title: Rhythmic activity of a group of human motoneurones during voluntary contraction of a muscle.
mesh_terms: D004594:Electrophysiology; D006801:Humans; D008433:Mathematics; D009046:Motor Neurons / Q000502:physiology*; D009119:Muscle Contraction; D010507:Periodicity; D011999:Recruitment, Neurophysiological; D014836:Volition