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Abstract

Purpose: to work out program of differentiated correction of 6-10 years' age schoolchildren's postures by means of physical education. Material: At initial stage (medical examination) 216 schoolchildren (girls and boys of 6-10 years' age) were examined. In children, who had no visible posture disorders, (n=156) we registered indicators of bioelectrical activity of back skeletal muscles on both sides of backbone. For this purpose we used method of surface electromyography. In the next stage 107 children of primary school age participated. Written consents of parents for children's participation in experiment were received. Results: the researches showed that stretched muscles of convex side generate bioelectrical activity of higher amplitude that the muscles of concave side. It causes backbone bending to the side of weakened muscles and creation of favorable for further backbone deformation's progressing conditions. The value of muscular tonus (in the form of electromyography signal from symmetric muscles of backbone) can be an informative indicator for diagnostic of backbone position's disorders and for efficiency of posture disorders in frontal plane efficiency. For local influence on back muscles we used asymmetric loads, which selectively strengthened muscles on the side of low reflex excitation. Besides, we used exercises, oriented on muscles' stretching and relaxation on the side of increased reflex excitation. Such methodic approach permits to reduce the difference of impulses flow from periphery (of muscles) between right and left torso sides to central nervous system. Conclusions: it is recommended to conduct current control over children's postures on the base of electromyography signals' form back symmetric muscles registration. The control data will permit for physical culture teacher to determine efficiency of correction trainings and analyze the whole system of correction influences. It will also permit to promptly correct loads, analyze correctness of exercises' fulfillment, and introduce individual changes in content of health related trainings.

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“…Children with low level of motor skills are not selfassured and inclined to avoid physical activity (Chen & Housner, 2013;Nosko, Razumeyko, Iermakov, & Yermakova, 2016). Modeling is one of the methods of studying of physical training process efficiency.…”

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“…In our study, the methods of multivariate analysis for these purposes were not used, and therefore the creation of the algorithm for the completion of teams in aerobic exercise is the first developed problem. The analysis of literary data (Arziutov, G., Iermakov, S., Bartik, P., Nosko, M., & Cynarski, W. J., 2016;Boichuk, R., Iermakov, S., & Nosko, M., 2017;Kriventsova, I., Iermakov, S., Bartik, P., Nosko, M., & Cynarski, W. J., 2017;Nosko, M., Razumeyko, N., Iermakov, S., & Yermakova, T., 2016;Osipov, A. Y., Kudryavtsev, M. D., Iermakov, S. S., & Jagiełło, W., 2017) showed that most authors in determining the basic principles of constructing a training process one of the main consider the principle of combining team training and individualization. At the same time, if cyclic and gaming sports already have some work on specific recommendations for the construction of a training process for each team (Pomeshchikova, I., Iermakov, S., Bartik, P., Shevchenko, O., Nosko, M., Yermakova, T., & Nosko, Y., 2016;Zhanneta, K., Irina, S., Tatyana, B., Olena, R., Olena, L., & Anna, I., 2015), then sports aerobics is just beginning to develop the theoretical, methodological and organizational foundations of the unity of team and individual approach to the training process of athletes.…”

“…Therefore, from this point of view, our work represents a certain novelty. It should be noted, however, that some authors (Nosko, M., Razumeyko, N., Iermakov, S., & Yermakova, T., 2016) try to give an integral assessment of individuality, taking into account a wide range of indicators. These indicators include the properties of the nervous system in conjunction with the predominance of one of the cognitive types and the development of certain physical qualities and psychophysiological abilities.…”

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“…(Kostyuchenko & Orekhov, 2010). Recent studies have found the persistent health deterioration trend in the student communities in Russia (Bal'sevich, 2010), and it is natural that a special emphasis is now made on the young people's physical activity encouragement initiatives (Lubysheva, 2012) viewed by researchers and analysts as pivotal for the health protection and improvement; non-medical disease prevention (Garkusha, 2014;Skead & Rogers, 2016); muscular imbalance correction (Aftimichuk & Varvarich, 2013;Nosko, Razumeyko, Iermakov, & Yermakova, 2016); body adaptability increasing (Vitun, 2009;Kolokoltsev, Buykova, & Bulnaeva, 2017); and life prolongation (Blair, Cheng, & Holder, 2001; initiatives. Students have long been ranked on top of the health risk groups vulnerable to many diseases due to high academic loads and associated neuro-psychic stresses (Abdullina, 2014;Lebedinsky, & Kolokol'tsev, 2016); physical inactivity (Prosvirina, Kolokoltsev, Kolchanova, Cieslicka, & Stankiewicz, 2015); and poor if any motivations for healthy lifestyles (Hortigüela-Alcalá, Pérez-Pueyo, & Moncada-Jiménez, 2015;Gavrilik, 2016).…”