Abstract
Condition training is a complex and comprehensive process of implementing several programs for developing and maintaining functional and motor abilities. The subject of this research is the impact of the conducted training plan and program during the summer preparation period on motor abilities changes with soccer players of FC "RAD" in Belgrade. The sample of subjects consisted of twenty senior players, FC "RAD" in Belgrade. The first test (T1) was carried out at the beginning of the preparatory period, while the second test (T2) was carried out at the end of the preparatory period. Motor skills that affect the efficiency of expression in soccer, speed, strength, agility, flexibility and endurance were evaluated by selected tests. In the preparatory period 55 field training and 14 training sessions in the gym were realized. The obtained results indicate the major or minor changes that took place during the summer preparation period. The changes that occurred as a consequence of training are different depending on the test. In the preparation period, between T1 and T2 the greatest positive change 6.70% was recorded in the Yo-Yo intermittent recovery test level 1, while negative -11% in the series of vertical jumps test and these changes are statistically significant.