Special physical preparedness of young swimmers aged 15-17 of both sexes with different rate of biological maturation

It was discovered that among young swimmers aged 15-17, the majority of athletes was the group of accelerators (44.2%). The group of retardants turned out to be somewhat smaller (34.9%). At the same time, all athletes, swimmers aged 15-17, without exception, had a delay in biological maturation. Swimmers with a delay in puberty equal to 2.5-3.5 years constituted the largest group (56.5%). The highest level of sports performance is found among median male swimmers. The level of sports results was somewhat lower among the swimmers of the accelerators, and the lowest among the swimmers of the retardants. The highest level of sports performance was observed among female athletes who were 2.5-3.5 years behind in physical development and 4 years or more, while sports results were the lowest among female swimmers with a delay in biological maturation for 1-2 years. It was discovered that among male swimmers aged 15-17 there was a clear pattern: with an increase in the maturation delay time, the indicators of power capabilities, total external mechanical power and active resistance gradually decrease. In female swimmers aged 15-17, a slightly different situation is observed, some indicators of power capabilities, as well as the values of active hydrodynamic resistance and total external mechanical power were the highest in female athletes with the greatest delay in biological maturation.