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| 国家优秀射击运动员平衡稳定性特点及评价指标 | |
| 引用本文： | 张秀丽,王向东,刘学贞.国家优秀射击运动员平衡稳定性特点及评价指标[J].体育学刊,2007,14(2):99-102. |
| 作者姓名： | 张秀丽 王向东 刘学贞 |
| 作者单位： | 1. 华南师范大学,体育科学学院,广东,广州,510631;北京体育大学,研究生院,北京,100084 2. 国家体育科学研究所,北京,100081 3. 北京体育大学,运动生物力学教研室,北京,100084 |
| 摘 要： | 运用footscan balance测试系统对国家高水平手枪、步枪射击运动员进行了平衡稳定性的的测试，通过分析得出以下主要结论：第一，所有射击运动员中男子手枪运动员身体姿态的平衡稳定性及调节能力最差：第二，射击训练只能使睁眼状态下身体晃动面积和前后晃动幅度减小；第三，一般平衡稳定性指标（身体重心前后、左右晃动幅度、轨迹长度、晃动面积）不能准确地反映高水平射击运动员平衡稳定性的特点．而派生指标——单位面积的轨迹长度（轨迹总长度与晃动面积的比值），既显示平衡稳定性，又能体现姿态调节能力，在晃动面积一定的情况下，其值越大，表明调节能力越强，晃动的频率越快，身体平衡稳定性越好．在实射时对枪支的影响越小，可作为射击运动员的评价和选材指标。 |
| 关 键 词： | 射击运动员 平衡稳定性 足底压力中心 姿态调节 |
| 文章编号： | 1006-7116（2007）02-0099-04 |
| 修稿时间： | 2006-11-27 |
Characteristics of and indexes for evaluating the balancing stability of excellent shooting athletes in China |
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| ZHANG Xiu-li,WANG Xiang-dong,LIU Xue-zhen.Characteristics of and indexes for evaluating the balancing stability of excellent shooting athletes in China[J].Journal of Physical Education,2007,14(2):99-102. | |
| Authors: | ZHANG Xiu-li WANG Xiang-dong LIU Xue-zhen |
| Institution: | 1 .College of Physical Education, South China Normal University, Guangzhou 510631, China; 2.Graduate School, Beijing Sport University, Beijing 100084, China; 3.China Institute of Sport Science, Beijing 100081, China; 4. Department of Sport Biomechanics, Beijing Sport University, Beijing 100084, China |
| Abstract: | The authors used the foot-scan balance test system to test the balancing stability of high performance pis-tol and riffle shooting athletes in China,and drew the following main conclusions by analyzing the results:1) among all the shooting athletes,male pistol shooting athletes have the poorest body posture balancing stability and adjust-ing ability;2) shooting training can only reduce the body shaking area as well as back and forth shaking amplitude in the eye-opening condition;3) common balancing stability indexes (back and forth shaking amplitude,left and right shaking amplitude,track length and shaking area of body center of gravity) cannot accurately reflect the char-acteristics of balancing stability of high performance shooting athletes,while the track length per unit area (the ratio of total track length to shaking area),a derivative index,can not only show the balancing stability,but also reflect the posture adjusting ability. When the shaking area is fixed,larger track length per unit area indicates stronger ad-justing ability,faster shaking frequency,better body balancing stability,and lesser effect on the guns at actual shooting. This index can be used as an index for evaluating and selecting shooting athletes. |
| Keywords: | shooting athlete balancing stability sole pressure center posture adjustment |
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