| Race Walking belongs to term with skill and resistant. Along with athlete strength falling, whether they having good skill is important. Datum show that speed character was different from the international match in the latter match. Moreover, the character and number of fouls were different from the international. In these years, the kinematics research about female 20 km Race Walking had less especially in the latter match. Therefore, the technique research about the latter is significant .Up to now, people analyzed Race Walking technique by verge of two divisions, but more kinematics parameters can't be incept .So we should pgt up by verge of the three divisions. This study investigated the excellent eight athletes in this match in Cixi city of Zhejiang province in April 2005 , we screened the latter technique of theirs. We shot two steps by verge of the M-9000 vidicons made in Panasonic company and used aijie picture analysis system to carry through , the datum we caught carry through by verge of spssl 1.0 and excel 2003.Result: These athletes'stride length was 107±4cm, stride frequency was 209±7step, compared with the excellent athletes in the world, stride length is smaller and stride frequency is larger;The time they emptied out was53±l10, 45±10,45±13,43±10, 42±12 MSEL in the five positions, they located the floor level of faint foul;In the straight leg character, their left knee angle was located the right angel,the time they kept 180 angel is located the time they could see, However,in the ultimate sprint phase, the time of 180° they kept was blurry from touchdown to vertical moment;six athletes' high top of the body barycenter appeared in leaving instant, two players' appear buckjump phase, the low-water mark of body barycenter appeared at the vertical moment;Their vertical displacement of body barycenter was7.3± 1.2cm, their vertex displacement was 10.3±2.6cm. The involved two index were different from the international standard;The time our players' sole elevation kept 10° showed the left was88±18, 80±15. 80±15. 78±13> 57±15, the right was 79±11,84±13,79±9, 86±16,46±11 MSEL in the five positions,but the diversification angel was small when they extended;the angel they extended :the left was 24±5° and the right was 26±4°, it was different from the international,the time they extended :the left was123±17 MSEL,the right was 124±21 MSELJt was similar to the international;The trunk angels :the former obliquity was 3±0.02° when they touch down, the angel was l±0.01° in the vertical moment and 5±0.9° in the leaving phase, the left deflection was 7±1.2° and the right was 5±1.4°;The torsional angel of shoulder and coxa :the angel was 67 ±5° when they touch down, the angel was2±0.2° in the vertical and the angel was 73±6° in the leaving time .Conclusion: The buckjump time of our players was located at the floor level of the foul limit, this was the technique players adopt within the rule;In the latter match ,the knee angel of our players was unwind from touchdown to upright phase and the kneel angel was accorded with technique request ,in the sprint phase,the kneel angel was blurry from touchdown to upright phase,if it wasn't noticed,it was impossible to foul;In the latter match, the uprightness displacement of body barycenter and vertex were higher than the international and presented prominent difference, the reason was that they extend badly;The angel was big when it touched down;In the latter match , the pitch obliquity of our players was in gear,but, the right deflection and the left deflection were big, they were mainly because that two feet energized differently;In the latter match ,the torsional angel of shoulder and coxa angel were small, the extending effect was bad , the above were the reason why our players' stride length was short, our players speed was steady and it was the reason why they won. |
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