摘要:The aim of the study is to examine the effect of eight-week-long training in different branches on motor performance for children aged 14-16. A total of 96 volunteers, including 69 people who are engaged in sports in different branches (tennis, volleyball and basketball) and 27 people who are sedentary, using an 8-week training program, 3 days a week, participated in the study. Motor performance development of the participants was determined with the Tennis Condition Test protocol (KTT). Paired Samples t-test was used to determine the difference between the pre-test and post-tests of the data, and the One-Way Analysis of Variance ANOVA test was used to determine the difference between the groups. As a result of this study, it was determined that 8-week branch-specific training applied to children between the ages of 14-16 improved motor performance. In order to increase the motor performance development of children in this age group, it is important to direct them to sports activities in line with their abilities. To apply it is thought that the training plans, which are specific to the branch and of a type that will support basic motor performance development, are important for the development of the basic motor characteristics and motor performance levels of children in the 14-16 age group.