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我们选择1992年冬季奥运会越野滑雪女子30公里自由技术的比赛,测定成绩好与差的运动员之间的运动动作的差异。采用三维摄影技术拍摄运动图形;比赛在平地上进行。选择8名比赛成绩列在上半部的运动员为第1组,8名成绩列在下半部的运动员为第2组。第1组的平均周期速度大大高于(P<0.05)第2组的速度。并且发现在滑行速度与周期速度(r=.89)之间,以及周期长度与周期速率(r=-.82)之间有着很显著的相关关系(P<.03),以及弱侧肘外伸较小(P<.05)。第1组在插杖时弱侧肘弯屈很大(P<.03),并且在撑杖时躯体弯屈大(P<.05)。第1组与第2组之间的平均周期速度的差异,可能是由于较小阻力及较大的动力所致。
We selected the 1992 Winter olympics cross-country skiing women’s freestyle 30 km race, determination of good and bad athletes between the differences in movement. The use of three-dimensional photography shooting motion graphics; game on the ground. Eight athletes with the top eight results in the first round and the second eight in the bottom half were selected as the second set. The average period velocity in Group 1 was significantly higher than that in Group 2 (P <0.05). It was also found that there was a significant correlation (P <.03) between the gliding speed and the periodic velocity (r = .89) and between the period length and the periodic velocity (r = -. 82) Stretch is smaller (P <.05). Group 1 flexed weakly elbow flexibly at insertion (P <.03), and the body flexed extensively during brace (P <.05). The difference in average period velocity between Group 1 and Group 2 may be due to less resistance and greater power.