An Experimental Study On The Effect Of Rapid Telescopic Compound Training On The Movement Technique Quality Of 15-16 Year Old Female Cha-cha Dancers

Objective:With the introduction of the WDSF 2.1 scoring standard for sport dance,improving the technical quality of cha-cha dancers’ movements has become a winning factor in current competitive sport dance competitions,and improving the explosive power of the lower limbs is one of the key physical elements for cha-cha dancers to improve the technical quality of their movements.Previous studies have suggested that rapid stretch complex training(PLT)can effectively improve the explosive power of athletes,but few studies have investigated the effectiveness of PLT in improving the explosive power of cha-cha dancers and whether it is more effective in improving the technical quality of their movements compared to traditional strength training(TST).Therefore,this study applied PLT to the daily training of 15-16-year-old female cha-cha dancers to investigate the effects of rapid stretch compound training on the explosive strength and technical quality of the lower limbs of 15-16-year-old female cha-cha dancers,and to provide a scientific training method reference for the daily training of 15-16-year-old female cha-cha dancers.Methods:The study was based on interview method and questionnaire to design the intervention program,and a randomized controlled trial design was used for empirical testing.Thirty-two subjects(age: 15-16 years old)were finally recruited and randomly divided into experimental and control groups.The experimental group underwent 12 weeks of 3 sessions per week of rapid stretch complex training combined with cha-cha dance technique training;the control group underwent 12 weeks of 3 sessions per week of traditional strength training combined with cha-cha dance technique training.Before and after the experiment,the experimental group and the control group were tested for explosive strength of the lower limbs and scored by experts on the technical quality index of cha-cha dance.The data before and after the experiment were statistically analyzed by SPSS software for normality test,Results:(1)After 12 weeks of intervention,both the experimental and control groups significantly improved the subjects’ lower limb explosive strength indexes such as standing long jump,vertical jump touch height and 30 M run(p<0.05);(2)After 12 weeks of intervention,both the experimental and control groups significantly improved the subjects’ technical indicators such as posture,balance,footwork,preparation-movement-reduction,rotation and turning,kinetics and line and extended line(p<0.05);(3)the experimental group was more effective than the control group in improving the indicators of lower limb explosive power such as standing long jump,vertical jump and high touch(p<0.05);(4)the experimental group was more effective than the control group in improving the indicators of posture,preparation-movement-reduction,rotation and rotation and kinetics(p<0.05),but there was no significant difference between the two groups in the indicators of balance,footwork and line and extension line(p>0.05).significant differences(p>0.05)Conclusion:(1)12-week rapid telescopic complex training combined with cha-cha technical training and 12-week traditional strength training combined with cha-cha technical training can significantly improve the lower extremity explosive power of 15-16 year old female cha-cha dancers.(2)12-week rapid telescopic compound training has a more significant effect on the lower extremity explosive power of 15-16 year old female cha-cha dancers compared with 12-week traditional strength training.(3)12-week rapid telescopic complex training combined with cha-cha technical training and 12-week traditional strength training combined with cha-cha technical training can significantly improve the movement technical quality of 15-16 year old female cha-cha dancers.(4)Compared with 12 weeks of traditional strength training combined with cha-cha technical training,12-week rapid telescopic complex training combined with Cha-cha technical training has a better effect in improving the technical quality of movements of 15-16 year old female cha-cha dancers in terms of preparation-motion-recovery,rotation and rotation,and dynamics.