MOSCOW, 16 Feb. In the doping test of 15-year-old Russian figure skater Kamila Valieva, three drugs were found that in some cases can be used to improve heart function and be aimed at increasing endurance, quotes the head of the US Anti-Doping Agency (USADA) Travis Tygart, New York newspaper Times. «This is a triple combination of substances, two of which are allowed and one is not. Apparently, they are aimed at increasing endurance, reducing fatigue and increasing oxygen efficiency,» the American functionary said.
