Anti-fatigue action exerted by the sympathetic nervous system in the rabbit digastric muscle.
Stimulation of the cervical sympathetic trunk, at frequencies within the physiological range, consistently elicits a partial recovery of the contractile force in the fatigued digastric muscle. This action, together with the tension potentiation induced by the sympathetic system in the non-fatigued muscle, could improve the muscular performance under the physiological conditions associated with increase in the sympathetic outflow.
Grassi
C
C
Institute of Human Physiology, Catholic University S. Cuore, Rome, Italy.
Passatore
M
M
D000818:Animals; D004558:Electric Stimulation; D005728:Ganglia, Sympathetic / Q000502:physiology*; D009119:Muscle Contraction / Q000502:physiology*; D009334:Neck Muscles / Q000294:innervation*; D005082:Physical Exertion / Q000502:physiology*; D011817:Rabbits; D014278:Trigeminal Nuclei / Q000502:physiology