【摘要】 目的:通过对部分女子1 000m速滑运动员的关键或近期的世界级比赛进行运动学数据获取和几何模型建立,以期更准确地评价比赛中运动员的速度特征。方法:选取鲍维(Bowe)等十位世界优秀女子1 000m速滑运动员的关键或近期比赛视频录像,使用Dart Fish的视频分析(精度0.1s)和同步计时软件(精度0.01s)获得滑行各阶段的运动学数据,构建几何模型,编辑数据并进行差异性和相关性分析。结果呈现为描述速度的几何曲线和各分段间速度与成绩的相关性。结论:速度拟合曲线能够很好地描述世界优秀女子速度滑冰1 000m运动员比赛中的速度情况并评估运动状态。世界优秀女子速度滑冰1 000m运动员在比赛中第2、12、13、18、19、20段的平均速度水平、相对平稳滑行阶段的最小速度和最大速度是影响比赛成绩的关键因素,且最小速度更为重要。更多还原

【Abstract】 Objective: The kinematics data and geometric model were acquired by video analysis and synchronous timing software for the key or recent world-class competitions of 1 000 m female elite speed skaters in the world, so as to evaluate the speed characteristics of the athletes more accurately. Methods: Dart Fish video analysis(accuracy: 0.1 s) and synchronization timing software(accuracy: 0.01 s) were used to obtain kinematics data of each stage of sliding of key or recent competition video of ten 1 000 m elite female speed skating athletes in the world, including Brittany Bowe. These data are used to build geometric models, edit the data, and perform difference and correlation analysis. The result is presented as a geometric curve describing the speed and the correlation between the speed and the performance of each segment. Conclusion :The speed fitting curve can describe the speed situation and evaluate the sports status of the world elite 1 000 m female speed skating athletes.The average speed level of 1 000 m female speed skaters in the 2 nd, 12 th, 13 th, 18 th, 19 th and 20 th stages, the minimum speed and maximum speed in the relatively smooth sliding stage are a key factor in the performance, and the minimum speed is more important.更多还原