She has been a popular sports personality in Brazil since her first major appearance at the 2007 Pan American Games in Rio de Janeiro. In December 2007, she was named Brazil's Sportswoman of the Year, an award given in previous years to gymnasts Laís Souza and Daiane dos Santos.
At the 2007 Pan American Games, she placed fourth in the all-around after falling from the uneven bars and balance beam and going out of bounds on floor exercise. The following day, she competed in the vault finals, where she placed first with a score of 14.912, making her the only non-American woman to win a gold medal in gymnastics at the Games. She also won a bronze medal in the floor final, behind Americans Rebecca Bross and Shawn Johnson, and a silver with the Brazilian team.
At the 2007 World Championships, Barbosa tied with Vanessa Ferrari of Italy for the bronze medal in the women's all-around, scoring 15.9 on vault, 14.95 on bars, 15.7 on beam, and 14.0 on floor. She placed fifth in the vault finals, seventh in the beam finals, and fifth with the team, behind the United States, China, Romania, and Italy.
In October 2007, Barbosa took part in the World Cup event in Stuttgart, Germany, and won two silver medals, one on the vault and one on the floor. At the end of the year, she performed a Cheng vault—one of the most difficult vaults in the world, named after the Chinese Olympian Cheng Fei—in a Brazilian competition. Because she could also perform an Amanar, she became a contender for the Olympic vault title.
Also in 2007, Barbosa won the Brazilian senior national all-around title (defeating 2006 champion Daniele Hypólito), along with the national titles on vault and balance beam.
In December 2007 Barbosa was elected Brazil's Sportswoman of the year, an award also given in previous years to gymnasts Laís Souza and Daiane dos Santos.