Sarro Karine J, Misuta Milton S, Burkett Brendan, Malone Laurie A, Barros Ricardo M L
College of Physical Education, Campinas State University, Campinas, Brazil.
J Sports Sci. 2010;28(2):193-200. doi: 10.1080/02640410903428541.
The kinematics of male wheelchair rugby players (n = 8) during the final match of the 2008 Demolition Derby were assessed using two cameras (10 Hz) and a tracking method based on image-processing techniques. The players' on-court trajectory, total and accumulated distances covered, distances covered during working and stopped game clock, and average velocity were calculated. The players covered 2294.7 +/- 391.5 m in the first half and 2245.4 +/- 431.5 m in the second half. The average velocity was 14.5% greater in the first (1.22 +/- 0.21 m . s(-1)) than in the second half (1.05 +/- 0.20 m . s(-1)). The reduction in velocity was most marked in players with less functional capacity. The working game clock represented 48% of total game time (32 of 66.8 minutes) and the distance covered by all players during working game clock was 60% of the overall distance covered during the whole game (36,323 m). The results provide new information regarding the dynamics of a wheelchair rugby match and should aid coaches in planning effective training and coaching strategies.
在2008年撞车大赛的决赛中，使用两台摄像机（10赫兹）和基于图像处理技术的跟踪方法，对8名男性轮椅橄榄球运动员的运动学进行了评估。计算了运动员在球场上的轨迹、总距离和累积距离、比赛计时运行和停止期间所覆盖的距离以及平均速度。运动员在上半场覆盖了2294.7±391.5米，下半场覆盖了2245.4±431.5米。上半场的平均速度（1.22±0.21米·秒-1）比下半场（1.05±0.20米·秒-1）快14.5%。功能能力较差的运动员速度下降最为明显。比赛计时运行时间占总比赛时间的48%（66.8分钟中的32分钟），所有运动员在比赛计时运行期间所覆盖的距离占整场比赛总距离（36323米）的60%。这些结果提供了有关轮椅橄榄球比赛动态的新信息，应有助于教练制定有效的训练和指导策略。
