The Fusimotor System

摘要: Several lines of evidence point to an important role the rusimotor system in “muscle-wisdom” phenomenon during peripheral fatigue some human voluntary contractions: 1) muscle afferents provide a net amplification skeletomotor output, with only known afferent species capable this being spindle; 2) spindle firing rates decline constant-force contractions, so fusimotor support output decreases; 3) waning can be offset by application high-frequency vibration fatiguing muscle, which excites endings; and 4) progressive motor unit maximal contractions is abolished blocking inputs, it argued that, at least initial stages contraction, must due withdrawal support.