Abstract
Appelberg, Hulliger, Johansson & Sojka (1983a) has shown that electrical stimulation of group III muscle afferents evokes excitatory effects on both homo- and heteronymous γ-motoneurones. It is also well known that increased intramuscular concentrations of substances liberated during static muscle contractions and/or inflammation increase the activity of group III and IV muscle afferents. Furthermore, it has been shown that the activity in the primary muscle spindle afferents (MSAs) is most important for the reflex mediated muscle stiffness.
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References
Appelberg, B., Hulliger, M., Johansson, H. & Sojka, P. (1983a) Actions on γ-motoneurones elicited by electrical stimulation of group III muscle afferent fibres in the hind limb of the cat. J. Physiol. 335, 275–292.
Appelberg, B., Hulliger, M., Johansson, H. & Sojka, P. (1983b) Actions on γ-motoneurones elicited by electrical stimulation of group II muscle afferent fibres in the hind limb of the cat. J. Physiol. 335, 255–273.
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Djupsjöbacka, M., Johansson, H., Bergenheim, M., Sjölander, P. (1995). Regulation of the γ-Muscle Spindle System by Chemosensitive Muscle Afferents. In: Taylor, A., Gladden, M.H., Durbaba, R. (eds) Alpha and Gamma Motor Systems. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-1935-5_37
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