Abstract
A new method for differential evaluation of electromyographic data on straited muscles of human lower extremities was developed. This method is based on nonlinear dynamics and thermodynamics and can be used for identification of pathologies. The distance between two trajectories of the potential of two symmetric muscles was the main measured characteristic of coordinated muscle work. These data were used to determine the Lyapunov exponent and the time of forgetting initial conditions, which reflect the generally chaotic dynamics of muscle activity. Application of the theory of deterministic chaos to analysis of electromyographic patterns can improve the diagnosis of peripheral nervous system diseases and the efficacy of treatment control. Quantitation of nonlinear dynamic parameters of muscle activity, clear data representation, high prognostic information content of the Lyapunov exponent and Kolmogorov entropy are among the advantages of the new method.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
D. I. Trubetskov, Introduction to Synergetics. Chaos and Structures (Editorial URSS, Moscow, 2004) [in Russian].
P. S. Laida and M. G. Rosenblyum, Priroda, No. 8, 18 (1992).
L. P. Nikolaev, Handbook on Biomechanics Applied to Orthopedics, Traumatology, and Prosthetics (Kiev, 1950), Part 2 [in Russian].
B. M. Gekht, Theoretical and Clinical Electromyography (Leningrad, 1990) [in Russian].
L. A. Vodolazsky, Foundations of the Technology of Clinical Electrography (Moscow, 1986) [in Russian].
G. G. Shuster, Deterministic Chaos (Mir, Moscow, 1988) [in Russian].
A. Lichtenberg and M. Liberman, Regular and Stochastic Dynamics (Springer, Berlin, 1984; Mir, Moscow, 1984) [in Russian].
V. A. Mashin, Biofizika 51(3), 524 (2006).
F. Moon, Chaotic Vibrations: An Introduction for Applied Scientists and Engineers (Wiley, New York, 1987; Mir, Moscow, 1990) [in Russian].
G. P. Bystrai, A. S. Vorokh, and S. V. Andreev, Biofizika 50(5), 851 (2005).
P. Bergй, Y. Pomeau, and Ch. Vidal, Order in Chaos (Hermann, Paris, 1984; Mir, Moscow, 1991) [in Russian].
G. M. Zaslavsky, Stochasticity of Dynamic System (Nauka, Moscow, 1984) [in Russian].
G. P. Bystrai, TVT 42(1), 81 (2004).
D. A. Winter and S. H. Scott, J. Electromyogr. Kinesiol. 1(4), 263 (1991).
A. S. Vitenzon and K. A. Pentushanskaya, Biomekhanika, No. 2 (2002).
H. Haken, Advanced Synergetics. Instabilities of Self-Organizing Systems and Devices (Springer-Verlag, Berlin-Heidelberg-New York-Tokyo, 1983; Mir, Moscow, 1989).
Author information
Authors and Affiliations
Additional information
Original Russian Text © G.P. Bystrai, A.V. Boginich, T.F. Shklyar, 2007, published in Biofizika, 2007, Vol. 52, No. 6, pp. 1093–1103.
Rights and permissions
About this article
Cite this article
Bystrai, G.P., Boginich, A.V. & Shklyar, T.F. Chaotic dynamics of the surface potential of human skeletal muscles determined in electromyography. BIOPHYSICS 52, 616–624 (2007). https://doi.org/10.1134/S0006350907060140
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0006350907060140