Pedzisa mutsara unotevera: Schumann akawanawo menduru dzendarama ina dzakatevedzana paFIL World Luge Championships (1973<unk>75, 1977). Nhamba yake yemakwikwi yaisazoenzana kusvikira Sylke Otto (akaitawo chiGerman) akaikunda muna 2000,
2001, 2003, uye 2005.