Factor analysis of indicators characterizing the structure of physical fitness of primary school age students in Pinsk and Pinsk district of Brest region
Keywords:
physical development, physical fitness, functional status, junior school age, factor analysisAbstract
To implement a differentiated approach to assessing the level of physical fitness of primary school students, a factor analysis was carried out, which included 30 variables.
Purpose of the study – to carry out a factor analysis of indicators characterizing the structure of physical fitness of primary school students.
Objectives: describe the procedure of factor analysis, which is based on anthropometric and functional indicators, results of physical fitness; identify indicators characterizing the physical fitness of children of primary school age. The study involved 506 children aged 6–10 years from preschool educational institutions and lower grades of secondary schools, of which: 256 girls and 250 boys. Of the total number of children, 10% live in the Pinsk region.
The factor analysis procedure consisted of four main stages: 1. Calculation of the correlation matrix for all variables participating in the analysis. 2. Assessing the applicability of factor analysis to the sample. The study applied the Kaiser-Meyer-Olkin (KMO) test of sampling adequacy and the Bartlett test of sphericity. 3. Factor extraction. A preliminary analysis made it possible to identify the main factors for determining the physical fitness of children of primary school age. 4. Selection, rotation and interpretation of factors to create a simplified structure, which corresponds to a large loading of each variable on only one factor and a small loading on all other factors.
As a result of the analysis, 6–8 factors were identified in each age group of boys, and 6–7 factors in each age group of girls. These studies indicate the multidirectional contribution of the variables used to the structure of indicators affecting the level of physical fitness of students in grades 1–4.
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