Special aspects of motor fitness influence on level of 11-13 years ’ age girls ’ physical exercises ’ mastering

Purpose: to find special aspects of motor fitness influence on level of 11-13 years’ age girls’ physical exercises’ mastering. Material: in the research 11 years’ age girls (n=51), 12 years’ age (n=54) and 13 years (n=63) participated. Results: By physical condition indicators all girls statistically confidently differ (р<0.001). We registered increase of body height indicators (by 12%), body mass (13%), vital capacity of lungs (by 12.8%), right hand strength (by 15%) and left hand strength (by 13.8%). In girls of 11-13 years’ age we registered positive dynamic of physical condition, motor abilities and level of gymnastic exercises’ mastering indicators. It was found that in total dispersion results’ variation by 81.259%, 79.353%, 71,019% are determined by such factors: physical condition, motor abilities, level of physical exercises’ mastering. In factorial structure level of physical exercises’ mastering has weight 16.435% (11years), 27.963% (12 years) and 17.010% (13 years). Conclusions: Analysis showed that in 11-13 years age girls motor abilities’ training level is effective if it becomes a component of mastered motor skills.

Introduction 1  The problem of schoolchildren's physical education optimization was studied in works by I. Bondar [1], Iu.V. Vas'kov [2], T. Krucevich et al. [9].The authors stress on demand in new approaches to integrative physical education of different health groups schoolchildren [1], to physical ducation's organization of comprehensive educational establishments' pupils [2], to planning physical culture trainings process in comprehensive educational establishments [9].
In schoolchildren's physical education directions of researches, which are connected with special aspects of motor abilities [5,6,7] and motor actions' training [17,20,28] are underlined.Specific features of children's and adolescents' functional, coordination and power fitness are determined [4,11].Dependence of power loads' training effects on regime of exercises' practicing and rest is found [18,23].The process of motor actions' training was studied from positions of interdisciplinary connections [12,13], specificities of motor competence formation [14,15], meta-cognitive behavior formation [16], verbal perception in the process of sport movements' mastering [19] and optimization of regimes of exercises' repetitions and rest intervals [20,26,28].
However, in available literature there are few data bout wholeness of motor abilities training of children and adolescents [27,29].Thus, study of special aspects on level of physical exercises' mastering is rather relevant.
The purpose of the research is to find special aspects of motor fitness influence on level of 11-13 years' age girls' physical exercises' mastering.

participation in experiment.
Organization of the research: in the process of the research we registered: body height, body mass, vital capacity of lungs (VCL), hand dynamometry of right and left hands.We also registered results in the following tests: "Pressing ups in lying position, times", "Chin ups in lying position, times", "Legs' rising, hanging on wall bars, times"; "Angle on parallel bars, sec.";"Torso rising in sitting position from lying on back position during 1 minute";"Forward torso bending from sitting position with 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"; "Shuttle run, 4х9 m, sec."[11].
Statistical analysis: was fulfilled with the help of standard program of statistical analysis IBM SPSS 20.We used factorial analysis (principle components analysis).Besides, we used access organization: varimax with Kaiser's normalization.For every variable we calculated the following: mean values, standard deviations, Student's t-test for independent samples.Level of mastering was determined as relation of successful attempts (m) to their total quantity (5): p = (m/5) x100.

Results
Results of the research are given in tables 1, 2. By physical condition indicators, 11-13 years age girls statistically confidently differ one from another (р<0.001).We registered increase of body height indicators (by 12%), body mass (13%), vital capacity of lungs (by 12.8%), right hand strength (by 15%) and left hand strength (by 13.8%).
12 years' girls demonstrate confidently better results than 11 yrs girls in tests: "Pressing ups in lying position",

PEDAGOGICS PSYCHOLOGY
"Chin ups in lying position", "Rising legs, hanging on wall bars", "Angle on parallel bars", "Forward torso bending from sitting position with legs apart", "Hanging on bent arms", "Torso rising from lying on abdomen position during 30 seconds", "Long jump from the spot" and "Throw of filled ball (1 kg) from sitting position".
13 yrs girls showed confidently better results than 12 yrs girls in the following tests: "Pressing ups in lying position", "Chin ups in lying position", "Rising legs, hanging on wall bars", "Angle on parallel bars", "Torso rising in sitting position from lying on back position", "Throw of filled ball (1 kg) from sitting position" and "Shuttle run 4х9 m".
Thus, in girls of 11-13 years' age we registered positive dynamic of physical condition, motor abilities and level of gymnastic exercises' mastering indicators.
For specifying motor fitness influence on physical exercises' mastering by 11-13 yrs girls we fulfilled factorial analysis.
In the process of analysis we marked out in 11 yrs girls seven factors, which explain 81.259% of total dispersion (see table 2).
Factor 1 is the most influential (21.735%).The factor correlated with results of the following tests: Angle on parallel bars-,858.
Pressing ups in lying position-,766.This fractor as called "relative strength".Factor 2 has weight 16.435% and correlated with the following tests' results: • Long jump from the spot-,885.

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Horse vault, level of mastering -,784.The factor was called "Level of physical exercises' mastering".
Factor 6 contributes 7.604% and correlates with the following: • Torso forward bending from sitting position with legs apart--,911.
Factor 7 contributes 6.246% and correlates with the following: • Torso rising in sitting position from lying on back position during 1 minute-,616.
Factors 4-7 specify the names of factors 1-3 and point at interconnection of level of exercises' mastering with physical condition and motor fitness indicators of 11 yrs.girls.
In 12 yrs girls analysis showed six factors, which explain 79.353% of total indicators' dispersion (see table 2).Factor 1 contributes the most (27.963%) and correlated with the following tests' results: • Forward roll, level of mastering-,905.

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The factor was called "Level of physical exercises' mastering".

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Long jump from the spot -,526.This factor was called "relative strength of abdomen muscles".
Factor 4 contributes 9.373% and correlates with the following results: • Throw of filled ball (1 kg) from sitting position--,860.

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Long jump from the spot--,524.This factor was called "Speed power".Factor 5 contributes 8.449% and correlates with the following results: • Forward torso bending from sitting position with legs apart --,750.
• Torso rising to sitting position from lying on back position during 1 minute -,684.
Factor 6 contributes 6.541% and correlates with the following results: • Bridge, level of mastering-,821.
Torso forward bending from sitting position with legs apart, cm ,405 12 Hanging on bent arms, sec.
Factors 5-6 supplement each other and characterize flexibility.
Analysis of communalities showed that motor fitness of 12 yrs.girls is influenced most of all by: "Pressing ups in lying position"-,892; "Chin ups in lying position"-,887; " Horse vault, level of mastering" -,884.
Analyzing 13 yrs.girls we marked out five factors, which explain 71.019% of total indicators' dispersion (see table 2).

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Torso rising to sitting position from lying on back position during 1 minute -,782.
The factor was called "strength of abdomen muscles".Factor2 contributes 17.010% and correlates with the following tests' results: • Stance on shoulder blades, level of mastering-,940.

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Forward roll, level of mastering-,750.The factor was called "level of acrobatic exercises' mastering".
Factor 3 contributes 13.865% and correlates with the following tests' results: • Climbing rope, three times, level of mastering-,857.

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Horse vault, level of mastering -,645.The factor was called "level of gymnastic exercises' mastering".
Factor 4 contributes 13.865% and correlates with the following tests' results: • Body mass -,728.Analysis of communalities showed that motor fitness of 13 yrs.girls is influenced most of all by: " Bridge, level of mastering" -,910; "Stance on shoulder blades, level of mastering"-,910 and "Forward roll, level of mastering"-,878.

Discussion
In our study we researched the assumption about wholeness of motor abilities' development and training , basing on systemic approach [3,8].It was found that results' variation in total dispersion in 11-13 yrs.girls by 81.259%, 79.353%, 71.019% depends on the regarded factors.Level of physical exercises' mastering in factorial structure has weight 16.435% (11 years), 27.963% (12 years) and 17.010% (13 years).Analysis of communalities showed that in 11-13 yrs girls motor abilities' training is effective if it becomes a component of the mastered motor skills.The presented data supplement researches of Xu X., Ke F. [30], E. Repko et al. [10], O.M. Khudolii et al. [28].
The fufilled factorial analysis permitted to regard motor training processes and training as holistic process.It supplements the data of Ivashchenko O. et al. [21,22] about effectiveness of factorial analysis in physical education.Analysis of communalities in factorial analysis permits to find the role of separate indicator in factorial structure of the studied process.It points at need in application of mathematical statistic's multi-dimensional methods for study the laws of children's and adolescents' physical education [24,25].

Conclusions
In 11-13 yrs girls we registered positive dynamic of physical condition, motor abilities indicators as well as level of gymnastic exercises' mastering.
It was found that results' variation in total dispersion in 11-13 yrs.girls by 81.259%, 79.353%, 71.019% depends on the regarded factors: physical condition, motor abilities' level and level of physical exercises' mastering.In factorial structure level of physical exercises' mastering contributes 16.435% (11 years), 27.963% (12 years) and 17.010% (13 years).Analysis of communalities showed that in 11-13 yrs girls motor abilities' training is effective if it becomes a component of the mastered motor skills.

Table 2 .
Matrix of factorial analysis results of 11-13 yrs girls' testing.Access organization: varimax with Kaizer's normalization