Commandeur missed the 1976 Olympics due to injuries that kept returning in 1977–1978, In early 1979 she focused on pentathlon (and later heptathlon) aiming for the 1980 Olympics. Next year she finished second in the national championships and did not qualify for the Games. Meanwhile, the 400 m hurdles, in which she was twice national champion, was not yet included to the Olympic program. She competed in this event at the 1980 World Championships in Athletics and later at the 1984 Olympics, but failed to reach the finals.