Career
In the Nazi period in Germany, Sievert was seen as a symbolic hope of the German "master race" in the 1936 Summer Olympics. Sievert was recommended to leave the sport after his injury. In World World War II, Sievert became an officer of the German armed forces.
In Hungary in 1944, he lost his left foot to a land mine.
After the war, Sievert became the chairman of Hamburg"s track-and-field event federation and a sport advisor to the German government. He became ill in 1957 and quit his work, moving into the home of his father in Eutin.