The Analysis Of Female Lifters’ Jerk Movements In 2015 National Weightlifting Championships

Modern weightlifting games give awards to athletes according to their performances in snatch and clean and jerk, be it provincial games, national games, championships, Asian games or the Olympics. As a key sport item in Olympic gold winning, weightlifting has played an important role in China’s efforts inbecoming a sports power. In 2008 Beijing Olympics, China’s weightlifting has obtained eight gold medals and one sliver medal, which astonished the whole world. An athlete’s trial lift performances give a direct reflection of his state in training, competition, skills, and psychology, and it is also the key to winning. Jerk is the last competition item in weightlifting. The performances of jerk influence the final result of an athlete, as a high failure rate in jerk will lead to losing the gold medal.Currently, most domestic researches focus on snatch, power snatch and clean to the chest with numerous guidelines and suggestions for training, while the failures in jerk and analysis of the reasons are rarely seen. By analyzing the reasons for jerk failures in 2015 National Weightlifting Championships, this thesis concluded that among the 21 competitors in Group A, the highest success rate falls on the 53-kg with a total of 88.89%, and the lowest on 63-kg. In terms of women’s trial jerk, failures in jerk outrace clean to the chest. As for failure factors in jerk,20 times are light pre-squatting,16 times are anterior pre-squatting,14 times are barbell drop during the support, nine times are inadequate upward force, six times are front-leaning center of gravity, eight times are back-leaning center of gravity, and four times are instable hands support. Failures caused by knees touching the ground, barbell drop in pre-squatting and back-leaning pre-squatting are respectively one time.