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| 中国女子垒球优秀投手投球动作的生物力学研究 | |
| 引用本文： | 罗炯,陈建军,龙小安.中国女子垒球优秀投手投球动作的生物力学研究[J].成都体育学院学报,2005,31(2):101-104. |
| 作者姓名： | 罗炯 陈建军 龙小安 |
| 作者单位： | 1. 广东韶关学院体育系,广东,韶关,512005 2. 西华师范大学体育系,四川,南充,637002 3. 成都体育学院中心实验室,四川,成都,610041 |
| 摘 要： | 对中国目前国内三位女子优秀垒球投手绕环投球动作进行三维定点拍摄和录像解析.实验结果表明中国优秀投手对整个投球动作的总体掌握较熟悉,动作连贯性较好.其中张艳清伸踏时间、下摆加速时间、伸踏距、肩髋角、肘伸速度、肩旋内速度、球出手速度等运动学指标已达国际一流水平.在出手瞬间人体重心高度、球心高度方面,三位投手没有显著性差异,两指标值说明我国优秀运动员对垒球出手环节技术的掌握已达到国际先进水平. |
| 关 键 词： | 女子垒球 环绕式投球 运动学指标 生物力学研究 |
| 文章编号： | 1001-9154(2005)02-0101-04 |
| 修稿时间： | 2004年10月8日 |
Biomechanics Research on Throwing of China Excellent Female Softball Pitcher |
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| LUO Jiong,et al.Biomechanics Research on Throwing of China Excellent Female Softball Pitcher[J].Journal of Chengdu Physical Education Institute,2005,31(2):101-104. | |
| Authors: | LUO Jiong |
| Abstract: | Circling throwing motions of three excellent female pitchers of softball in China have been taken photograph with three-dimensional kinematical analysis. The results indicated that excellent pitchers in China have mastered basically the whole course of throwing ball motion and possessed better continuity of motion. Among three athletes, there were many kinematics indexes of ZHANG Yanqing, such as extending-tread time, speedup time of lapping, the distance of extending-tread, shoulder-coxa angle, extending-elbow velocity, shoulder inner-revolving speed, ball-velocity of leaving hand and so on have entered the first-level in the world. There was not notable difference among three pitchers about the two indexes of the height of center of gravity and softball at the moment of ball leaving hand, which disclosed that the excellent female pitchers in China have held the tache-technique of ball leaving hand and achieved the world level. |
| Keywords: | female softball circling throwing ball kinematical index biomechanics research |
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