Bioelectric activity of the brain and the predictive importance of effects of neurobiofeedback course at athletes

Works of the last years show activity of scientists on introduction of neurobiofeedback training in process of athletes training. At the same time, authors emphasize the need of further carrying out researches for this field of knowledge, first of all, caused by insufficiency of empirical data. The purpose of work was identification of athletes' brain features of bioelectric activity, and determination of the importance of neurobiofeedback effects in effectiveness forecasting of their competitive activity. With 101 athletes the neurobiofeedback course directed to increase in power of EEG in the alpha range by means of a hardware and software system of "BOSLAB-ALFA" was conducted. Prior to a training and after its termination by means of the 19-channel electroencephalograph "Neuron Range 3" "background" EEG registered. After a neurobiofeedback course the effectiveness of competitive activity at each athlete which was considered as successful was estimated if exceeded the result received at the same rank previous competitions. The statistical analysis of the obtained data was carried out by means of software packages of "StatPack" and "SPSS 13". Results of the conducted research have allowed to distinguish the peculiar "the athlete's encephalographic portrait" which is characterized by more expressed activity in a theta - and delta ranges, the insufficient relative power of brain bioelectric activity in the alpha range. And also to establish the informative indicators of post-training changes of EEG determining distinctions by success of competitive activity with an accuracy of recognition of 100%. Keeping EEG the signs characteristic of women, sportswomen differ from sportsmen in set of post-training predictors of success of competitive activity.