Background. Representatives of complex coordination sports are most susceptible to psychoemotional stress, since they demonstrate high sports results already at a young age. The tightening of anti-doping control has significantly reduced the possibility of using pharmacological and biologically active drugs to speed up the recovery of athletes. Against this background, in sports medicine, more attention is paid to the use of non-drug methods to improve performance and recovery in athletes. Aim to study the efficiency of the introduction of whole-body cryotherapy in the training process of female athletes of complex coordination sports (for example, group gymnastics) to increase stress resistance and reduce violations of adaptation processes as a result of neuropsychiatric overstrain. Materials and methods. During the academic-training year, 22 gymnasts received six ten-day courses of whole-body cryotherapy in the ICEQUEEN cryosauna. 19 athletes were included in the control group. The studies were conducted 3 times: before the start of the procedures, after the first course of procedures, at the end of the training year. The diagnosis of nocturnal bruxism and the definition of the psychological component of health were carried out. Total and effective albumin concentrations were determined in the blood serum with the calculation of the albumin binding reserve, helper T-lymphocytes and killer T-lymphocytes with the calculation of the immunoregulatory index. Results. After one course, there was an increase in the functional activity of serum albumins, a decrease in the number of episodes of involuntary contractions of the masticatory muscles at night, and an increase in the psychological component of health according to SF-36. After six courses of cryotherapy, the functional activity of serum albumins and the initial values of the immunoregulatory index were preserved by the end of the season, and the psychological component of health according to SF-36 was increased, while these indicators decreased in the control group. There was also a decrease in the number of episodes of involuntary contractions of the masticatory muscles at night with an increase in their number in the control group of female athletes. Conclusions. Considering the obtained results, it is possible to recommend the use of whole-body cryotherapy in gymnasts during the preparatory and recovery periods of the annual training cycle in order to increase stress tolerance and prevent psychoemotional overstrain.

Sports form the metabolic response caused by the body’s adaptation to increased physical stress, which leads to the restructuring of metabolism for energy and plastic maintenance of sport activities. The restructuring of carbohydrate and lipid metabolism is caused primarily by the increasing energy request body, depending on type and intensity of sports activity. In this research blood serum lipids were studied depending on the orientation of the training process. A total of 108 athletes (men and women) aged 15 to 20 years of different sports qualification (I sports category, Candidate Master of Sports and Master of Sports) were examined, and a control group of 28 persons of the same age and gender. Depending of the direction of the training process there were isolated 3 groups: cyclical sport that develops mainly endurance (academic rowing); sports of complex nature (football, volleyball, handball and Nordic combined); and complex coordinated sports (artistic gymnastics). Were studied: total cholesterol, high density lipoproteins, low-density lipoproteins, atherogenic coefficient and triglycerides. The study was conducted in the preparatory period of the training cycle. The research had shown that the level of blood lipids depends on the orientation of training process and sports training. The most marked reduction of total cholesterol and high-density lipoproteins has been observed both in men and women in cyclic kinds of sports, developing mainly stamina that indicates that intense exercise in athletes who train primarily for endurance, cause the connection of lipids to the processes of energy supply of muscle activity.

Young men of call-up age with neurocirculatory were asthenia were examined for autonomic regulation of cardiac activity and vasodilatory reserve of the arteries. The functional state of the autonomic nervous system (ANS) was studied with the aid of rythmography with analyse of heart rate variability. The following parameters were studied: vegetative regulation type, responsiveness of departments of ANS and autonomic provision of cardiac activity. The type of vegetative regulation was determined by the mean value of RR interval and indication of the heart rate variability (∆RR). Reactivity of parasympathetic and sympathetic divisions of the ANS and autonomic support of cardiac activity were investigated using breathing test. To ensure vegetative dysadaptation cardiac activity includes reaction with low vegetative coverage of both divisions of the ANS and paradoxical reaction in which there is a decrease in ∆RRmax (instead of increase) and an increase in ∆RRmin instead of decrease. These reactions indicate autonomic dysfunction. Vasodilatory reserve of the arteries was investigated using ultrasonography of the brachial artery with compressive sample and determination of endothelium-dependent vasodilation. It was found that in boys with neurocirculatory asthenia vagotonic and sympathetic types of vegetative regulation are often determined by disadaptative vegetative provision of cardiac activity, which is accompanied by endothelial dysfunction with reduced vasodilator reserve of the arteries.