Due to the increasingly high level of performance reached in major competitions, the work of the trainer has become increasingly complex and special, in an attempt to transform high-performance training into a more modern and harmonious process. Scientific approach of training can be used to enhance performance levels of professional athletes in various fields of sports. Scientific research in the field of performance sports is imperiously necessary. The former needs to allow the discovery of quick and modern solutions, which are easy to implement and customize, with the aim of raising the efficiency of sports training. Scientific research alone can bridge together various fields and disciplines - evidently more so than the trainer or athlete. There is an acute feeling that high-performance training cannot continue to evolve unless the above are taken into consideration.