Effect of lower extremity strength training done in young male soccer players on some physiological, motoric and technical parameters during preparation periodGenç erkek futbolcularda hazırlık döneminde yapılan alt ekstremite kuvvet antrenmanlarının bazı fizyolojik motorik ve teknik parametrelere etkisi

The purpose of this study is examining effects of soccer training and lower extremity strength training done in addition to it during 8 weeks of preparation period on leg strength, anaerobic and aerobic power, speed, flexibility, passing the ball, shooting the ball and dribbling parameters of young male soccer players. For this purpose, some motoric and technical tests were applied to young soccer players and solution was sought for research's problem within the scope of research. Totally 45 students consisting of 15 sedentary and 30 soccer players who play in Trakya Fener Sports Club; 15 of them 1st experimental group 15 of them 2nd experimental group took part in research. Leg strength, vertical jump, flexibility, 20m speed and shuttle run tests were conducted to determine the motoric abilities. Mor ve Christian soccer ability skill test consisting of dribbling, passing and shooting tests was conducted to determine ability levels particular to soccer. One-Sample Kolmogorov-Smirnov tests were conducted to determine whether data shows normal distribution or not. Paired–Samples T Test was used in in-group comparisons, Variance Analysis was used in intergroup comparisons, Tukey HSD multiple comparison test was used to determine from which group difference result. Level 0.05–0.01 was accepted for relevance of difference. With respect to in-group pre-test and post-test values of 8 weeks preparation period trainings done in preseason; statistically significant difference was found in leg strength, anaerobic power, MakVO2, flexibility and shooting parameters in 1st and 2nd experimental groups, also in passing and 20m speed parameters in 1st experimental group and just in 20m speed parameter in control group (P0,05). In intergroup comparisons, statistically significant difference was found in leg strength, anaerobic power in the pre-test and post-test parameters and statistically significant difference was found in speed, shooting, passing and flexibility in pre-test parameters between 1st, 2nd experimental groups and control group. Also intergroup significant difference of 1st experimental group from 2nd experimental group and control group and difference of 2nd experimental group from control group in MakVO2, speed, flexibility, passing and shooting parameters according to values in the final test (P