Changes in Anaerobic Power of Youth Soccer Players in an Annual Training Cycle

Abstract

Introduction: It is a well-known fact that short high intensity actions are decisive for football game. The energy for these actions is ensured from anaerobic energy system. The lack of information about this subject defines the aim of our research which was set as research of changes of indicators which characterize anaerobic power of youth football players. Methodology: It includes the following methods of research: anthropometry, chronometry, test of exercise bike and statistical analysis. Results: The data from Wingate test are proof for increasing of the average values of the most informative signs of this test. We found out statistical improvement of the values of the signs such as Peak power (PP), Average power (AP) and Minimal power (MP). Their values increase from 539.96 to 721.54 watts for PP; from 410.58 to 514.07 watts for AP and from 277.23 to 339.15 watts for MM. The same improvement of 1.66 seconds we can see from the data of the field test "3x50 m shuttle". Discussion and conclusions: As a whole this research found out improvement of the informative signs from laboratory and field tests in the annual training cycle. Statistical nonsignificant improvement was found only in the indicator MM from second to third test. This fact leads us to the conclusion that this indicator is not good enough to detect changes in a short period of time. We also found improvement of the PP and AP respectively with 33.63 and 25.20%. Our study is in unison with the conception that the period of 13-14 years is suitable for development of the speed and speed endurance abilities.