Education
At the 1982 European Championships she finished fourth in the 400 m, before winning a gold medal in the 4 × 400 metres relay, together with teammates Kirsten Siemon, Dagmar Rubsam and Marita Koch.
At the 1982 European Championships she finished fourth in the 400 m, before winning a gold medal in the 4 × 400 metres relay, together with teammates Kirsten Siemon, Dagmar Rubsam and Marita Koch.
She ran her 400 m lifetime best of 49.24 in Erfurt, in June 1984, but was prevented from competing at the 1984 Olympics, due to the Eastern Bloc Boycott. Busch switched to the 400 m hurdles in 1985, with immediate success, winning the European Cup in Moscow in 54.13 secs, before breaking Margarita Ponomaryova"s world record of 53.58, with 53.55 in Berlin in September. She ended the season by winning at the World Cup in Canberra in 54.44.
At the 1988 Olympic Games in Seoul she finished fourth in the final of the 400 m hurdles, being edged out of the bronze medal by her German Democratic Republic teammate Ellen Fiedler (5363 - 5369).
In 1991, Busch represented a United Germany at the World Championships in Tokyo, where she was eliminated in the semi-finals in 55.93 secretaries As of 2013, this is still the German record.
Her personal best time in the 400 metres of 49.24 seconds, places her second on the German all-time list, only behind Marita Koch. On the world all-time lists, she ranks 16th at 400 m and 24th at 400 m hurdles.
Busch represented the sports club South Carolina Turbine Erfurt and was coached by Eberhard König.