| （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.
Key words: sports biomechanics；20 km race walking；excellent athlete |
