Vio is a champion
wheelchair fencer. She uses a special
prosthetics to hold her
foil, fencing from the shoulder. Under the coaching of Federica Berton and Alice Esposito, she took part in her first wheelchair fencing competition in 2010. The
2012 Summer Paralympics were too early in her career for her to take part, but she was chosen as a torchbearer for the opening ceremony after an online campaign where more than 1,000 people emailed the
International Paralympic Committee to support her candidacy. In 2013, she won her first World Cup in Montreal after she defeated Olympic silver medalist
Gyöngyi Dani. For this performance she was named paralympic athlete of the month by the International Paralympic Committee. with
Ursula von der Leyen in September 2021 In the early 2013–14 season, she paused to focus on her studies, but she returned in June and won both the individual and team competition at the European Championships. At the end of the year, the Italian Paralympics Committee awarded her the distinction of "Italian Paralympic Athlete of the Year", a title shared with
Oxana Corso. In 2015, she became world champion after she defeated Dani 15–4 in the final. She was named an ambassador for the Milan
Expo 2015 and she published her autobiography, . In the 2015–16 season, she received the
Edoardo Mangiarotti award from the
Italian Olympic Committee. She won her second European title in Casale Monferrato, prevailing over Russian
Irina Mishurova. In July she lost in the final of the Warsaw World Cup to Russian Viktoria Boykova, which ended her streak of 11 consecutive victories in World Cup events. She however qualified to the
2016 Summer Paralympics as the top-ranked fencer in her category. In Rio she came out of the pool stage undefeated, winning her five pool bouts on 5–0. In the quarterfinals, she defeated Poland's
Marta Makowska on 15–6, then overcame defending Paralympic champion, China's
Fang Yao, on 15–1. On 14 September, in the final, she met China's
Jingjing Zhou. After she took an early lead, the bout was interrupted when the tip of her opponent's foil went accidentally into her mask. After ice was applied, she went on to win 15–7, earning Paralympic gold. In 2020, she starred in the documentary film
Rising Phoenix. ==Advocacy==