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GAS EXCHANGE PARAMETERS IN CYCLISTS PERFORMING AN ANAEROBIC LOAD TEST WITH PRIOR EXPOSURE TO LASER RADIATION

T. M. BRUK, K. A. STRELYCHEVA, O. V. GOLOVESHKO, T. I. SAMOYLINA SMOLENSK STATE ACADEMY OF PHYSICAL CULTURE, SPORTS AND TOURISM, SMOLENSK, RUSSIA

Objective: to estimate the parameters of external respiration of elite cyclists under an anaerobic load with prior exposure to laser radiation for enhancing of their physical performance.
Materials and Methods: 18 elite cyclists took part in the research. They performed a 45 seconds cycling test with a mechanical load, equal to 3% of their body weight. Before the start of the test the cyclists were given the task to do the largest possible number of turns of ergocycle during the test. Before, during, and within 8-10 minutes after termination of the test gas exchange parameters were investigated. Athletes of the experimental group held the laser procedure of the carotid and radial artery in the scanning mode frequencies (from 80 to 1500 Hz) an hour before the test. The athletes’ arteries were alternately exposed (1 second on each artery) during 8 minutes. Athletes of the control group were exposed to placebo.
Results: in the experimental group the volume, the absolute power of the activity and the number of turns of pedals increased greatly. However, the relative power of work and endurance ratio did not change significantly.
Conclusions: the low-intensity laser light exposure in the scanning mode frequencies selectively affects the indexes of anaerobic endurance of athlete. Laser treatment doesn`t not substantially change the nature of the metabolic processes during the muscle activity.
Keywords: 
gas exchange; skilled cyclists; anaerobic exertion; low-intensity laser radiation.