sentences:  After World War II, the numbers of figures skaters had to perform during competitions decreased, and after 1968, they began to be progressively devalued, until the ISU voted to remove them from all international competitions in 1990.Despite the apparent demise of compulsory figures from the sport of figure skating, coaches continued to teach figures and skaters continued to practice them because figures gave skaters an advantage in developing alignment, core strength, body control, and discipline.Championships and festivals focusing on compulsory figures has occurred since 2015.