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ENERGY SUPPLY OF ATHLETES’ MUSCLES AT THE PERFORMANCE OF STANDARDIZED LOADS

A. E. CHIKOV (1), D. S. MEDVEDEV (1,2), 1-RESEARCH INSTITUTE OF HYGIENE, PROFESSIONAL PATHOLOGY AND HUMAN ECOLOGY OF THE FEDERAL MEDICAL BIOLOGICAL AGENCY OF RUSSIA, SAINT-PETERSBURG, RUSSIA,2-NORTH-WESTERN STATE MEDICAL UNIVERSITY NAMED AFTER I.I. MECHNIKOV, SAINT-PETERSBURG, RUSSIA
Research of energy supply of athletes’ muscles activity under various conditions helps to find out the power, capacity and mobility in its constituent.
Objective: to evaluate aerobic lactate and alactate influence in the body power supply during standard training tests.
Materials and methods: 30 athletes were included in the study and were examined by the following tests: the Wingate-test and Increasing test with the treadmill.
Results: Wingate-test of energy consumption performance showed 154,8±4,37 kJ/min. It was taken for aerobic capacity 46,2±1,56 kJ/min, lactate – 50,6±1,8 kJ/min, alactate – 4,5±1,5 kJ/min of them. During the increasing test the body energy consumptions total amount compiled 682,3±32,62 kJ/min over rest level. There is no any statistically proved differences (p=0,82) between the quantity energy characteristics of lactate and alactate body capacity, and they are approximately less in 14 times compare to aerobic body capacity(596,2±30,67 kJ/min).
Conclusions: Wingate-test studies indicated there is approximately equal constituents in energy consumptions: 32,6% aerobic, 35,7% lactate and 31,7% alactate, respectively. Lactate ability level in its prevalence shows statistical significant differences (p<0,05). The increasing test shows the aerobic capacity level domination in energy consumptions 87,4%, anaerobic capacity compiles 6,2% lactate and 6,4% alactate. Both tests show that alactate capacity has equal involvement in current activity (р=0,32). Length activity of the increasing testing leads to the reduced showings of maximum oxygen consumption. A high speed of aerobic capacity development permits to find out maximum aerobic capacity power in Wingate test.
Keywords: 
energy providing; sport; Wingate-test; the test with step increase in loadings.