Discharge Properties of Group III and IV Muscle Afferents
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Stimulation of group III and IV muscle afferents has been shown to have important reflex effects on both the somatic and autonomic nervous systems. These include an inhibitory effect on alpha motoneurones, an excitatory effect on gamma motoneurones and an excitatory effect on the sympathetic nervous system. The purpose of this review is to describe the mechanical and metabolic stimuli that discharge group III and IV muscle afferents. Particular attention will be paid to the responses of these afferents to dynamic exercise induced by electrical stimulation of the mesencephalic locomotor region.
KeywordsApply Physiology Discharge Property Dynamic Exercise Muscle Afferents Gadolinium Injection
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- Adreani, C. M., Hill, J. M., and Kaufman, M. P., 1997, Responses of group III and IV muscle afferents to dynamicexercise Journal of Applied Physiology86, 1811–1817.Google Scholar
- Bockman, E. L., 1983, Blood flow and oxygen consumption in active soleus and gracilis muscles in catsAmerican Journal of Physiology244546–551.Google Scholar
- Hoffer, J. A., Loeb, G. E., Marks, W. B., O’Donovan, M. J., Pratt, C. A., and Sugano, N., 1987a, Cat hind limb motoneurons during locomotion. I. Destination, axonal conduction velocity, and recruitment thresholdJournal of Neurophysiology57, 510–529.Google Scholar
- Hoffer, J. A., Sugano, N., Loeb, G. E., Marks, W. B., O’Donovan, M. J., and Pratt, C. A., 1987b, Cat hind limb motoneurons during locomotion. II. Normal activity patternsJournal of Neurophysiology57, 530–553.Google Scholar
- Iggo, A., 1961, Non-myelinated afferent fibers from mammalian skeletal muscleJournal of hysiology155, 52–53.Google Scholar
- Kaufman, M. P., and Forster, H. V., 1996, Reflexes controlling circulatory, ventilatory and airway responses to exercise. In ‘Handbook of Physiology, Section 12: Exercise: Regulation and Integration of Multiple Systems. II. Control of Respiratory and Cardiovascular Systems’, L. B. Rowell and J. T. Shepherd, eds., Oxford University Press, New York, pp. 381–447.Google Scholar
- Kaufman, M. P., and Rybicki, K. J., 1987, Discharge properties of group III and IV muscle afferents: their responses to mechanical and metabolic stimuliCirculation Research61, 160–165.Google Scholar
- Kaufman, M. P., Rybicki, K. J., Waldrop, T. G., and Ordway, G. A., 1984a, Effect of ischemia on responses of group III and IV afferents to contractionJournal of Applied Physiology57, 644–650.Google Scholar
- Rotto, D. M., Hill, J. M., Schultz, H. D., and Kaufman, M. P., 1990a, Cyclooxygenase blockade attenuates the responses of group IV muscle afferents to static contractionAmerican Journal of Physiology259, 745–750.Google Scholar
- Rotto, D. M., Schultz, H. D., Longhurst, J. C., and Kaufman, M. P., 1990b, Sensitization of group III muscle afferents to static contraction by products of arachidonic acid metabolismJournal of Applied Physiology68,861–867.Google Scholar
- Shik, M. L., and Orlovsky, G. N., 1966, Locomotion of the diencephalic cat elicited by stimulation of the pyramidsBiofizika13, 143–152.Google Scholar