US Alexandra Raisman competes in the Floor Exercise final at the London 2012 Olympic Games Artistic Gymnastics competition, on London, Aug. 7.

Alexandra Raisman of the United States competes in the Artistic Gymnastics Women's Floor Exercise final on Day 11 of the London 2012 Olympic Games at North Greenwich Arena on Aug. 7, 2012 in London, England.

Alexandra Raisman of the U.S. competes in the women's gymnastics floor exercise final in the North Greenwich Arena during the London 2012 Olympic Games on Aug. 7.

Alexandra Raisman of the United States competes in the Artistic Gymnastics Women's Floor Exercise final on Day 11 of the London 2012 Olympic Games at North Greenwich Arena on Aug. 7, in London, England.

Alexandra Raisman of the United States competes in the Artistic Gymnastics Women's Floor Exercise final on Day 11 of the London 2012 Olympic Games at North Greenwich Arena on Aug. 7.

Alexandra Raisman of the United States hugs coach Mihai Brestyan after winning the gold medal for the Artistic Gymnastics Women's Floor Exercise final on Day 11 of the London 2012 Olympic Games at North Greenwich Arena on Aug. 7, in London, England.

Alexandra Raisman of the US celebrates with her gold medal in the women's floor exercise at the London 2012 Olympic Games Artistic Gymnastics, on Aug. 7.

U.S. gymnast Gabrielle Douglas performs on the balance beam during the artistic gymnastics women's individual all-around competition at the London 2012 Summer Olympics, Aug. 2.

Gabrielle Douglas is hugged by team coordinator Martha Karolyi after winning a gold medal in the women's individual all-around gymnastics final during the London 2012 Olympic Games, Aug. 2, 2012.

Mc Kayla Maroney, Jordyn Wieber, Gabrielle Douglas, Alexandra Raisman and Kyla Ross of the United States celebrate on the podium after winning the gold medal in the Artistic Gymnastics Women's Team final on Day 4 of the London 2012 Olympic Games at North Greenwich Arena on July 31, in London, England.

U.S. gymnast Jordyn Wieber, second left, lifts up the hand of teammate Alexandra Raisman, as they celebrate along with McKayla Maroney and Kyla Ross after being declared winners of the gold medal during the Artistic Gymnastic women's team final at the 2012 Summer Olympics, on July 31, in London.

Gabrielle Douglas of the United States of America competes on the uneven bars in the Artistic Gymnastics Women's Team final on Day 4 of the London 2012 Olympic Games at North Greenwich Arena on July 31, in London, England.

USA's Jordyn Wieber competes on the uneven bars during the women's Team Final at the London 2012 Olympic Games Gymnastics competition on July 31.

In this multiple exposure photo, U.S. gymnast Alexandra Raisman performs on the balance beam during the Artistic Gymnastics women's team final at the 2012 Summer Olympics on July 31 in London.

A young gymnastics student does a handstand during a training session at a gymnastics school in Shanghai March 23. More than 30 children, aged between 5 and 9, were chosen from local kindergartens or elementary schools to attend training courses five times a week.

A coach scolds a young gymnastics student during a training session at a gymnastics school in Shanghai, on March 23.

Young gymnastics students balance on the beam during a training session at a gymnastics school in Shanghai, on March 23.

Mikhail Koudinov of New Zealand competes on the vault during day four of the Gymnastics World Championships on October 10.

Fabian Gonzalez of Spain falls from the pommel horse in the men's team event of the qualification round at the World Gymnastics Championships in Tokyo on October 10.