At the 1977 Summer Universiade, held in Sofia, Arantes won a gold medal in the 100-metre backstroke. At the 1979 Summer Universiade, held in Mexico City, Arantes won a silver medal in the 100-metre backstroke. At the 1981 Summer Universiade, held in Bucharest, Arantes won two bronze medals in the 100-metre backstroke and in the 4×100-metre medley relay.