Born in a family with 5 children, she took up rhythmic gymnastics at the Club
Gimnàstic de Tarragona, after trying other sports like athletics and
tennis. In 1985 she competed in her first Spanish Championships in
Cádiz. At 13, in 1988, she was called up by
Emilia Boneva to be part of the Spanish national team as part of the group. During that time, she would train about 8 hours a day at the Moscardó Gymnasium in
Madrid under the direction of Boneva herself along with that of Ana Roncero, who since 1982 had been national group coach and head coach. She would also live with all the members of the team in a house in
La Moraleja. At the beginning of 1989, she won three silver medals in the DTB-Pokal Karlsruhe tournament. Shortly after, she and the other members of the group (
Beatriz Barral,
Lorea Elso,
Arancha Marty,
Mari Carmen Moreno and
Vanesa Muñiz, with
Marta Aberturas and
Nuria Arias as the substitutes) won three bronze medals at the
World Championships in
Sarajevo. They reached the podium both in the all-around and in the two finals, 12 clubs and 3 ropes and 3 ribbons. In 1990, the
European Championships in
Gotheburg took place, where she won a bronze medal in the all-around, as well as a silver in the 12 clubs final and another bronze in the 3 ropes and 3 ribbons final. At the
World Cup Final, held that year in
Brussels, the group (made up of Fuster,
Beatriz Barral,
Lorea Elso,
Montserrat Martín,
Arancha Marty and
Vanesa Muñiz, with
Marta Aberturas and
Gemma Royo as the substitutes) won all three bronze medals. At the Wacoal Cup tournament in
Tokyo, held in November, they won overall silver. In 1991, the two exercises for groups were 6 ribbons for the single-apparatus exercise and 3 balls and 3 ropes for the mixed-apparatus one. Their ribbon exercise used "
Tango Jalousie", composed by
Jacob Gade, for the music, while their mixed-apparatus one used the song "Campanas" by
Víctor Bombi. To choreograph the dance steps of the 6 ribbons exercise, they had the help of Javier "Poty" Castillo, then a dancer with the
National Ballet, although the team's usual choreographer was the Bulgarian Georgi Neykov. Before the World Championships, they won gold at the Karlsruhe tournament (ahead of the USSR and Bulgaria) and three bronzes at the Gymnastic Masters in
Stuttgart. On 12 October 1991, the Spanish team (consisting of Fuster,
Débora Alonso,
Isabel Gómez Pérez,
Lorea Elso,
Montserrat Martín and
Gemma Royo, with
Marta Aberturas and
Cristina Chapuli as the substitutes) won gold in the all-around at the
World Championships in
Athens. This medal was described by the media as historic, since it was the first time that Spain had won the World Championship in rhythmic gymnastics. The next day, they would also win silver in both of the two apparatus finals. After this achievement, at the end of 1991 they would tour in
Switzerland. In 1992 they won silver in a tournament in Karlsruhe, and later they were invited to give an exhibition at one in
Corbeil-Essonnes. In June, with new exercises, they participated in the
European Championships in
Stuttgart, where they shared the gold medal in the all-around with the Russian team, in addition to winning another gold in the 3 balls and 3 ropes final and bronze in 6 ribbons. Teresa did not compete in the
1992 Olympic Games because rhythmic gymnastics was an individual-only sport at the Olympics at that time, although she participated with the rest of her teammates in the opening ceremony, leading the parade of participating nations. Shortly after, they won gold at both the Asvo Cup in Austria and the Alfred Vogel Cup in the Netherlands, where they also won silver in 6 ribbons and gold in 3 balls and 3 ropes. Herself and Gómez were injured before the
World Championships in
Brussels, which took place in November 1992. They were kept on the team as substitutes, but in the competing lineup were replaced by
Alicia Martín,
Cristina Martínez and
Bárbara Plaza. In this competition, the team won silver in the all-around, with their score just one tenth of a point away from allowing them to retain the world title they had won the previous year. In addition, on November 22 they won bronze in the 6 ribbons final and were 8th with 3 balls and 3 ropes. After this, Teresa would retire from competition, as would the rest of the group that had been world champion in Athens the previous year. After her retirement she studied at INEF in Barcelona. She also started practicing athletics and aerobic gymnastics for a short time, then deciding to try rugby. She played for four years in the INEF Barcelona's team, making it to the female national team in the 1998 World Cup in Amsterdam, where Spain finished 7th. After that she took a master in Business management. She was president of the Rhythmic Gymnastics Technical Committee of the Catalan Gymnastics Federation (2000 – 2003), and later professor of Fundamentals of Sports I. Rhythmic Gymnastics and Artistic Gymnastics at the
Ramon Llull University of Barcelona between 2002 and 2012, and of Dance and Body Expression in the Degree in Physical Activity and Sports Sciences at the
Rovira i Virgili University in
Amposta from 2012 to 2015. On December 16 2017, Fuster met with other former gymnasts from the national team to pay tribute to former national team coach Ana Roncero. After having participated in writing the technical proposal for the candidacy, he was responsible for Sports and Volunteers of the Organizing Committee of the Tarragona
2018 Mediterranean Games, as well as its Educational Project. On June 22, 2018, she was one of those in charge of carrying the Mediterranean flag at the opening ceremony of the Mediterranean Games, in addition to carrying out different logistics and accreditation control tasks in the Mediterranean town during them. In September she traveled with several former gymnasts from the Spanish team to the
World Championships in
Sofia to meet again with the former national team coach
Emilia Boneva, and a tribute dinner was also organized in her honor. After Boneva's death on 20 September 2019, Lorea and other former national gymnasts gathered to pay tribute to her during the
Euskalgym held on 16 November 2019. The event took place before 8,500 attendees at the
Bilbao Exhibition Center de
Baracaldo and was followed by a dinner in Boneva's honor. As of early 2024 she's a member of the Board of Directors of the Club Gimnàstic de Tarragona and coordinator of the organization's Grana Volunteering program. == Legacy and influence ==