Abstract
The lateral stiffness and electromyogram characteristics of the resting calf flexor and extensor muscles have been studied in 18 subjects during a seven-day immersion with and without mechanical stimulation of the foot support zones. It has been shown that as early as day 1 of support deprivation, the lateral stiffness steadily decreases in the m. soleus and, in contrast, drastically increases in the m. tibialis anterior. A mechanical stimulation of the foot support zones decreases the rate and degree of the changes observed in both muscles. The tight correlation of the changes in the lateral stiffness with the muscle activity suggests a significant dependence of these changes on the electromyogram characteristics at rest.
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Bryanov, I.I., Kozerenko, O.P., Kakurin, L.I., et al., Specific Features of Statokinetic Reactions, in Kosmicheskie polety na korablyakh “Soyuz” (Space Flights in the Soyuz Spacecrafts), Moscow, 1976, p. 194.
Gevlich, G.I., The Mechanisms of Muscle Tone Disturbance under Decreased Gravity Loads, Extended Abstract of Cand. Med. Sci. Dissertation, Moscow, 1984.
Grigor’ev, A.I., Kozlovskaya, I.B., and Shenkman, B.S., The Role of Support Afferentation in Organization of Tonic Muscle Movements, Ross. Fiziol. Zh. im. I.M. Sechenova, 2004, vol. 90, no. 5, p. 508.
Kakurin, L.I., Cherepakhin, M.A., and Pervushin, V.N., The Effect of Space Flight Factors on the Human Muscle Tone, Kosm. Biol. Med., 1971, vol. 5, no. 2, p. 63.
Kozlovskaya, I.B., Afferentnyi control’ proizvol’nykh dvizhenii (The Afferent Control of Voluntary Movements), Moscow, 1976.
Shenkman, B.S., Podlubnaya, Z.A., Vikhlyantsev, I.M., et al., Contractile Characteristics of Fibers and the Sarcomeric Cytoskeleton Proteins of the Human m. soleus under Gravitational Unloading. The Role of Support Stimulus, Biofizika, 2004, vol. 49, p. 403.
Shul’zhenko, E.B. and Vil’-Vil’yams, I.F., The Imitation of Body Deconditioning by “Dry” Immersion Method, in X chteniya K.E. Tsiolkovskogo (The 10th K.E. Tsiolkovskii Memorial Readings), 1975, p. 39.
Khusnutdnnova, D.R., Netreba, A.I., and Kozlovskaya, I.B., Mechanic Stimulation of the Soles Support Zones as a Countermeasure of the Contractile Properties under of Dry Immersion Conditions, J. Gravit. Physiol., 2004, vol. 11, no. 2, p. 141.
Kozlovskaya, I.B., Aslanova, I.F., Barmin, V.B., et al., The Nature and Characteristics of a Gravitational Ataxia, Physiologist, 1983, vol. 26, no. 6, p. 108.
Kozlovskaya, I., Dmitrieva, I., Grigorieva, L., et al., Gravitational Mechanisms in the Motor System. Studies in Real and Simulated Weightlessness, in Stance and Motion. Facts and Concepts, New York: Plenum, 1988, p. 37.
Kozlovskaya, I.B., Sayenko, I.V., Sayenko, D.G., et al., Role of Support Afferentation in Control of the Tonic Muscle Activity, Acta Astronautica, 2007, vol. 60, p. 285.
Litvinova, K.S., Nemirovskaya, T.L., Gasnikova, N.M., et al. Effects of Artificial Support Stimulation on Soleus Single Fiber Characteristics in Men Exposed to 7-Day Dry Immersion, J. Muscle Res. Cell Motil., 2003, vol. 24 nos. 4–6, p. 374.
Melnik, K.A., Miller, T.F., and Ryazansky, S.N., Effects of Mechanical Stimulation of the Foot Soles in 7-Day Dry Immersion on Electromyographic Pattern of Locomotions, J. Proc. Int. Astr. Feder. Congr. 5th Student Part. Progr., 2003.
Mounler, Y., Montel, V., Picquet, F., et al., Dual Effect of Deafferentation on Contractile Characteristics and Sarcoplasmic Reticulum Properties in Rat Soleus Fibers, J. Appl. Physiol., 2005, vol. 99, no. 2, p. 542.
Ogneva, I.V., Kurushkin, V.A., Altaeva, E.G., et al., EFFECT of Short-term Gravitational Unloading on Rats and Mongolian Gerbil Muscles, J. Muscle Res. Cell Motil., 2009, vol. 30, p. 261.
Popov, D.V., Vinogradova, O.L., Sayenko, I.V., and Kozlovskaya, I.B., Mechanical Stimulation of Foot Support Zones for Preventing Unfavorable Effects of Gravitational Unloading, J. Gravit. Physiol., 2003, vol. 10, no. 1, p. 59.
Sayenko, D., Melnik, K., Khusnutdinova, D., et al., Effect of 6-Day of Support Withdrawal on Stabilographic and Kinematic Parameters of Vertical Stability, 14th Conference of European Society of Biomechanics, The Netherlands, 2004, p. 323.
Timanin, E.M. and Eremin, E.V., Mechanical Impedance of Biological Soft Tissues: Possible Models, Rus. J. Biomech., 1999, vol. 3, no. 4. p. 78.
Vinogradova, O.L., Popov, D.V., Saenko, I.V., and Kozlovskaya, I.B., Muscle Transverse Stiffness and Venous Compliance under Conditions of Simulated Supportlessness, J. Gravit. Physiol., 2002, vol. 9, no. 1, p. 327.
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Original Russian Text © T.F. Miller, I.V. Saenko, D.V. Popov, O.L. Vinogradova, I.B. Kozlovskaya, 2010, published in Aviakosmicheskaya i Ekologicheskaya Meditsina, 2010, Vol. 44, No. 6, pp. 13–17.
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Miller, T.F., Saenko, I.V., Popov, D.V. et al. The effects of support deprivation and stimulation of the foot support zones on the lateral stiffness and electromyogram of the resting calf muscles. Hum Physiol 38, 763–767 (2012). https://doi.org/10.1134/S0362119712070146
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DOI: https://doi.org/10.1134/S0362119712070146