成都体育学院学报 ›› 2015, Vol. 41 ›› Issue (3): 82-86.doi: 10.15942/j.jcsu.2015.03.16
• SPORTS TRAINING AND COMPETITION • Previous Articles Next Articles
HAO Fengxia1, LIU Zheng1, LIU Pingqing1, SHI Donglin2
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Abstract: Objective: This study aims at describing the swimmers’ features and changes of a short-cycle speed fluctuation in the 200m freestyle (Vfluc),and analyzing their correlation with the swimmers’ performance. Methods: 11 male swimmers in active service from Hubei are selected as the research subjects. 4 underwater and 2 overwater video cameras are used to synchronously record their swimming performance. The 200m freestyle swimming is divided into 4 segments (SC1, SC2, SC3, SC4) and oval region method is adopted to calculate human body data. Results: the findings indicate an overall decline in the Vmean and a positive correlation between the swimmers’ Vmax/Vmin and their performance with the correlation of segment 1 much higher than the other three sections. Vmax and Vmin demonstrate significant correlation, but no correlation to the swimming performance. Conclusion: there is no correlation between the velocity fluctuation characteristics in all directions and performance with no significant changes during the whole process.
Key words: kinematics, freestyle, centroid, velocity features
CLC Number:
G861.1
HAO Fengxia, LIU Zheng, LIU Pingqing, SHI Donglin. 3-D Kinematic Analysis of the Speed Characteristics Freestyle Swimming Within a Shjort Cycle[J]. 成都体育学院学报, 2015, 41(3): 82-86.
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URL: http://cdtyxb.cdsu.edu.cn/EN/10.15942/j.jcsu.2015.03.16
http://cdtyxb.cdsu.edu.cn/EN/Y2015/V41/I3/82