Level of physical exercises’ mastering in structure of 11-13 yrs age boys’ motor fitness

Purpose: to find the place of physical exercises’ mastering level in structure of 11-13 yrs age boys’ motor fitness. Material: in the research 11 yrs age boys (n=58), 12 (n=76) and 13 years age (n=93) participated. Testing program included well-known tests: “Forward roll”, “Backward roll”, “Vault”, ”Climbing rope (three attempts)”, “Bridge”, “Stance on shoulder blades”. Results: By indicators of physical condition 11-13 yrs age boys statistically confidently differ one from another (р<0,001). Level of mastering of gymnastic exercises “Backward roll”, “Vault”, ”Climbing rope (three attempts)”, “Bridge”, “Stance on shoulder blades” with age statistically confidently increases (р<0,001). Conclusions: In factorial structure of motor fitness, level of physical exercises’ mastering has weight 17,5% (11 yrs age), 36,6% (12 years), 28,5% (13 years). Analysis of communities showed that in 11-13 yrs age boys training of motor abilities is effective (if they become a component of mastered motor skills).


Introduction
The problem of optimization of schoolchildren's physical education was regarded in works of Bodnar I. [1], Vas'kov Iu.V. [2], Krucevich T. et al. [9], Ivashchenko O.V. [8]. Bodnar I. stresses on need in searching new approaches to integrated physical education of different health groups' schoolchildren [1]. The authors defined urgent problems of educational process's perfection at physical culture lessons. Theoretical aspects and conditions of implementation in educational process of such innovative approaches as culturologic, competence, synergetic, axiologic, achmeologic and other are regarded. The ways of the mentioned approaches' implementation in real educational process are open. The results of innovative approaches implementation in personality oriented educational process are analyzed. It was proved that implementation of innovative approaches facilitates rising of educational process's organization. Its basis is personality oriented approach to pupils. Besides, certain difficulties in educational process's organization in comprehensive schools were found [2]. Methodic materials for planning of physical education process in comprehensive schools have been worked out [9]. Conception of physical education, which was built on the base of physical education's simulation, motor abilities' training and pedagogic control has been created. This conception includes: application of factorial and discriminant models of functional state age changes and motor fitness. The purpose of this conception is: planning of educational material, current, finalizing and stage-bystage control of children's fitness; modes of loading in a lesson and in series of lessons; regimes of alternation of relaxation and exercises [8].
In schoolchildren's physical education there marked out directions of researches, which are connected with studying of motor abilities [5,6,7] and process of motor actions' training [17,20,28]. Peculiarities of functional, coordination and power fitness of children and adolescents have been found [4,11]. Dependence of training of power loads' effects on regime of exercises' fulfillment and relaxation has been determined [18,23]. The process of motor actions' training was studied from position of interdisciplinary connections [12,13]; formation of motor competence [14,15]; formation of meta-cognitive behavior [16]; verbal perception in mastering of sport movements [19]; optimization of regimes of exercises' repetitions and rest intervals [20,26,28]. However, in available scientific literature there is a little data about wholeness of motor abilities' development and children's and adolescents' training [27,29]. Thus, study of motor fitness influence on level of physical exercises' mastering is rather relevant. In other works training of motor fitness and dynamic of physical exercises' mastering in 11-13 yrs age girls were regarded [31,32]. In our work we have studied motor fitness and dynamic of physical exercises' mastering in 11-13 yrs age boys.
The purpose of the research is to find the place of physical exercises' mastering level in structure of 11-13 yrs age boys' motor fitness.
Organization of the research: we used the following methods of research: analysis of scientific-methodic literature, pedagogic testing, methods of mathematical statistic. Testing program included well known tests. We registered: body length and mass, vital capacity of lungs (VCL), right and left hand dynamometry. We registered 05 results in the following tests: "Pressing ups", times", "legs' rising in hanging on Sweden wall position, times", "Angle on parallel bars, sec.", "Torso rising in sitting position from lying on back position during 1 min.", "Forward torso rising from sitting position (legs apart), cm", "Hanging on bent arms, sec.", ""Torso rising from lying on abdomen position during 30 sec., times", "Long jump from the sport, cm,", "Throw of filled ball (1 kg) in sitting position", "Shuttle run 4х9 m, sec." [25].
Statistical analysis: the data were processed with the help of statistical analysis program IBM SPSS 20. The used factorial analysis included implied method of principle components. Method of rotation implied Varimax with normalization of Keiser. For every variable we calculated the following statistics: mean values,standard deviations, Student's t-test for independent samples. The level of mastering was determined as correlation of successful attempts (m) and their general quantity (5): p = (m/5) x100.
12 yrs boys show confidently better results than 11 yrs boys in tests: "Chin ups in lying position, times", "Legs' rising, hanging on Sweden wall, times", "Angle on parallel bars, sec., times", "Forward torso bending in sitting position (legs apart), cm", "Hanging on bent arms, sec.", "Torso rising from lying on abdomen position during 30 sec., times", "Long jump from the spot, cm", "Throw of filled ball (1 kg) from sitting position, cm".
13 yrs boys show confidently better results in the following tests: "Pressing ups, times", "Chin ups, times", "Legs' rising, hanging on Sweden wall, times", "Angle on parallel bars, sec., times", "Torso rising from position lying on back during 1 minute, times", "Torso rising from lying on abdomen position during 30 sec., times", "Long jump from the spot, cm", "Throw of filled ball (1 kg) from
Thus, in 11-13 yrs age boys we noted positive dynamic of physical condition, motor abilities and gymnastic exercises' mastering level indicators.
For specifying motor fitness influence on physical exercises' mastering level we fulfilled factorial analysis.
Results of factorial analysis are given in tables 1-7. Inthe process of analysis in 11 yrs boys we marled out six factors, which explain 72,773% of total dispersion (see table 2-3).
Factor 1 has the highest weight (21,735%) and

05
correlates with the following tests' results: • Climbing rope (three attempts), level of mastering.
• Backward roll, level of mastering, 778. The factor was named level of mastering and motor fitness.
The factor was named physical condition. Factor 3 has weight 13,390% and correlates with the following: • Right hand dynamometry, kg --,606.
The factor was named functional state of respiratory system.
The factor was named motor coordination. Factor 6 has weight 6,920% and correlates with the following tests' results: Hanging on bent arms, sec.--,449.
The factor was named static power. • Analysis of communities showed that in motor fitness structure of 11 yrs boys the biggest influence is rendered by: "Chin ups-,897"; "Climbing rope (three attempts), level of mastering.
Factor 1 has the highest weight (36,646%) and correlates with: .
The factor was named level of mastering and motor fitness.
The factor was named physical condition. Factor 3 has weight-12,639% and correlates with the following: • Long jump from the spot, cm-,699.
The factor was named physical condition.
Analysis of communities showed that in motor fitness structure of 12 yrs boys the beggest influence is rendered by: "Backward roll, level of mastering-,902"; "Chin ups, times-,842"; "Forward roll, level of mastering -,812".
The factor was named level of mastering and motor fitness.
Factor 2 has the biggest weight-20,299% and correlates with the following results: • Angle on parallel bars, sec -,791.
The factor was named strength og abdomen muscles. Factor 3 has weight-16,126% and correlates with the following: • Left hand dynamometry, kg-,950.
The factor was named physical condition. Factor 4 has weight -6,994% and correlates with the following results: • Forward torso bending in sitting position (legs apart), cm-,821. The factor was named flexibility. Factor 5 has weight -6,821% and correlated with the following tests' results: Throw of filled (1 kg) ball from sitting position, cm -,796.

Discussion
In our work we studied assumption about wholeness of motor abilities processes'development and training from prosition of systemic approach [3,8]. We found that variation of results in total dispersion of 11-13 yrs boys by 72,773%, 74,607%, 78,737% depends on the regarded factors. Mastering level in factorial structure has weight 17,505% (11 years), 36,646% (12yeasr), 28,497% (13 PEDAGOGICS PSYCHOLOGY years). Alnysis of communities showed that in 11-13 yrs boys develppment of motor abilities is effective is they are a component of the mastered motor skills.
The same dynamic of physical exercises mastering we observed in 11-13 yrs girls. We found that variation of results in total dispersion of 11-13 yrs girls by 81,259%, 79,353%, 71,019% is conditioned by the following factors: physical condition, level of motor abilities and level of physical exercises' mastering. In factorial structure level of physical exercises' mastering has weight 16,435% (11 years), 27,963% (12 years), 17,010% (13 years) [31].
In 11-13 yrs boys we observed higher contribution of mastering level in motor fitness structure.
The conducted factorial analysis permitted to regard development of motor abilities and training as holistic process. It supplements the data of Ivashchenko O. et al. [21], Ivashchenko O. et al. [22] about effectiveness of factorial analysis application in physical education. Analysis of communities in factorial analysis permits to find the role of one or another indicator in factorial structure of the process. It points at demand in application of multidimensional mathematical statistic methods in studing of children's and adolescents' physical education laws [8,24,25,33].

Conclusions
In 11-13 yrs boys we found positive dynamic of physical condition, indicators of motor abilities' development and mastering level of gymnastic exercises.
We found that variation of results in total dispersion of 11-13 yrs boys by 72,773%, 74,607%, 78,737% depends on the regarded factors. Mastering level in factorial structure has weight 17,505% (11 years), 36,646% (12yeasr), 28,497% (13 years). Analysis of communities in factorial analysis permits to find that in 11-13 yrs boys development of motor abilities is effectice if they are a component of the mastered mototr skills.