ASSESSMENT OF EFFECTS OF NON-FUNCTIONAL OVERREACHING AND OVERTRAINING ON RESPONSES OF SKELETAL MUSCLE AND CARDIAC BIOMARKERS FOR MONITORING OF OVERTRAINING SYNDROME IN ATHLETES.

The aim was to study the effects of non-functional overreaching and overtraining on responses of biomarkers of the skeletal muscle cell (CK-NAC) and cardiomyocyte injury (cTnI and CK-MB) and their use in monitoring OTS. In 43 athletes with non-functional overreaching (NFO)/overtraining syndrome (OTS) and 40 athletes without NFO/OTS -control athletes (CA) off-season measurements of creatine kinaze (CK-NAC and CK-MB) were performed, followed by peak-season evaluation of the dynamic of CK-NAC, CK-MB and cardiac troponin I (cTnI) changes. CK and cTnI levels were obtained 24 hrs before the strenuous exercise appropriate to the sport-specific peak-season intensity, immediately after completion of the work-load, after 6, 48, and 72hrs.

ASSESSMENT OF RISKS OF DEVOLEPMENT OF ARTHROFIBROSIS AND PREVENTION OF KNEE EXTENSION DEFICIT SUBSEQUENT TO AN ANTERIOR CRUTIATE LIGAMENT RECONSTRUCTION.

The goal of our research was to study the impact of various risk-factors on the development of arthrofibrosis in patients with knee extension restriction on an early stage. The aforementioned research was carried out in the Sports Medicine and Rehabilitation Clinical Center and First University Clinic of Tbilisi State Medical University during the 2016-2020 y.y.

THE EFFECTS OF NON-FUNCTIONAL OVERREACHING AND OVERTRAINING ON AUTONOMIC NERVOUS SYSTEM FUNCTION IN HIGHLY TRAINED ATHLETES.

Aim of the study was to compare the ANS functioning, as measured by heart rate variability (HRV), in athletes with non-functional overreaching (NFO) and overtraining syndrome (OTS) and in athletes without NFO/OTS. In 43 athletes with NFO/OTS, 40 athletes without NFO/OTS, as well as in 35 sedentary subjects the ANS function was evaluated with the Autonomic Balance Test, based on the HRV analysis of resting heart rate recordings. Results of the study show lower HRV and lower vagal influence along with increased sympathetic cardiovascular control in athletes with non-functional overreaching and particularly in athletes with overtraining, than in highly trained athletes without NFO/OTS.

[Athletes' physical working capacity].

Physical working capacity (PWC) and maximum oxygen consumption (VO2max) depend on athlete's sports activity. Average amount of PWC for qualified athletes in cyclic kinds of sports activity is 1586+/-339.8 kgm/min (21.

Lower extremity vein digital photoplethysmography in highly qualified football players and wrestlers.

Modern sport, along with the high technical, tactic and psychological readiness, requires good physical preparation achieved by a big physical load during trainings and competitions. Aim of the investigations was to study lower extremity venous system functional condition during physical load in highly qualified football players and wrestlers. Highly qualified 25 football players and 30 wrestlers, of age 18-25 years, were studied.