The effect of the frequency of motivational self-talk on the performance of volleyball service in adolescent female athlete

The purpose of this study was investigate effect of the frequency of motivational self-talk on volleyball learning. The method of this study is semi-experimental, which was carried out with pre-test-post-test design. Thirty high school students from Semirom were selected by purposeful sampling and categorized into three groups of 10 people (self-talk with one repetition, self- talk with three replications and control group). At first, was taken a pre-test of the volleyball service Acquisition step took place in 3 consecutive sessions. In each session, 3 blocks of 10 attempts were practiced. The group itself spoke a repeat, before every single blow to my motivational word I could use the best point to send the ball. The group of three replicates repeated the same words three times before each shot. The control group did not use any words. After the end of the acquisition, the test was taken and 48 hours later the test was taken. Analysis of variance was used to analyze the data. The significance level of P <0.05 was considered. The results showed a significant difference between the self-talk one repetition with self-talk group of three replications and the control group. Self-talk score with one repetition was significantly higher than the group of three replicates and control group. Also, self-talk with three repetitions has negative effect on volleyball service. In a general conclusion, motivational self-talk with a repetition improves the volleyball service, but motivational self-talk with three repetitions has a negative effect on the performance of the volleyball service.