Abstract
Muscle spindle discharge in the cat is sensitive to the mechanical activity of anatomically close motor units (e.g. Binder & Stuart, 1980; Conway, Halliday & Rosenberg, 1993). In man similar have been demonstrated by electrical stimulation of skeletomotor axons (McKeon & Burke, 1983). However, studies of voluntary contractions in man have failed to reveal effects of this nature when single afferent firing was correlated with gross surface EMG in leg muscles (Gandevia, Burke & McKeon, 1986). Here we examine this problem in the case of finger extensor muscles during low force voluntary isometric contractions.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Binder, M. D. & Stuart, D. G. (1980) Responses of Ia and spindle group II afferents to single motor unit contractions. J. Neurophysiol. 43, 621–629.
Conway, B. A., Halliday, D. M. & Rosenberg, J. R. (1993). Detection of weak synaptic interactions between single Ia-afferents and motor-unit spike trains in the decerebrate cat. J. Physiol. 471, 379–409.
Edin, B. E. & Vallbo, Å.B. (1990). Classification of human muscle stretch receptor afferents: A bayesian approach. J. Neurophysiol. 63, 1314–1322.
Gandevia, S. C., Burke, D. & Mckeon, B. (1986). Coupling between human muscle spindle endings and motor units assessed using spike-triggered averaging. Neurosci. Lett. 71, 181–186.
Jenkins, G. M. (1963). Discussion in: Bartlett, M.S. (1963). The spectral analysis of point processes. J. R. Stat. Soc. B 25, 264–280.
Mckeon, B.& Burke, D (1983). Muscle spindle discharge in response to contraction of single motor units. J. Neurophysiol. 49, 291–302.
Rosenberg, J. R., Amjad, A. M., Breeze, P., Brillinger, D. R. & Halliday, D. M. (1989). The Fourier approach to the identification of synaptic coupling between neuronal spike trains. Prog. Biophys. & Mol. Biol. 53, 1–31.
Vallbo, Å.B. & Hagbarth, K-E. (1968). Activity from skin mechanoreceptors recorded percutaneously in awake human subjects. Exp. Neurol. 21, 270–289.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1995 Springer Science+Business Media New York
About this chapter
Cite this chapter
Halliday, D.M., Kakuda, N., Wessberg, J., Vallbo, Å.B., Conway, B.A., Rosenberg, J.R. (1995). Correlation between Ia Afferent Discharges, EMG and Torque During Steady Isometric Contraction of Human Finger Muscles. 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_120
Download citation
DOI: https://doi.org/10.1007/978-1-4615-1935-5_120
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4613-5793-3
Online ISBN: 978-1-4615-1935-5
eBook Packages: Springer Book Archive