Dr. Hab., Professor N.I. Dvorkina¹
PhD, Associate Professor O.S. Trofimova¹
M.A. Marinovich¹
Ya.A. Manakova^1
1Kuban State University of Education, Sport and Tourism, Krasnodar

Objective of the study was to assessment of the manifestation of sexual dimorphism in the structural components of physical performance of children aged 5-7 years.
Methods and structure of the study. In the pedagogical experiment conducted on the basis of the kindergarten No. 103 of the preschool educational institution of the city of Krasnodar, girls and boys aged 5,5 to 6,0 years (n=28) and 6,0 to 6,5 years (n=28), respectively 6,5 to 7,0 years (n=20) and 7,0 to 7,5 years (n=20) took part. The following structural components of physical performance (PWC150) were subjected to statistical analysis: heart rate, body weight, body length, 10 squats in the first load, 20 squats in the second load and work power.
Результаты исследования и выводы. It was found that in the annual dynamics of PWC150 in senior preschool children in relation to the initial indicators, in most cases reliable differences in sexual dimorphism were revealed between boys and girls in the age range from 5,5 to 7,5 years. In the remaining structural components of PWC150, its initial indicators of relative differences between boys and girls aged 5,5 to 7,5 years were in the range from 0,91 to 5,71%. Thus, the obtained results of the annual dynamics of the initial structural components of physical performance of senior preschool children prove the need for further research to substantiate the choice of the most effective means and methods of physical education.

Keywords: sexual dimorphism, preschool children aged 5-7 years, physical performance and its structural components.

References

1. Dvorkina N.I., Dvorkin L.S. Polovoy dimorfizm v tempakh razvitiya fizicheskikh kachestv detey 3-6 let [Sexual dimorphism in the rate of development of physical qualities of children aged 3-6 years]. Kultura fizicheskaya i zdorovye. 2015. No. 4 (55). pp. 88-95.
2. Dvorkina N.I. Polovozrastnyye osobennosti vzaimozavisimosti v razvitii intellektualnykh sposobnostey i fizicheskikh kachestv detey doshkolnogo vozrasta [Age and gender features of interdependence in the development of intellectual abilities and physical qualities of preschool children]. Fizicheskaya kultura, sport – nauka i praktika. 2013. No. 3. pp. 5-7.
3. Krivolapchuk I.A., Chernova M.B., Myshyakov V.V. Klasternaya struktura fizicheskoy rabotosposobnosti i dvigatelnoy podgotovlennosti shkolnikov 7-8 let [Cluster structure of physical performance and motor fitness of 7-8 year old schoolchildren]. Uchenyye zapiski universiteta im. P.F. Lesgafta. 2017. No. 7 (149). pp. 123-133.
4. Lapitskaya E.M. Gendernyye razlichiya v fizicheskom i motornom razvitii detey 5-7 let [Gender differences in physical and motor development of children aged 5-7 years]. Novyye issledoaniya. 2009. No. 3 (20). pp. 73-79.
5. Chermit K.D., Mamgetov K.Yu. Proyavleniye polovogo dimorfizma v fizicheskom sostoyanii detey Respubliki Adygeya [Manifestation of sexual dimorphism in the physical condition of children of the Republic of Adygea]. Integrirovannaya antropologiya v reshenii zadach zdorovogo obraza zhizni [Integrated anthropology in solving problems of a healthy lifestyle]. Maykop: AGU publ., 1995. pp. 212-213.
6. Chernyshenko Yu.K., Balandin V.A., Kuznetsova V.E. Polovozrastnyye osobennosti dinamiki razvitiya fizicheskoy podgotovlennosti doshkolnikov 4-5 let [Age and gender characteristics of the dynamics of development of physical fitness of preschoolers 4-5 years old]. Fizicheskaya kultura, sport – nauka i praktika. 2016. No. 2. pp. 18-21.