Tendencies in Natural Selection of High Level Young Swimmers.

High performance levels in modern sport require great physical and psychological effort from young athletes. Some specialists conduct the early orientation for children with unusual abilities and gifted young ones. This problem has difficulties not only in search of such criteria but also in some social and moral aspects. The aim of the study was to find out facts of change in young swimming leaders, and to discover the reasons of this replacement. The retrospective investigation was done, using data of young swimmers demonstrating high age group performance levels. The analyses have shown a clear tendency to change selection criteria according to age group. Also the differences in biological maturity between swimmers of both sexes were revealed. The greatest variance in age development typology was observed in the age groups of 13-14 years. [ABSTRACT FROM AUTHOR]