| （1.安徽省体科所 运动医学室，安徽 合肥 230001；2.郑州大学 体育学院，河南 郑州 410100；3.安徽省田径游泳运动管理中心，安徽 合肥 230001） 摘 要：运用高速摄像与影片解析等方法，对2014年国际田径联合会竞走世界杯赛男子20 km中、外参赛优秀运动员的技术动作进行了分析诊断，研究发现：1)中国男子运动员重心移动速度偏慢，表现在步频偏小、大腿夹角偏小，说明步幅还有待提高。2)中国男子运动员头顶点上、下起伏较大，腾空时间较长，被判罚犯规的可能性较大。3)中国男子竞走运动员踝关节蹬伸幅度偏小，上、下肢摆动角度左右不平衡，上、下肢摆动速度偏慢。建议：中国男子竞走运动员在具有充分步幅的前提下，要适当提高步频，增大踝关节的蹬伸力量，加大上、下肢的摆动速度，形成左右平衡、摆动充分的合理技术动作。 |
ZHOU Hao-xiang1，WANG Guo-wei2，WEI Liang-zhong1，QIANG Wu3，GUO Zi-yuan1，ZHANG Shu-lin3
| （1.Sports Medicine Section，Anhui Sports Science Research Institute，Hefei 230001，China；2.School of Physical Education，Zhengzhou University，Zhengzhou 410100，China；3.Anhui Track and Fields Swimming Sports Management Center，Hefei 230001，China) Abstract: By applying methods such as high-speed video recording and analyzing, the authors analyzed and diagnosed technical movements of domestic and foreign men’s 20 km race walkers who participated in IAAF Race Walking World Cup 2014, and revealed the following findings: 1)the Chinese male athletes’ center of gravity moving speed was on the slow side, which was embodied in lower pace frequency, and smaller thigh included angle, meaning that pace frequency still needs to be improved; 2)the Chinese male athletes’ head vertex fluctuation was relatively big, their hang time was kind of long, thus the possibility of being judged as foul was high; 3)the Chinese male race walkers’ ankle joint stretching am-plitude was on the small side, their upper and lower limb swinging angles were not left and right balanced, their upper and lower limb swinging speeds were on the slow side. The author suggested that Chinese male race walkers appropriately in-crease pace frequency, ankle joint stretching power, as well as upper and lower limb swinging speeds, under the condition of having an adequate stride, and form left and right balanced, swinging sufficient rational technical movements. |
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