Energy supply of athletes’ muscles at the performance of standardized loads

Abstract

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.