<bold>Background:</bold> The aims of this study were: (1) to characterize the training load structure and the applied training means in typical microcycles of the transition period and the competitive season administered to young soccer players, and (2) to present exemplary training units of the competitive and the transition periods.
<bold>Material/Methods:</bold> 20 young soccer players (12-13 years old) took part in the study. Jastrzębski's method based on Sozański and Śledziewski was applied to register and monitor the training load. Data was analyzed regarding the information range (general or specific drills) as well as energetic zones (aerobic, mixed aerobic-anaerobic, anaerobic lactate or anaerobic alactate drills).
<bold>Results:</bold> The results of study show crucial differences in the applied training means in the analyzed microcycles. In a typical microcycle of the transition period general drills predominate, while during the competitive period - specific drills prevail. The total effective time of training was longer in the competitive season microcycle. It is a proper relationship according to the theory of sport training.
<bold>Conclusions:</bold> The range of the training load registered in the competitive season is in line with other authors' research where league matches and small-sided games were used particularly often. The studied microcycles in the competitive season can be model ones and can be used in the training process of young football players.
Financed by the National Centre for Research and Development under grant No. SP/I/1/77065/10 by the strategic scientific research and experimental development program:
SYNAT - “Interdisciplinary System for Interactive Scientific and Scientific-Technical Information”.