title: Relationship among recruitment order, spike amplitude, and twitch tension of single motor units in human masseter muscle.
mesh_terms: D000200:Action Potentials; D000328:Adult; D006801:Humans; D008410:Masticatory Muscles / Q000294:innervation / Q000502:physiology*; D009046:Motor Neurons / Q000502:physiology*; D009119:Muscle Contraction; D009431:Neural Conduction; D011999:Recruitment, Neurophysiological