 However, ISU adopted the short track speed skating branch, with mass start races on shorter tracks, in 1967, arranged international competitions from 1976, and brought them back to the Olympics in 1992.In the 1930s, women began to be accepted in ISU speed skating competitions.Although women's races had been held in North America for some time and competed at the 1932 Winter Olympics in a demonstration event, the ISU did not organise official competitions until 1936.