During the post-war period, American skater Dick Button, who "intentionally tried to bring a greater athleticism to men’s skating", performed the first double Axel in competition in 1948 and the first triple jump, a triple loop, in 1952. Triple jumps, especially triple Salchows, became more common for male skater during the 1950s and early 1960s, and female skaters, especially in North America, included a full repertoire of two-revolution jumps. By the late 1960s and early 1970s, men commonly performed triple Salchows and women regularly performed double Axels in competitions. Men would also include more difficult multi-revolution jumps like triple flips, Lutzes, and loops; women included triple Salchows and toe loops. In the 1980s, men were expected to complete four or five difficult triple jumps, and women had to perform the easier triples such as the loop jump. By the 1990s, after compulsory figures were removed from competitions, multi-revolution jumps became more important in figure skating. According to Kestnbaum, jumps like the triple Lutz became more important during women's skating competitions.