Career
She has tested positive for doping. She trained with Aleksandr Seleznyov. In 2012, her samples from the 2004 Olympics were retested, and she tested positive for anabolic steroids.
Subsequently she was under investigation by the International Amateur Athletics Federation.
In 2013, samples from the 2005 World Championships were retested and Kuzenkova was found to have been doping there as well. In March 2013, she was banned from competitions for two years.