The knowledge of biochemical processes that appear during a physical effort, actually, has a major importance for the scientific practice of sport process. The performance sport trainings are inconceivable without a biochemical control. Due to clinical and biochemical investigations, there is a potential of analyzing and control of the sports training. While planning and implementing the training program, the coach gets the possibility to analyze the efficiency, intensity and the volume of physical exertion. The trainer who in the training process is based on the results of biochemical investigations, can essentially expand the methodological possibilities of training athletes.