 In 2008 Summer Olympics she won the gold medal.She also won gold medals at the world championships of 2003, 2005, 2007, 2009 and 2011 as well as a bronze medal in 2001.On May 10, 2010 she was banned for two years by the International Judo Federation because of Clenbuterol doping and was required to give back her gold medal from the World Championships of 2009.