve conduction study
Cervicography
Myelography
Nerve biopsy