在冰外执行螺旋和旋转任务时对同步滑冰运动员的动力学分析
Johanna Szenczi1, Dorottya Ágoston2, Rita M Kiss2
1Department of Kinesiology, Hungarian University of Sports Science, Budapest, Hungary.
同步滑冰运动员在主导和非主导腿平衡任务之间没有动力学差异. 然而,运动控制策略有所不同,观察到左臂摆动更大,膝盖角度和头部摆动之间的联系.
科学领域:
- 生物力学 生物力学
- 运动科学 运动科学 运动科学
- 发动机控制器的控制器
背景情况:
- 同步滑冰需要复杂的平衡和协调.
- 了解体育特定平衡任务的生物力学对于提高表现和预防伤害至关重要.
- 以前的研究还没有完全阐明初级同步滑冰运动员在冰外平衡任务中使用的动力学策略.
研究的目的:
- 为了研究在静态 (螺旋) 和动态 (旋转) 平衡任务中关节角度和细分摆动的动力学差异,在初级同步滑冰运动员中.
- 为了确定运动控制策略是否不同,当任务执行在主导与非主导腿.
- 探索身体部分运动之间的关联及其对平衡控制的影响.
主要方法:
- 使用基于光学的运动捕捉系统,有39个标记器来记录运动.
- 15名初级同步滑冰运动员每人进行了3次螺旋和旋转任务.
- 分析了关节角度和细分摆动动力学,比较主导和非主导腿部性能.
主要成果:
- 当滑冰运动员在主导腿和非主导腿上执行螺旋任务时,没有发现任何显著的动力学差异.
- 斯皮尔曼的相关性分析表明,在右腿与左腿执行时,身体部分之间存在不同的运动控制策略.
- 与右臂摆动相比,观察到左臂摆动明显更大,不管支的腿是什么.
结论:
- 虽然腿部的主导地位不会改变螺旋任务中的整体动力学,但底层的运动控制策略不同.
- 不对称的手臂摆动模式表明在这些任务中保持平衡的潜在作用.
- 支腿的膝盖角更大与旋转期间减少的补偿头部摆动相关,突出了分段间的协调.
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