摘要：The present study aims to verify the effectiveness of the use of the plyometric method of physical training, combined with technical procedures specific to swimming and exercises designed to increase muscle volume and strength in a group of 30 children aged 10 to 12 years, females, separate into two groups, namely the control group and the experimental group. We started this research from the premise that the use in combination of plyometric contraction regimes and techniques for developing specific muscles for swimming, to which are added kinesiology methods, can lead to the development of general and specific motor capacity, increasing sports performance. Methods. In the experimental research itself we performed a preliminary study based on the use of the following methods: bibliographic study method, observation method, questionnaire survey method, which determined the level of knowledge of 13 instructors on the application of the plyometric method in swimming training, the graphic method, the method of the pedagogical experiment, the method of measurements and control tests through which we aimed to obtain the most accurate information on the targeted characteristics (motor, psychological, sociological, etc.), on the basis of which to formulate predictions and statistical-mathematical method which determined the degree of homogeneity of the studied phenomenon, as well as the degree of correlation. Results. The results of anthropometric measurements, as well as those of functional tests have shown that, to a large extent, the composition of the two groups - experimental and control, is homogeneous for each of them. Therefore, we started the experimental research from a position of balance between the two variables - the experimental group and the control group, which allowed an accurate evaluation of the final results. Conclusions. In the preliminary study, the research hypotheses confirm that plyometrics is a training method complementary to classical training, and the knowledge of the plyometric method by swimming instructors shows the effectiveness of its application to increase sports performance. At the same time, it is possible to observe the level of satisfaction on swimmers, which is increased in the case of applying the plyometric method within the combined training.
