What drug left unchallenged Usain Bolt in the 100 meters?

American sprinter Tyson Gay who recently gave positive doping tests, had taken "natural external steroids," so it could be removed from competition for two years, according to the British broadcaster BBC. It was the athlete, specialist in testing 100 meters, who announced last month that the U.S. Anti-Doping Agency (Used, for its acronym in English) was found positive in doping tests conducted in May, before the World Athletics Championships Moscow this year. Although he had not yet specified what the substance for which the athlete had tested positive, the BBC reported today an excerpt from the letter that he sent to the athlete Used, in confirming that Gay had taken steroids. "Through the carbon isotope test found that the sample offered anomalous analytical results, which reflected a natural external steroids making ", says the letter that the institution sent the athlete on 23 July. The letter also claims that failing a doping test for this type of "anabolic" -chemicals used to increase metabolism, is a violation of the World Anti-Doping Code (Wada, for its acronym in English). Under the provisions of this code, the maximum penalty that could be applied to a convicted athlete taking steroids is the prohibition to compete for two years. After being informed of the results in July, the 30-year athlete voluntarily retired team United States selected for the World Championships in Athletics held in Moscow between 10 and 18 August. Since then, the Used still investigating his case before subjecting the athlete to a disciplinary hearing in the coming weeks. Meanwhile, Gay guilt attributed to a member of his team , saying "never" taken "consciously any drugs to improve performance." "There is no question of sabotage. What happened is that I put my trust in someone and failed me , "said the sprinter, who was world champion in 100 and 200 meters in Osaka 2007 , the year he was elected best athlete worldwide. "I hope to run again soon, but accept whatever punishment they deserve, "he added when it was discovered athlete doping. In response to the confessions of Gay, a spokesman for the Used said since the institution appreciated "their voluntary withdrawal from the U.S. team in recent competitions," he said in a statement to the BBC. This year Tyson Gay had regained full strength after a year of injury and surgery on a rib. Its brands -9.75 season at 100 and 19.74 in 200 - had raised hopes in the U.S. team to beat Jamaican Usain Bolt at the World Championships in Moscow, which were played from 10 to 18 August.

Moscow World l Bolt goes in search of the second gold in Moscow

Usain Bolt after winning the 100 meters, began his journey in search of the seventh gold medal in World Cup history. This Friday played the first round and then go for the semifinals. Saturday will be the day of the final. In the first round,  had a time of 20.66 and took the win . Also on Friday, between 15:30 GMT and 16:05 GMT , will compete in the semis to reach the top candidate Saturday to take the gold. The weekend will be the turn the 4x100 meter relay , which will be run on Sunday , the day ending championship. In case of winning the two tests, the Jamaican pass in front of the historic medal men's competition with eight golds and two silvers. For now, the legendary sprinter and long jumper Carl Lewis has the honor of leading the historical table , but Bolt is ready to dethrone him in Moscow. The 200 meters is his favorite . It released a world junior title before age 16 years, before being silver medal at the 2007 Osaka World, at age 20. And this year he won both races he played in Oslo and Paris. In the relay, the United States will try to avoid another podium 100% Jamaican with inexperienced Isiah Young, London semifinalist in 2012, Curtis Mitchell, Ameer Webb and Wallace Spearmon, who has, with 19.65, the seventh fastest of all time , although achieved in 2006. For its part, the Argentinian Germán Lauro participate in the final of the shot putThursday after being classified among the top 12 specialty.

For the fourth time, Usain Bolt is the "Athlete of the Year"

The Olympic champion in 100, 200 and 4x100 meters , once again won the award of "Athlete of the Year ". This was announced by the International Association of Athletics Federations (IAAF).  Bolt , who won the final vote to ochocentista Kenyan David Rudisha and hurdlerAmerican Aries Merritt, had already achieved the distinction in 2008 , 2009 and 2011. After his outstanding performance in London 2012,  Bolt , who holds the world record for the 100 and 200 meters , will focus on recovering, in 2013 , his world title in Moscow and thus challenge their own limits. "We are trying to see how to go faster still. That is my main goal because I get older and want to go fast enough to return to World Cup triumph in "acknowledged sprinter.  In the  female category , the award went to the American Allyson Felix, like theJamaican, scored three Olympic titles in London.