 The 1968 results show a two-metre improvement in the space of the three months leading to her Olympic gold, in a trained athlete whose previous results had been consistent.Gummel was administered Turinabol at a dosage of merely 10 mg daily leading up to the 1968 Olympics where her throws improved from 17 m to 19 m in the three-month cycle.In the years following higher dosages of Turinabol were used with performance increasing in a dose dependent manner, and her throws improved to well over the 20m mark.