DYNAMICS OF THE MORPHO-FUNCTIONAL STATE OF GIRLS 10-12 YEARS IN VOLLEYBALL PROCESS
Keywords:
physical development, functional state, girls, volleyballAbstract
In the article the dynamics of physical development, functional state of the cardiovascular system of girls
10–12 years old who are engaged in volleyball outside the training time is considered. Purpose of the Research:
To establish the influence of volleyball lessons on the morpho-functional state of girls 10–12 years old.
Materials and methods: the following research methods were used in the work: analysis of scientific and
methodological literature, anthropometry, physiological methods and processing of quantitative data by
methods of mathematical statistics.
In a research study, 32 girls aged 10–12 years participated. The obtained results: the analysis of the
results of the conducted research allowed to supplement knowledge in the field of age morphology and
physiology about the growth rates and development of girls volunteering 10–12 years old. In the course of the
study, it was found that the average grouping of body length in girls 10–12 years is higher than age standards.
The total increase in body length in girls from 10 to 12 years is 10.0 cm. The total increase in the mean group
weight of the body in girls from 10 to 12 years increased by 4.9 kg. The average group result of the chest
circumference in girls aged 10 to 12 increased by 7.5 cm. During the research, we found that a statistically
significant difference (p <0.05) was observed between girls 11 and 12 years. The obtained average group results
of the dynamometry of the right and left hand in girls 10–12 years indicate asymmetric muscle development.
During the scientific study of girls 10–12 years, positive dynamics was observed in the cardiovascular system.
The average group rate of heart rate in the resting state from 10 to 12 years decreased by 9.5 ud·min-1, which is
11.5%, indicating optimization of the cardiovascular system. Positive dynamics is observed in the indices of the
Ruffie index. In girls aged 10 to 12, the average group result was reduced by 2.6 nominal units, which is 24.5%.
The results obtained in the course of the study of the average group of body mass results, chest excursions,
dynamometry of the right and left brush, as well as the Ruffie index indicate a significant variation in girls 10–
12 years, coefficients of variation exceeding 14.6%, indicating heterogeneity of the samples. Conclusion: It is
established that volleyball exercises positively influence the development of growth processes of girls 10–12
years, improve the functioning of the functional state of the cardiovascular system.
Key words: physical development, functional state, girls, volleyball.
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