Ширковец, Е.А. Физическая активность и возрастная динамика факторной структуры работоспособности = Physical Activity and Age Changes of Factorial Structure of Serviceability / Ширковец Е.А., Титлов А.Ю. // Теория и практика физ. культуры. - 2003. - № 10. - С. 56-59.
The basic purpose of the research of the structure of physical serviceability is the detection of the latent connections between the measured parameters at testing examinees and the description of them by smaller number of the generalized factors. The regrouping of the similar attributes and association in the separate components allows to use them as the integrated criteria of the serviceability. The application of the adequate methods of the multivariate statistics by the search of optimum structure of serviceability enables to solve the following tasks: to systematize the attributes adequately reflecting the condition of functional systems of an organism; to separate the invariant attributes from the interdependent; to determine information criteria of the serviceability in the researched kind of activity; to reveal the logic structure of the complete process of the competitive and training activity.