Szukana fraza: [Abstract = "The research results were subjected to statistical analysis with the application of the programme Statistica 8.0. Average standard deviations were determined. The results of physical fitness tests were expressed in a T point scale. In the analysis of differences in distributions of analysed features between the groups the authors used a t\-Student test for independent samples, whereas the correlation between the level of physical activity and belonging to a specific group was evaluated using the chi\-square independence test."]

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