title: Power spectral changes of the vastus medialis electromyogram for graded isometric torques (I).
mesh_terms: D000328:Adult; D004576:Electromyography; D005583:Fourier Analysis; D006801:Humans; D007537:Isometric Contraction; D009046:Motor Neurons / Q000502:physiology; D009119:Muscle Contraction; D005082:Physical Exertion