Inhibitory effect of unilateral contraction on the contralateral arm.
Electromyograms of the triceps and biceps brachii of both arms of 6 subjects were recorded in reaction trials to flashing stimulus. Rapid voluntary elbow extension was immediately preceded by a silent period of the unexercised contralateral agonist (contralateral agonist silent period). Since this silent period was not accompanied by a contralateral antagonist contraction, the contralateral agonist silent period was not attributable to reciprocal inhibition in the spinal levels.
D001132:Arm / Q000502:physiology*; D004576:Electromyography; D006801:Humans; D008297:Male; D009046:Motor Neurons / Q000502:physiology; D009068:Movement; D009119:Muscle Contraction; D009132:Muscles / Q000294:innervation; D009433:Neural Inhibition