背向滑步推铅球技术运动时空的灰色关联分①析

Gray Correlation Analysis of the Space-time of Technical Movements in Backward Sliding-step Shotput

采用技术动作影像分析法和数理统计法,对健将级男子背向滑步推铅球技术动作各时相人体重心速度变化指标、身体右侧各环节的峰值速度指标、过渡阶段铅球速度变化指标与专项成绩进行灰色关联分析,找出各指标与专项成绩的灰色关联高低及对专项成绩的贡献率,为我国男子背向滑步推铅球运动技术训练提供理论依据.

Using technical movements imaging analysis and mathematical statistics method, this essay deals with gray correlation analysis of the relationship between some indexes and specific performance in Master Sportsmen＇s Backward Sliding-step Shotput, the indexes being the body gravity speed change indexes at different phases of the technical movements; the peak speed indexes of various links on the right side of the body and the shot speed change indexes at transitional stage. The study tries to find out the high low of gray correlation between various indexes and specific performance and its contribution to the performance. Results of this study will provide a theoretical basis for the skill training of China＇s men＇s Backward Sliding-step Shotput.