Special aspects of coordination ability development of 7–8 year-old acrobatic rock’n’roll athletes

Acrobatic rock’n’roll – is a complex coordinated sport that is a synthesis of dance and acrobatics. In the performance of competition program is very important manifestation of coordination abilities of athletes [1; 3]. Coordination abilities can be defined as a set of human properties, manifested in the process of solving motor tasks of different coordination complexity and determine the success of controlling motor actions and their regulation. In connection with the complex character of coordination abilities, naturally, there is no generalized indicator of the level of their development [5]. For this, a number of criteria are used, the most important of which are:


Introduction
Acrobatic rock'n'roll -is a complex coordinated sport that is a synthesis of dance and acrobatics.In the performance of competition program is very important manifestation of coordination abilities of athletes [1; 3].Coordination abilities can be defined as a set of human properties, manifested in the process of solving motor tasks of different coordination complexity and determine the success of controlling motor actions and their regulation.In connection with the complex character of coordination abilities, naturally, there is no generalized indicator of the level of their development [5].For this, a number of criteria are used, the most important of which are: -during the development of the new movement, or some combination -than it is shorter, the higher the coordination abilities; -time required to rebuild their motor activities in accordance with the changing situation.Under these conditions, the ability to choose the most optimal plan for a successful solution of the motor task is considered a good indicator of coordination capabilities; -biomechanical complexity of the motor actions performed or their complexes (combinations).
It is established that coordination abilities ensure economical expenditure of energy resources of young athletes, which affect the amount of their use, since the muscular force, precisely dosed in time, space and as it is filled, and the optimal use of the corresponding phases of relaxation lead to rational expenditure of forces [2; 4; 5].Literary sources do not fully cover the development of the coordination abilities of 7-8 year-old acrobatic rock'n'roll ath-letes.In the training process with acrobatic rock'n'roll is not at the proper level, attention is paid to their development.
Despite this, our study of the specifics of the development of the coordination abilities of 7-8 year-old acrobatic rock'n'roll athletes is topical [5; 7].

The purpose of the research
To determine the dynamics of development of coordination abilities of 7-8 years old acrobatic rock'n'roll athletes.

Objectives of the study:
1. To study the problems of developing the coordination abilities of 7-8 years old acrobatic rock'n'roll athletes.
2. Determine the content and features of the formation of coordination abilities among 7-8 years old acrobatic rock'n'roll athletes.

Material and Methods of the research
The study was conducted from september 2016 to march 2017, the study used the following research methods: theoretical analysis and generalization of data from special scientific and methodological literature; pedagogical observation; pedagogical testing; methods of mathematical statistics.16 acrobatic rock'n'roll athletes were tested at the beginning and at the end of the study.

Results of the research and their discussion
At the beginning of the school year, in mid-september, the first testing of the development of the coordination abilities of 7-8 years old acrobatic rock'n'roll athletes was conducted,

SLOBOZhANSKyI heRALD Of ScIeNce AND SPORT
which allowed to determine their initial level.Test results are presented in the table 1.During pedagogical observation, the training process with acrobatic rock'n'roll was conducted in accordance with the curriculum.
In the study of the development of the coordination abilities of 7-8 years old acrobatic rock'n'roll athletes, we used exercises in the training and educational process.The training process of rock'n'roll athletes was conducted according to the traditional method.To determine the changes in physical fitness indicators during the school year, we used Student's t-test to compare the indicators at the beginning and at the end of the study (table 3).
Comparison of the initial and final testing has shown growth in all tested parameters (figure 1-5).All changes in the indicators for all tests are statistically reliable (Р<0,05).

number, times
Considering the average changes, it can be noted that the increase in the indicators of development of coordination abilities among 7-8 years old acrobatic rock'n'roll athletes is uneven.
Prospects for further research will be directed to the search for new means and methods for developing the coordination abilities of 7-8 years old acrobatic rock'n'roll athletes.
conflict of interests.The authors declare that no conflict of interest.financing sources.This article didn't get the financial support from the state, public or commercial organization.

fig. 1 .
fig. 1. Results of the test "shuttle run": row 1 -indicators of initial testing of athletes; row 2 -indicators of finaltesting of athletes.

Table 2 The results of the final testing of the development of the coordination abilities of 7-8 years old acrobatic rock'n'roll athletes (n=16) Indicators № c. u. Shuttle run (s) Static equilibrium (s) Throwing and catching the ball (number of times) Reflection the ball from the floor (number of times) Jumping rope (number of times)
In mid-march, we conducted repeated testing on the same tests and in the same sequence.Test results are presented in the table 2.