Weightlifting is graded according to the weight of athletes, which started from the 7th Olympic Games in 1920. At that time, there were five heavyweights, namely, sub-lightweight (60 kg), lightweight (67.5 kg), middleweight (75 kg), lightweight (82.5 kg) and heavyweight (above 82.5 kg). 1947 World Weightlifting Championship adopted the proposal of Egypt, a powerful weightlifting country at that time, and added another level-the lightest weight level (below 56kg). 195 1 was changed to level 7, which raised the weight standard of the original heavyweight to over 90kg and increased the sub-heavyweight (from 82.5kg to 90kg). Pass through seven levels from now on 1972. Since the 20th Olympic Games in 1972, the weightlifting competition has increased to nine levels, with the second lightest heavyweight (below 52kg) and extra heavyweight (above110kg) added, and the heavyweight was changed to110kg.. 1976 During the 2nd1Olympic Games, it was increased to 10, with an increase of 100 kg. 1996 Olympic Games, although the level is still 10, but the weight has changed, specifically, 54 kg, 59 kg, 64 kg, 70 kg, 76 kg, 83 kg, 9 1 kg, 99 kg, 108 kg and. 1998, in line with the trend of "Olympic slimming", the International Weightlifting Federation took the initiative to reduce the men's 10 level to eight levels: 56 kg, 62 kg, 69 kg, 77 kg, 85 kg, 94 kg, 105 kg and 105 kg or more. At the same time, women are also adjusted to seven levels: 48 kg, 53 kg, 58 kg, 63 kg, 69 kg, 75 kg and above. The evolution of weightlifting methods weightlifting competitions were not originally classified by lifting methods, but only by one hand and two hands. At the 1920 Olympic Games, the events were classified into lifts and single-handed and mixed doubles, that is, snatch with one hand, clean and jerk with one hand and clean and jerk with two hands. 1924 The 8th Olympic Games added two-handed push and two-handed snatch. Due to the increase in the number of events and trials, the competition time is too long. 1928 In the 9th Olympic Games, the snatch and one-handed clean and jerk were cancelled, and one-handed weightlifting officially withdrew from the international stage. 1972, the international weightlifting Federation cancelled the election competition again, only retaining the snatch and clean and jerk, and now it also abides by this rule. The Origin of Women's Weightlifting With the development of men's weightlifting, the United States began to hold women's weightlifting competitions in the 1940s. 1984 entrusted by the international weightlifting Federation, the United States organized the first women's weightlifting exchange competition, and 12 countries participated. In the same year, the International Weightlifting Federation approved and adopted the new international weightlifting rules at the Los Angeles Congress, officially included women's weightlifting in the competition, and formulated nine heavyweight standards for women's weightlifting competition. 1 987 65438+1October 3 1 to165438+1October1,the first world women's weightlifting championship was held in Daytona Beach, USA. 99 athletes from 22 countries and regions participated in the competition. The result of the champion was declared as the world record of women's weightlifting. Women's weightlifting was listed as an official event in the 2000 Sydney Olympic Games.