Özet:

The purpose of this study was to examine effect of 8-week strength training on motor abilities of male tennis players between aged 12-14 years. The total 20 athletes which played in the Club of Ankara Tennis participated in the study, as experimental group n=10, Age:13.10±0.87 years, Height:152.90±4.22 cm, Body mass:40.64±5.72 kg and control group n=10, Age:13.10±0.87 yıl, Height:152.30±4.73 cm, Body mass:39.35±3.62 kg . The experimental group performed the strength training for 8 weeks in addition to tennis training. The control group performed only tennis training. The motor abilities were measured before the strength training period pre-test and after the strength training post-test for the experimental and control group. The results of pre-test of experimental and control group were defined as a co-variance and the difference between post-tests of variables was compared in univariate co-variance analysis. The difference between some performance variables of experimental and control groups was determined by using independent t test. The level of significance was set at p≤0.05. There was no significant difference between heights of the experimental and control group and their body weights p>0.05 . There were no significant difference between results of peak power, mean power and fatique index of Wingate test performed by the experimental and control group p>0.05 . There was significant difference between the result of relative mean power of Wingate test performed by the experimental and control group p0.05 , there was significant difference between those of 10-m sprint durations p

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