 Complete the following phrase:  With these changes, the emphasis in competitive figure skating shifted to increased athleticism. Landing triple jumps during the short program and the free skate became more important. By the 1980s, some skaters began practising quadruple jumps. Jozef Sabovcik of Czechoslovakia landed a quad toe loop at the 1986 European Championships which was recognized at the event but then ruled invalid three weeks later due to a touchdown with his free foot. At the 