Abstract
Studies of the firing pattern of the motor units (MUs) upon different voluntary movements are restricted by the inadequacy of the current methods. Summing up of the impulses of different MUs in higher muscle efforts disturbs the separation of the trains from single units. To overcome this obstacle selective electrodes were used. However, the more selective is an electrode, the more susceptible it is to changes in the parameters of the selected impulses when changing its position in respect to the MU. Thus the study of the MU-impulses upon greater angle of movement, when the leading-off electrodes are displaced from their initial position is difficult.
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References
Büdingen, H. J., and Freund, J. 1976, The relationship between the rate of rise of isometric tension and motor unit recruitment in a human forearm muscle, Pflüggers Arch., 362:61–67.
Burke, R. E., 1981, Motor unit recruitment: What are the critical factors? in: “Motor Unit Types, Recruitment and Plasticity in Health and Disease,” J. E. Desmedt (ed.). Karger, Basel.
Desmedt, J. E., and Godaux, E., 1977a, Ballistic contractions in man: characteristic recruitment pattern of single motor units of the tibialis anterior muscle, J.Physiol.(Lond.), 264:673–693.
Desmedt, J. E., and Godaux, E., 1977b, Fast motor units are not preferentially activated in rapid voluntary contractions in man. Nature (Lond)., 267:717–719.
Desmedt, J. E., and Godaux, E., 1978, Ballistic contractions in fast and slow human muscles: discharge patterns of single motor units, J.Physiol.(Lond.), 285:185–196.
Freund, J., and Büdingen, H. J., 1975, Motor unit activity during voluntary contractions of human forearm muscles, Expl.Brain Res., 23, Suppl., p.72.
Gurfinkel, V. S., and Levik, Y.S., 1973, Dependence of the muscle contraction on the consequence of the activating impulses, Biofizika, 18:116–131 (in Russian).
Gurfinkel, V. S., Mirskyi, M. L., Tarko, A. M., and Surguladze, T. D., 1972, Work of the motor units upon the initiation of the muscle tension, Biofizika, 17:303–309 (in Russian).
Gurfinkel, V. S., Surguladze, T. D., Mirskyi, M. L., and Tarko, A. M., 1970, Work of the human motor units in rhythmic movements, Biofizika, 15:1090–1095 (in Russian).
Gydikov, A., and Kosarov, D., 1972a, Volume conduction of the potentials from separate motor units in human muscle. Electromyography, 12:127–147.
Gydikov, A., and Kosarov, D., 1927b, Extraterritorial potential field of impulses from separate motor units in human muscles. Electromyography, 12:283–305.
Gydikov, A., and Kosarov, D., 1974, Some features of different motor units in human biceps brachii, Pflüggers Arch., 374:75–88.
Gydikov, A., Kossev, A., Kosarov, D., and Kostov, K., 1985, Investigation of single motor units firing during movements against elastic resistance, p.68, “Abstracts of the 5th International Symposium on Motor Control, Varna, 10–15.06. 1985”.
Gydikov, A., Kossev, A., Trayanova, N., and Radicheva, N., 1985, Selective recording of single motor unit potentials, EMG Clin.Neurophysiol. (in press).
Gydikov, A., Kostov, K., and Gatev, P., Mechanical properties and discharge frequencies of single motor units in human m. biceps brachii, in: “Neural and Mechanical Control of Movement,” M. Kumamoto (ed.), Yamagushi Shoten, Kyoto.
Henneman, E., 1957, Relation between size of neurones and their susceptibility to discharge. Science, 126:1345–1346.
Kosarov, D., Rokotova, N. A. Shapkov, Y. T., and Anissimova, N. P. 1978, Activity of single motor units in voluntary control of isometric muscle tension on man. Acta Physiol.Pharmacol.Bulg., 4:3–11.
Monster, A. W., and Chan, H., 1977, Isometric force production by motor units of extensor digitorum communis muscle in man, J.Neurophysiol., 40:1432–1443.
Tokizane, T., and Shimazu, H. 1964, Functional differentiation of human skeletal muscle, in: “Corticalization and Spinalization of Movement,” Ch. C. Thomas, Springfield, Ill.
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© 1987 Plenum Press, New York
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Kosarov, D., Gydikov, A., Kossev, A. (1987). Motor Unit Discharges in Interosseus Dorsalis Primus Muscle During Voluntary Movements. In: Gantchev, G.N., Dimitrov, B., Gatev, P. (eds) Motor Control. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-7508-5_2
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DOI: https://doi.org/10.1007/978-1-4615-7508-5_2
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